Immersive Touching

Immersive Touch is an augmented reality immersive system developed by Cristian J. Luciano, Greg Dawe, Pat Banerjee, and Lucian Florea at the University of Illinois at Chicago's Electronic Visualization Lab. It is among the first systems to integrate a haptic device with a head and hand tracking system and high resolution display. This makes it possible to maintain an overlap between the image and position of a haptic device. As you can see in the embedded video, users get a more realistic and natural way to interact in 3D objects in real time. This can be of great value as a way of training surgeons and other professionals who might well benefit from a little practice on a high-risk procedure. Imagine how Croquet could add a dimension of collaboration to such simulations....

Arts Metaverse Podcast

In this podcast from one of Educause's 2007 podcasting sessions, UBC's Ulrich Rauch (at right) provides an informed overview of how UBC's Ancient Spaces project got started and how his team is connecting the projects using Croquet as a way of establishing the Arts Metaverse immersive 3D platform and social network. You can also download an mp3 of the podcast here.

Touchy-Feely Croquet

UNC's Jeff VanDrimmelen has recently begun exploring ways to integrate haptic technology with Croquet virtual worlds. Haptic technology allows simulations to convey information to users in the form of mechanical stimulation. Haptic devices typically transmit information in the form of vibrations or motions, thereby creating a sense of touching or feeling virtual objects. The main types of haptic devices are 1) tactile feedback devices (that generate resistance to user input movement) and force feedback devices (that generate movement back to the input device).

The Novint Falcon device is a new haptic device developed for use as a gaming peripheral and input device. The user interacts with a small knob with three degrees of freedom in movement at the front of what is otherwise a stationary desktop device. The knob is attached to the main body via three multi-hinged and motorized arms. The step motors within the arms feel what the user is doing as well as apply forces back to the knob.



Jeff recently posted this video about his earliest effort to integrate the Novint Falcon haptic device with Croquet technology.

Duke Receives Mellon Award

Today, the Andrew W. Mellon Foundation awarded Duke University a $100,000 prize for leadership and development work to advance Croquet in the open source. The prize was one of ten presented as part of the second annual Mellon Awards for Technology Collaboration (MATC) which are given each year to not‐for‐profit organizations for leadership in the collaborative development of open source software tools with application to scholarship in the arts and humanities.



The award was presented at the Fall Task Force meeting of the Coalition for Networked Information in Washington D.C. by Sir Timothy Berners‐Lee, Director of the World Wide Web Consortium and the inventor of the World Wide Web. Duke’s MATC award was one of three that received the top prize of $100,000. The other award winners received prizes of $50,000 each. Award recipients were selected by the MATC Award Committee, which included Berners‐Lee, Mitchell Baker (CEO, Mozilla Corporation), John Seely Brown (former Chief Scientist, Xerox Corp.), Vinton G. Cerf (Vice President and Chief Internet Evangelist, Google, Inc.), John Gage (Chief Researcher and Director of the Science Office, Sun Microsystems, Inc.), and Tim O’Reilly (Founder and CEO, O’Reilly Media).

A New Logo

I thought it was time for a change.

Croquelandia

The University of Minnesota Croquet team led by Julie Sykes and Liz Wendland has developed a Croquet-based collaborative simulation of visiting another culture and using another language. It was developed as part of a grant to use Croquet as a teaching tool for Spanish Language Pragmatics. The simulation provides learners with a place to gain knowledge and practice language skills in a safe and non-threatening environment. Within this simulation they call Croquelandia, learners are able to collaborate with other learners or even native language speakers within the context of the world. The video trailer was filmed entirely on location in Croquelandia and edited by one of the multi-talented undergrad programmers at the U of M.

A Croquet Winter Wonderland

It has emerged as a type of practice here in the United States for people to begin putting up holiday decorations on the weekend after our annual Thanksgiving celebration. In keeping with this, I offer this link to a new video from the folks at EduSim. In this one, they use a projected Croquet space in combination with a very compact eBeam input device that converts any surface (in this case a regular wall) into an interactive surface. The result is an on demand and relatively low cost interactive white board solution ($800-900 US) that, in combination with a data projector ($600-2,500 US) and Croquet software (free), may represent the beginnings of an economical alternative to traditional in-classroom visual communication boards (the typical front-of-the-classroom whiteboard/bulletin board installation is comparable in price). Could this be the earliest manifestation of a new form of broadly available classroom media for K-12?

Squeak by Example

Croquet is written in Squeak, a modern open-source development environment for the classic Smalltalk-80 programming language (the first purely object-oriented language and environment). Squeak was used because Croquet required a number of capabilities that could only be provided by a true late bound, message sending language. Croquet's relationship to Squeak gives Croquet the property of a purely object-oriented system. This has allowed for some significant flexibility in the design and the nature of the protocols and architectures that have been developed for Croquet.

An essential property of Squeak is its ability to keep the system running while testing and making changes. Squeak allows even major changes to be performed incrementally and within a mere fraction of a second. Another key feature is Squeak's generalized storage allocator and garbage collector that is efficient in real-time so that animations and dynamic media of many kinds can be played while the garbage collector is collecting. It also allows reshaping of objects to be done safely. This is important to the creation and delivery of media rich collaborative virtual environments.

Early on in the project, a Java-based Croquet was considered. However, that approach was abandoned because Java lacks needed meta facilities. In many ways Squeak/Smalltalk is still far ahead of its successors in promoting a vision of an environment where everything is an object, and anything can change at run-time. This is an important property for virtual environments that are deeply flexible and modifiable as an immediate result of the actions people take within those environments. Still, the lack of significant corporate backing and marketing muscle behind Squeak/Smalltalk has meant that less capable technologies are the ones with which most of today's developers are most familiar.

To help more people get familiar with Squeak's very powerful programming environment, the new book Squeak by Example is now being made available under the Creative Commons Attribution-ShareAlike 3.0 license. It's intended for both students and developers and guides readers through the Squeak language and development environment by means of a series of examples and exercises. This is very useful to those who wish to become more familiar with the Croquet programming environment. You can either download the PDF for free, or you can buy a softcover copy from lulu.com.

Connecting Beyond the LAN

Tim Wang recently posted an explanation of how to use the present Croquet SDK to connect with other Croquet peers outside of a local area network.

Avatars in First Life

This video illustrates what real life might be like if we were limited to the avatar capabilities/interactions presently available in virtual worlds such as Second Life. It very much underscores the limitations in the ways we are able to represent ourselves within today's 3D gaming and chat environments. If we are going to leverage virtual environments to support interactions between people, then we need far better ways of representing ourselves within them. Our representations should ideally be able to project as fully as possible the broadest range of human cues and capabilities. Clearly, 3D virtual worlds have a long way to go in this regard. As a first step, we need to get past the dress-up doll house metaphor that appears to have emerged for interaction within these environments.

The static avatars presently made available as placeholders in the Croquet SDK are far less capable than those of Second Life. Still, the Croquet SDK offers developers an opportunity to change whatever they need about the way people are represented with virtual environments. Opportunities for avatar experimentation are huge. Just imagine avatars that contain action triggers, link buttons, or even multiple on-board virtual environments. The possibilities through Croquet are as limitless as the imaginations brought to bear on the problem (and of course the resources expended in implementing them). The flexibility and efficiency of the Croquet programming environment gives researchers and other creatives far more capability in exploring how best to represent presence in virtual environments than is available with today's commercial 3D world technologies.

I should point out that all of the .mdl avatars that the Croquet SDK now uses actually came from an early version of the Alice project and from Squeak's Wonderland. However, the Croquet team at the University of Minnesota is working on some nicer avatars that will likely be made available in the next version of the Croquet SDK. A preview of the Minnesota avatars can be seen briefly on the Croquet video in a previous post. Also, Matt Schmidt and his team in Missouri are also beginning to experiment with avatar improvements and it will be interesting to see what they come up with.

What's in a Game?

"If game sounds frivolous, call it a simulation. If simulation sounds too stuffy or expensive, call it a game."

- William Horton, E-Learning by Design (2006)

RENCI Joins the Consortium!

I am pleased to announce that the Renaissance Computing Institute (RENCI) recently joined the Croquet Consortium. RENCI is a major collaborative venture of the University of North Carolina-Chapel Hill, Duke University and North Carolina State University. Supported by the state of North Carolina, RENCI focuses on finding solutions to complex, multidisciplinary problems. The institute is a virtual organization that includes facilities at the three Triangle universities, East Carolina University, and the University of North Carolina Asheville. RENCI's mission is to bring together scientists, technology experts, educators, artists, humanists and business and government leaders to address today’s most challenging multidisciplinary problems. By applying technological expertise and the world’s best computing, networking and data resources to these issues, RENCI strives to lead the effort to create a collaborative 21st-century problem solving environment designed to spur economic growth and lead to the next generation of transformative discoveries.

Imagining the Internet

Imagining the Internet: A History and Forecast is a multi-section online resource containing thousands of pages. It contains predictive pronouncements about the future of humankind drawn from thousands of people from every corner of the world - people from the past and from the present - experts and non-experts alike. The site is made possible by The Elon University/Pew Internet Project and is intended to expose future possibilities while simultaneously providing a peek back at the past. The site was conceived, developed, edited and maintained by Janna Quitney Anderson, an assistant professor at Elon University and director of Internet projects at Elon University's School of Communications.

Building a Lesson in EduSim

Here is another video tutorial developed by Rich White at the Greenbush EduSim project showing how to bring resources into an EduSim/Croquet world and how apply textures to those resources.

Tragedy in the Commons

At sometime during the night of Monday, February 26, 2007 a group of republican Second Life users, some sporting "Bush '08" tags, vandalized the John Edwards Second Life HQ. Though amusing to some, this type of activity underscores the need for secure virtual spaces - not just spaces where anyone, dressed up as anything they wish, can go anywhere and do anything they want. Restrictions based on identity or group affiliation are particularly important for serious simulation-based educational and research environments. Click here for a more detailed view of the damage.

How Croquet is Different

In recent months, more and more people have been asking me how Croquet is different from Second Life - thanks to all the media buzz around Second Life. Let me break it down this way: Croquet, as a software development environment, is more extensible than the development environments used to create collaborative worlds such as those in Second Life, and before that the unified metaverse of ViOS. These early server-based commercial approaches to establishing large-scale metaverses do not create computational environments that users/programmers can actually control - instead they must rely on constrained server-based computational environments to capture eyeballs for a variety of schemes to derive revenue for those who run the servers.

By contrast, Croquet makes it possible to develop any number of interlinked metaverses that can be deployed independently of a commercial authority or the constraints imposed by server-imposed resource limitations. The less cyberlibertarian of you may find value in the fact that Croquet can also be used by institutions to implement far more capable and flexible and controllable commercial systems than those of Second Life and before that ViOS.

Here are some additional points that distinguish Croquet from its predecessors/cohorts:

• Croquet's users/developers may freely share, modify and view the source code of the entire system.
• Croquet is platform and device independent.
• Croquet's users/developers may freely share, modify and view the source code of the entire system.
• Croquet provides a complete professional programming language, integrated development environment, and class library in every distributed, running participant’s copy.
• Croquet-based worlds can be updated while the system is live and running.

Marginalia on Steroids

Here is a video created by the Squeak-based Sophie-server project being done by a software architecture group at the University of Potsdam in Germany. It shows how a Sophie server-based technology can be used to enrich the way of reading books.

Sophie Server is a server application providing functionality to be used through Sophie Author, Sophie Reader, or even a Web browser. Sophie Server provides a home for all Sophie Books that exist in a shared networked environment, allowing users to search for, access, and contribute to them. The Sophie project is funded by the Andrew W. Mellon Foundation. See my earlier post for more information on the project.

As you can see in the video, Sophie is not just a tool to render traditional paper books for reading on a screen. Instead, the project goes way beyond the notion of eBooks by leveraging the deep interactive capabilities of your networked computer. Sophie is basically an easy-to-use digital media assembly tool which allows both you and others to combine images, text, video, and audio into a single multimedia document containing multiple layers of information. This approach promises to open up the world of multimedia authoring to a wide range of creative people.

Making Martians with Croquet

A nice video of kids making Martians with a Croquet-based interactive whiteboard application prototype. What I find exciting about this video is that through the power of this technology, these children are engaged in deeply creative, cross-disciplinary, and collaborative activity that involves art, science, and technology. These types of environments could be quite valuable as tools for engaging students in science and technology. Just imagine what a bunch of adults might do with this stuff...

The Importance of Being Obvious

When giving demos, I'm often struck by how important it is for a good many people to see a full implementation of a graphically-rich Croquet environment. Apparently, it takes a built-out virtual space for many of them begin appreciating the potential of the underlying system. That's a shame, since the Croquet technology is not really about the content that you put into it. With the limited resources at our disposal, we've been focused on functionality rather than the eye candy.

Still, graphical elements such as richly textured models and other content within virtual worlds are important because they are the first things that people see - and connect with. Some popular 3D worlds such as Second Life are perhaps not as much about the capabilities of their enabling technology as they are about enabling access to content and social presence.

Like it or not, it is for the most part that graphical eye candy and elements of content that frame people's perception of the underlying technology. I consider such elements of any richly-rendered 3D world scene in Croquet to be merely content within a system having deep capabilities. Yet, the models and textures set the tone for the experience of discovering what Croquet is all about since they have the potential to provoke a deep emotional connection between the user and the simulation. When you think about it, the very best of the 2D web browser applications available today are of no value unless they are used as viewers of web content. In fact, regardless of how wonderful their inner workings, the best and worst of them would be of equally minor value to users.

To date, many of the models and textures made available in the Croquet SDK were borrowed from the Alice project, other content was thrown into the distribution with little consideration of quality - after all, our efforts have been centered around improving the underlying technology and not the content. However, now that we are building the first open applications with Croquet, you will be seeing a lot more and different content as examples in the distribution. I believe that once users can access spaces that other users have built, then the quality of content accessible via Croquet worlds will increase greatly through the dynamics of social software systems.

I'm hoping that readers of this blog would be interested in helping with this by making textured 3D content available to the Croquet project. Please email me if you are able and willing to create quality content and scenes that we could include as part of the next release of the Croquet SDK and future applications. Your participation in this exciting project would be most welcome.

Rubikubist Croquet

Interesting video of a Croquet-based implementation of Erno Rubik's Magic Cube puzzle. It's amazing what can be done with the Croquet development environment and a little creativity. For solutions to the dastardly 3x3x3 cube, see Dan Brown's nicely narrated two part tutorial: Part 1, Part 2.

Matty X's Quick and Dirty Guides

Earlier this month, Matt Schmitt began blogging on his experiences around researching, designing, and building Croquet learning environments as part of his doctoral thesis work at the University of Missouri-Columbia. Making note of the need for better documentation around the current Croquet SDK, Matt has taken the initiative to begin developing a series of nicely done how-to guides for the SDK. Here are links to his first three installments:

Guide I shows you how to successfully initiate the KCroquetParticipant subclass from within Squeak.

Guide II shows how to identify basic elements of a Squeak script and how to make minor changes to provided code examples.

Guide III shows how to assign a script to a button in Squeak and then change the name of the button.

Big Screens and Wii-Croquet

Matt Schmitt and Sean Goggins recently developed this video demo showing how a Wii controller can be used as an input device for Croquet worlds on large format screens. Matt is a curriculum developer/designer working with Croquet environments as part of his doctoral research at the University of Missouri-Columbia's School of Information Science and Learning Technologies. Like the folks at UBC (see my previous post), Matt is also using DarwiinRemote.

Pre-K Croquet

Math, art, and computer skills activities in Croquet-enabled pre-kindergarten, 1st, and 3rd grade classrooms.

"Gee, Toto, I don't think we are in Kansas anymore" -- Dorothy Gale

More Bad Predictions

Yesterday's blog posting prompted me to once again make available (this time as an embedded video) this wonderful short film that was done for Red Hat by the folks at Capstrat, a strategic communications firm here in Raleigh, North Carolina.

Over the past ten years I have personally witnessed numerous declarations that "there is no real value to 3D user interfaces" and that virtual environments will "never be used beyond entertainment." I have also been admonished that "3D is frivolous" and that "everything you need to do with a computer can be done with 2D windowing interfaces just fine." At this time I won't identify the people who have said these things. Suffice it to say that they are all attributable to people who are well known in the information technology and venture capital world. You know who you are... ;)

Roadmapping the Metaverse?

Last year, I had the opportunity to participate in the Metaverse Roadmapping Project. Sponsored by the Acceleration Studies Foundation (ASF) and its supporting partners, a group of distinguished industry leaders, technologists, analysts, and creatives were brought together at a summit in Palo Alto, California to provide insights and explore the virtual and 3D future of the World Wide Web in a first-of-its-kind cross-industry public foresight project. An overview of what resulted from this exercise can now be downloaded as the Metaverse Roadmap (MVR).

The roadmap documents basically seek to define an anticipation horizon of ten years (to 2017), a “longer-term” speculation horizon of twenty years (to 2025), and a charter to discover early indicators of significant developments ahead. Its really a filtered amalgam of the many diverse points of view expressed by those who were invited to the summit in combination with the collected results of several public and expert surveys, a few workshops and roundtables at major U.S. conferences, social meetups, and information collected via a public wiki.

The MVR comprises two documents, both are available at the MVR website. The first is a set of MVR Inputs which summarize key insights in 19 foresight categories. The second is a MVR Overview which synthesizes some (not all) of the MVR Inputs into a series of narratives to explain what the authors feel are important features of the change and opportunity ahead. The authors include John Smart (Acceleration Studies Foundation), Jamais Cascio (Open the Future), and Jerry Paffendorf (Electric Sheep Company).

I tend to be a bit skeptical that attempts to predict or roadmap the future of science and technology have any value beyond other than that of providing a form of entertainment for people who look back from the future. It's an especially bad idea to declare that something can't or won't be done. In the back of my mind are the many, and in some cases embarrassing, predictions that have missed the mark:

"This 'telephone' has too many shortcomings to be seriously considered as a means of communication. The device is inherently of no value to us." -- Western Union internal memo, 1876.

"The wireless music box has no imaginable commercial value. Who would pay for a message sent to nobody in particular?" -- David Sarnoff's associates in response to his urgings for investment in the radio in the 1920s.

"Who the hell wants to hear actors talk?" -- H. M. Warner, Warner Brothers, 1927.

"I think there is a world market for maybe five computers." -- Thomas Watson, chairman of IBM, 1943.

"But what...is it good for?" -- Engineer at the Advanced Computing Systems Division of IBM, 1968, commenting on the microchip.

"There is no reason anyone would want a computer in their home." -- Ken Olson, president, chairman and founder of Digital Equipment Corp., 1977.

"So we went to Atari and said, 'Hey, we've got this amazing thing, even built with some of your parts, and what do you think about funding us? Or we'll give it to you. We just want to do it. Pay our salary, we'll come work for you.' And they said, 'No.' So then we went to Hewlett-Packard, and they said, 'Hey, we don't need you. You haven't got through college yet.'" -- Apple Computer Inc. founder Steve Jobs on attempts to get Atari and HP interested in his and Steve Wozniak's personal computer.

Perhaps Alan Kay is on the mark when he declares that "the best way to predict the future is to invent it."

Wii Remote and Croquet: Part Deux

Another video from UBC of Tim Wang's integration of a Wii remote with an iMac running Croquet.

Wii Remote and Croquet

Tim Wang and his colleagues at UBC have successfully rigged a Wii controller to an iMac running Croquet (using DarwiinRemote). The Wii controller is a wireless hand held pointing device that can detect acceleration in three dimensions. Click here for more details on this effort from Tim Wang's eLearning Blog.

Duke Honored

Duke University recently made CIO Magazine's 2007 CIO 100 list for "IT departments that understand what makes their companies tick and IT leaders who can translate vision into reality." The award was specifically focused on the work done across our university to improve academic technology services. There are many very hard working people who are responsible for our inclusion in this list. It's most rewarding to work here at Duke with people that truly value innovation - and that have the courage, fortitude, and perseverance to make that innovation happen. You can read about the award here.

A Croquet Mars Colony Simulator

A video of six kids collaboratively co-constructing a simulated colony on Mars using a Croquet-based EduSim 3D Smartboard application prototype running on both a networked smartboard and several personal computers. This work is being done by Rich White of the Greenbush Southeast Kansas Educational Service Center. I am told that the kids really engage with this.

Croquet Smartboarding with Kids

Here is another wonderful video from our friends at the Greenbush EduSim project. This one shows a teacher building a lesson with a Croquet-based smartboard application prototype - and then kids actually using the lesson. Really nice.

Intel Joins the Consortium!

Intel Corporation (Intel) recently joined the Croquet Consortium with Intel Research's John David Miller providing leadership on our ever growing Board of Directors. We're most gratified that Intel recognizes the value of Croquet and we now look forward to this important company's support and participation as we work together to improve the technology and continue to grow a viable consortium of academic and industry partners.

The SDK is Not an App!

The Croquet SDK (software developer's kit) can be used to develop metaverse applications - though it is not an application in itself. It's intended as a resource for serious developers who wish to build collaborative metaverse applications for education, research, industry and entertainment. It delivers a foundational infrastructure for creating persistent, interconnected and collaborative 3D virtual worlds. The SDK is not an application in itself - any more than Java is an application (see my previous post on this).

The examples included within the SDK should be thought of as working code and not as how-to's or applications in themselves. Still, I often get feedback from people that the user interface is too difficult or that the "application" doesn't make sense to non-developer end-users.

One of the challenges we face with this project is that the graphically-interesting 3D user interface and textured 'environments' included as examples within the Croquet SDK provide many people with the incorrect impression that these are traditional and end-user-useable applications intended as alternatives to commercial production-quality metaverse environments (many of the same people would never think of providing a Java software developers kit to an end-user as a way of evaluating a potential Java-based application's usability).

The Croquet SDK was released to make it possible for programmers to join forces to create compelling end-user applications. In my earlier posts, I talk about some of what is beginning to be created. There is much more in the pipeline and the members of the Croquet Consortium are now focused on building an open source 3D Croquet-space browser application based on the SDK. We are planning to have a version available in 2008.

Virtual World Interoperability

There's been a lot of talk recently about the need for virtual world interoperability. By that I mean the ability for a character in one virtual world system to be able to enter another virtual world system and carry with it certain attributes and capabilities. For example, my Second Life persona, Imortega Lungu, might wish to leave the realms of SL and enter Everquest II to trade in 3D models that were previously bought with Linden Dollars in SL. The prospect of such trans-world commerce is apparently capturing the imagination of representatives from several large corporations because of the sense that money can be made if player identity can move from one virtual world service to another. Exactly how that would work and how value could be captured by the creators of those worlds remains unclear - but it's an interesting notion nonetheless.

This discussion is happening because today's virtual world technologies are for the most part a series of technologically-distinct walled gardens - a bit like Prodigy, Compuserve and AOL were before the advent of the web in the 80's and early 90's. The desire to have a single metaverse that binds together all of the emerging virtual world technologies is a dream shared by many. Such a unifying metaverse would be to 3D as the web was to 2D. It would also have the potential effect of rendering today's virtual world technologies obsolete in the way that early walled gardens were rendered obsolete by the emergence of NCSA's Mosaic web browser. The problem is that the equivalent of what Mosaic was to the web has yet to emerge for 3D virtual worlds. Until it does, there will be much talk around seeking interoperability, standardization, and integration of disparate virtual worlds. Unless there are good business cases for company's to let their virtual world users transcend the walls of their virtual walled gardens, there may be little progress toward the broad interoperability now being envisioned.

WFU Joins the Consortium!

I'm delighted to report that Wake Forest University (WFU) has joined the Croquet Consortium. WFU's CIO, Jay Dominick, has also taken a seat on our growing Board of Directors. We look forward to having our colleagues from WFU join the rest of us in working to create open source applications in support of the unique needs of higher education. Specifically, WFU will be working closely with colleagues from Duke, University of Minnesota, and the University of British Columbia to implement secure and enterprise-integrated virtual world applications in support of higher education.

HP Joins the Consortium!

I'm most pleased to report (although somewhat belatedly) that HP (Hewlett-Packard) has joined the Croquet Consortium as a founding member and that HP Labs' Rick McGeer is serving on our growing Board of Directors. It's encouraging to have the recognition and continued support of leading technology company like HP on this effort. We also look forward to Rick's leadership and participation as consortium members work to coordinate the continued development of Croquet as an open source application based on the present Croquet SDK.

More Fun With Greenbush EduSim

Here is another video demo by the folks at the Greenbush EduSim Project. In it you will see a full-featured in-world browser in action along with several other functionalities of the system including copy/paste functionality and a fractal terrain generator that was developed at The University of Minnesota. Nice music.

Croquet on a Smartboard: Part Deux

This video was produced as a follow up to the Greenbush EduSim Project video in the previous post. It's intended as a more practical how-to directed at K-12 teachers served by the Greenbush Southeast Kansas Education Service Center.

Croquet on a Smartboard

The EduSim 3D Smartboard Application is a very cool Croquet-based white board being developed by Rich White of the Greenbush Southeast Kansas Educational Service Center. It's designed to provide educators and students with a way of linking 3D activities across multiple white boards by leveraging many of Croquet's existing capabilities. Greenbush is working to ensure that The Edusim is being developed with resource packs for the K-12 classroom. This is exactly the type of application that Croquet technology was designed to make possible. Kudos to Rich for helping to bring Croquet to the next level. The video says it all.

Cost of Simulations

The production of simulation-based learning environments can be an incredibly expensive proposition. Some of my friends in the video game development business tell me that a typical lower quality video game that is designed for around forty hours of game-play will, at minimum, cost between $2-20M dollars to produce (the cost can be much greater for higher quality games). Now consider the potential costs of creating a high quality simulation-based learning environment that provides forty hours of instruction in the context of a richly rendered 3D virtual environment.

It would seem that the production costs of high quality simulation-based learning environments might stand in the way of a future where students could learn and interact within detailed and highly functional online worlds. After all, there aren't many institutions that can afford to pay $2-20M for production of an entire online course that would need to support support forty hours of engaging contact with simulation-based content. Clark Aldrich's very informative blog on serious games and simulations recently listed the costs of producing simulation-based learning environments. What Clark's list really underscores is that any widespread use of simulation-based learning environments over multiple courses will be a costly proposition unless we can leverage a different set of dynamics for their construction.

Branching story:
Simulation in which students make a series of decisions via a multiple choice interface to progress through and impact an event.

Custom short (Less than 10 minutes) (perpetual site license): $30K
Custom medium (Between 10 minutes and 30 minutes) (perpetual site license): $100K
Custom long (Between 30 minutes and 2 hours) (perpetual site license): $500K
Off-the-shelf short (per user): $30
Off-the-shelf medium (per user): $100
Off-the-shelf long (per user): $500

Interactive spreadsheet:
Simulation in which students typically try to impact critical metrics by allocating resources along competing categories and getting feedback of their decisions through graphs and charts.

Custom short (Less than 1 hour) (perpetual site license): $30K+
Custom medium (Between 1 hour and 4 hours) (perpetual site license): $100K+
Custom long (Between 4 and 8 hours) (perpetual site license): $500K+
Off-the-shelf short (per user): $30*
Off-the-shelf medium (per user): $100*
Off-the-shelf long (per user): $500*

Mini-game:
Small, easy-to-access game built to be simple and addictive, which often focuses on mastering an action and can provide awareness of more complicated issues.

Custom short (5 minutes) (perpetual site license): 10K
Custom medium (10 minutes) (perpetual site license): 15K
Custom long (30 minutes) (perpetual site license): $40K
Off-the-shelf short (per user): n/a
Off-the-shelf medium (per user): n/a
Off-the-shelf long (per user): n/a

Virtual labs:
A series of challenges/puzzles to be solved using on-screen representations of real-world objects and software

Custom short (30 minutes) (perpetual site license): $30K
Custom medium (1 hour)(perpetual site license): $75K
Custom long (4 hours)(perpetual site license): $150K
Off-the-shelf short (per user): $10
Off-the-shelf medium (per user): $30
Off-the-shelf long (per user): $100

Practiceware:
Real-time, often 3D sims that encourages participants to repeat actions in high fidelity situations until the skills become natural in the real-world counterpart

Custom short (1 hour)(perpetual site license): $100K+
Custom medium (5 hours) (perpetual site license): $500K+
Custom long (20 hours) (perpetual site license): $1M+
Off-the-shelf short (per user): $100*
Off-the-shelf medium (per user): $400*
Off-the-shelf long (per user): $1000*

+ plus cost of facilitation
* including cost of facilitation
---

Can the dynamics of open source social software solve the problem of high cost simulation production for education? I think that it can. All we need is the right tools and the collective will to use them. After all, the MediaWiki-based Wikipedia doesn't cost anyone much money at all (in 2006, Wikipedia's Internet hosting costs came to $189,631). The cost of Wikipedia's real value - that of its content - has been distributed across its many contributors. What we need to solve the cost problem for simulation-based learning is a good 3D wiki-like technology that could be used to "evolve" multi-authored and highly functional simulation-based learning environments at low institutional cost.

Bright Shiny Objects

Space and place are really two very different concepts that are unfortunately often conflated by the designers of many of today's collaborative metaverses. Virtual spaces are representations of spaces in the real world, replete with mountains, trees, avatars, and other representations of real world artifacts. By contrast, virtual places are 3D user interfaces invested with meaning and function that need not be directly representational of anything in the real world. Open source software tools needed to create, deploy, and modify sophisticated and highly functional places are in increasing demand in education and industry. At the same time, design paradigms for such virtual places are still in their infancy.

Problem is that we don't presently have very many good models for the utility of highly-flexible 3D environments in support of productivity. Until then, many designers rely on using today's online gaming and entertainment applications as the models upon which to build their ideas. Most of the current batch of early 3D educational and productivity support environments run the risk of becoming too representational and game-like than is warranted. An effective argument can be made that representational environments are appropriate in support of game-based learning. However, not all learning or productivity support need be game-based.

With all the current publicity around online gaming and online 3D walled-gardens, the value of place is therefore too often overlooked - even by those who are entrusted with exploring the diversity of issues and solutions associated with the advent of emerging new media in support of education and industry. Bright shiny objects have a way of catching the eye and distracting ones attention...

This relevant link is from the YNNO Research blog in which YNNO researchers outline some very relevant differences between place and space that should be taken into account when designing collaborative 3D environments for work and education. YNNO, is a Dutch consultancy firm for innovative working which studies how innovation in workplace design, business process management and ICT tools can increase the productivity of today's knowledge workers.

A Croquet Demo Movie

UBC Joins the Consortium!

The University of British Columbia (UBC), home of the recently established Arts Metaverse project, has just joined the Croquet Consortium! We look forward to having our colleagues from UBC join the rest of us in helping to create open source tools to support the unique needs of higher education.

Arts Metaverse is a 3D virtual environment based on the open-source Croquet platform. It is being developed under the guidance of Tim Wang and Ulrich Rauch in the The University of British Columbia's Arts Instructional Suppport & Information Technology unit. Arts Metaverse is intended to provide a way for scholars, teachers, students, and interested individuals to create their own virtual spaces in which they can interact and collaborate with others.

Croquet was chosen as the foundational technology for the Arts Metaverse project because it provides:

• A powerful P2P network support. When Croquet runs, it automatically detects other computers that are running Croquet.
• Portal technology that allows application sharing between different operating systems. So that you can play a PC game with your Mac friends.
• Video conferencing and other communication tools without using server technology.
• Ability for users to freely define the space being created, providing “land owners” (the academics) complete customizable controls of the environment. (e.g. not just define the gravitational force in the land).
• Ability to back up the contents published using Croquet, take worlds on line and off line, and avoid many copyright issues.
• A structured p2p Croquet network that is much more secure than a server based large scale metaverse.

The above screenshot shows the UBC website being displayed within the Croquet-based Arts Metaverse.

Mark McCahill at Duke

I am quite pleased to announce that Mark McCahill is leaving the University of Minnesota for a position here at Duke University as our architect of e-learning and collaborative systems!

Mark has been developing and popularizing a number of Internet technologies since the late 1980s. He will bring to Duke the benefits of his deep background and rich experiences in collaborative systems development, large scale information system development and deployment, and 3D visualization.

After receiving a bachelor's degree in chemistry at the University of Minnesota, Mark took a job doing analytical chemistry and analyzing the results on the campus mainframe. In 1989, Mark led a team at the University of Minnesota that developed one of the the first popular Internet e-mail clients (POPmail) for the Macintosh (and later the PC).

In 1991, Mark led the original Internet Gopher development team and helped invent a simple way to navigate distributed information resources on the Internet. Internet Gopher's menu-based hypermedia paved the way for the popularization of the Web and was the de-facto standard for Internet information systems in the early-to-mid 1990s. In 1994-95 Mark's team developed GopherVR, a 3D user interface to Internet Gopherspace.

Working with other pioneers such as Tim Berners-Lee, Marc Andreessen, Alan Emtage and Peter J. Deutsch (creators of Archie) and Jon Postel, Mark was also involved in creating and codifing the standard for Uniform Resource Locators (URLs). Most recently Mark has served as one of the six principal architects of the Croquet project and was instrumental in founding the Croquet Consortium.

I look forward to working closely with Mark as we apply the lessons learned from first generation Internet information systems to next generation collaborative systems including enterprise-integrated applications based on Croquet.

Croquet SDK 1.0 Released!

Nonprofit ‘Croquet Consortium’ Releases Open-Source Software Tool Kit to Promote Collaborative 3-D Virtual Environments

DURHAM, N.C. – March 27, 2007 – A nonprofit consortium of academic and corporate partners today announced the release of a free software toolkit for developers to use in creating 3-D "virtual environments."

"We’re seeking to enable the creation of a rich series of interconnected 'Croquet worlds' where people can engage in productive collaborative interactions in support of learning and commerce – worlds that can be created, maintained and continually modified without the constraints of proprietary computer code," said Julian Lombardi, assistant vice president of Duke’s Office of Information Technology.

The Croquet Consortium’s new "3-D Virtual Environments Software Developer’s Kit" (Croquet SDK 1.0) will promote collaboration among far-flung research teams working on everything from cancer cells to hurricanes, as well as active learning among students and their instructors. These networked 3-D teams from research, education and industry will be able to work together across a variety of computer platforms and devices, from laptops to cell phones.

"This will change the way people think about software and computation, from today’s device-oriented perspective to a perspective of computation as a persistent, pervasive service," said Patrick Scaglia, vice president and chief technology officer of HP's Imaging and Printing Group.

Croquet 3-D virtual environments can support live discussion among worldwide collaborators who come together in "real time" within a 3-D virtual space. They may view, manipulate and revise documents, dynamic visualizations or large amounts of data from sources such as laboratories or supercomputing centers.

Added Greg Nuyens, chief executive officer of Qwaq Inc., "we have found Croquet to be a compelling platform technology for developing very large scale, richly featured and interlinked virtual environments. With the release of the Croquet SDK, we are excited about the new possibilities for using Croquet in our products and see benefits for developers everywhere."

For example, public health officials and epidemiologists across a country could use the Croquet environment to track the spread of an infectious disease by sharing a dynamically changing display of infection data. Similarly, architects and engineers could collaborate on a building design, or chemists and biologists could prototype different chemical compositions for a new drug.

The free kit provides developers with a flexible tool to create virtual spaces with built-in networked telephony and a "late-binding object-oriented" programming language that allows multiple users to jointly create, animate or modify 3-D objects and dynamic simulations. Developers can also import and share resources, such as 2-D web applications or multimedia content, from their own systems. Working together across multiple locations, they can change simulations while they are running and work together to create new applications – all in "real time."

The kit can be downloaded from the consortium’s website, http://croquetconsortium.org.

The newly formed Croquet Consortium is a 501(c)3 not-for-profit organization dedicated to developing and promoting the widespread adoption of open-source, Croquet technologies for research, education and industry. Its institutional supporters include Duke University, the University of Minnesota, HP, 3dSolve Inc. and Qwaq Inc. Croquet was initiated by Alan Kay – winner of the Kyoto Prize and the Turing and Draper awards – working in collaboration with David A. Smith, Andreas Raab, David P. Reed, Mark P. McCahill and Lombardi.

A Croquet Consortium

Today, HP, Duke University, The University of Minnesota, and Qwaq, Inc. jointly announced the formation of The Croquet Consortium, Inc., a 501(3)c non-profit foundation dedicated to promoting the continued development and widespread adoption of open source Croquet technologies for use in education, research, and industry. The launch of The Croquet Consortium coincides with the Consortium’s release the open source Croquet Software Developer’s Kit 1.0 -- as free software under the Croquet Open Source License.

The Croquet Consortium provides an organizational base for the Croquet community of developers and users. Open to institutional and individual members, the Consortium offers an avenue for academic, corporate, and individual members ensure the long-term viability of the community by federating their Croquet software development projects mobilizing distributed resources on their behalf.

With the launch of The Croquet Consortium, Inc., the development and adoption of scalable Croquet-based applications for use in education, research and industry enters a new, expanded, and highly-inclusive phase of multi-institutional collaboration. The Consortium 1) establishes a legal home for the Croquet community, 2) coordinates the management, definition and release of core interoperable Croquet architecture, 3) provides a clearinghouse for the collection and distribution of freely available Croquet open source software artifacts, 4) supplies a management structure for the solicitation and mobilization of distributed development resources, and 5) creates a focal point for outreach activities, including the Consortium Website, Annual Conference, training workshops, fellowships, and sponsored projects.

For more information about the Consortium, click here.

Changing Times

In a recent Point of View article in The Chronicle Review, Cathy N. Davidson expresses her opinion on the Middlebury College History Department's recent snubbing of Wikipedia and why academic institutions can no longer ignore the changes that are being brought about by social software technologies and the types of creative dynamics they enable. The issues discussed in Cathy's piece have relevance to social collaborative tools such as wikis and the types of co-constructed knowledge spaces that Croquet-based educational environments make possible.

Today's co-constructed 3D environments provide us with the potential to disseminate ideas as visual and dynamic objects in the way that text-based facts and ideas are constructed and disseminated via today's Wikipedia. This capability will have a profound effect on the academic world in that it has the potential to fundamentally change to how we communicate and learn. The changing legitimacy of Wikipedia is only the tip of the iceberg. The advent of social software and self-regulating large-scale group dynamics stands to challenge traditional models of instruction, authorship, copyright, and the value of static auteur-generated scholarly works.

Democratizing Content

Michael J. Freedman recently gave a talk on "Democratizing Content Distribution" at the Duke Computer Science Department Colloquium. The work that Michael is doing is relevant to several of my earlier postings - including the ones around metaverse scalability, metaverse economics, and the problems associated with centralized control of large scale information systems. Here is the somewhat academese abstract of his talk:

In order to reach their large audiences, today's Internet publishers primarily use content distribution networks (CDNs) to deliver content. Yet the architectures of the prevalent commercial systems are tightly bound to centralized control, static deployments, and trusted infrastructure, thus inherently limiting their scope to ensure cost recovery. This talk describes a number of techniques (and the resulting systems) that realize highly-scalable cooperative content distribution. I show how to build a fully self-organizing CDN that efficiently delivers content using unreliable nodes, describe how to transparently dispatch clients to nearby servers, and touch on how to securely leverage even untrusted resources. These ideas have been implemented, deployed, and tested in production systems currently serving several terabytes of data to more than a million people every day. The view of the Internet gained from deploying these systems answered long-standing questions about network configuration, while providing important insights that helped evolve our systems' designs.

Michael is presently a doctoral student at NYU, visiting Stanford since 2005. He received his M.Eng. and S.B. degrees from MIT. His research interests span distributed systems, security, networking, and cryptography, with a focus on both principled designs and real deployments.

Truth Happens

Enjoy...

Productive Social Networks

Marshall Van Alstyne and co-authors Sinan Aral and Erik Brynjolfsson recently completed a five-year analysis of how IT makes people more productive. Their study was sponsored by The National Science Foundation, Cisco Systems Inc. and Intel Corp. and analyzed 1,300 projects and 125,000 e-mails to see how IT influences individual productivity. They were particularly keen to understand the factors predicting revenue generation and project completion. The study found that IT didn't necessarily make projects faster but that it did dramatically increase productivity by facilitating multitasking. They also concluded that IT-supported social networks predicted productivity better than experience did. This is encouraging news to those of us who seek to develop infrastructures that support collaboration and personal productivity. Click here and here for abstracts of the study.

Van Alstyne's overall research program at MIT includes studying the economics of free software and platform innovation in which he explores socially optimal licensing of information goods in order to promote 1) adoption of and 2) complementary investment in an information platform by 3rd parties. His work has received an NSF Career Award, two best paper awards, and has appeared in Science, Management Science, and the Harvard Business Review.

Antimonopolist Threads

Below are links to reflections on the notion of media control by a single company. They are relevant to what we are trying to do with Croquet since we are seeking to develop the technology foundations to support a global interlinked metaverse (a medium) that people can freely contribute to and use. As a way of ensuring this, we have developed a soon-to-be-released and relatively exotic-but-powerful open source technology infrastructure. We are now also in the process of setting up a not-for-profit foundation that is free from the burden of turning a direct profit for any investors. The success of such an effort will be related to our ability to attract and empower a viable community of developers, users, and sponsors that will join in the mission of ensuring that the future common metaverse is in everyones hands.

http://thisvirtuallife.blogspot.com/2006/10/future-of-internet-is-not-secondlife.html

http://metaverse.acidzen.org/2007/more-on-the-race-for-the-capitol

http://www.techcrunch.com/2007/01/08/second-life-goes-open-source-should-it-be-non-profit-too/

Scoble on Croquet

Last May, the well known blogger, technology evangelist, and author Robert Scoble saw David Smith and I give an early public demo of Croquet at the 2006 Metaverse Roadmap (MVR) meeting that took place at SRI International in Menlo Park. Here is what Scoble had to say about what he saw.