ADL Background
The Department of Defense (DoD) established the Advanced Distributed Learning (ADL) initiative in 1997 to develop a DoD-wide strategy for using learning and information technologies to modernize education and training and to promote cooperation between government, academia and business to develop e-learning standardization.
The ADL initiative has defined high-level requirements ("-ilities") for learning content, such as content reusability, accessibility, durability and interoperability to leverage existing practices, promote the use of technology-based learning and provide a sound economic basis for investment.
I (Philip Dodds) have been working on and off through the Institute For Defense Analyses since 1985 to help the DoD work on technology based learning systems issues. Over the past four years, I have focused full time on the DoD's ADL Initiative as Chief Architect. Here is some background of the project and how I got involved.
| The Early Beginnings - 1980's
Around 1985, or so, I was running the company I founded called Visage. We made laser disc systems and software used principally as interactive training systems. One day, I received a call from Dr. Dexter Fletcher (IDA) who was working on projects for DoD/Training and Readiness. Visage's systems were what we would call multimedia now. Back then it was called "Interactive Video." DoD was quite interested in advancing the state of the art of training (and still is), but the problem was that all of the vendors made incompatible systems. And, equipment and content development costs were very high indeed. |
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| I was persuaded by a visit from Dexter, Lt. Col G.A. Redding, and Gary Boycan (OUSD/P&R) to help DoD work with industry to develop compatibility standards within the fledgling industry group called the Interactive Video Industry Association.
About 1987, we began the development of "Virtual Device Interface" that would permit software and laserdiscs to run on conforming systems. Eventually, IBM, Sony, Visage and others adopted the new standard. |
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| I later left Visage and moved back to Annapolis. My wife Sue and I founded Randall House Associates (she's the president of RHA).
One of our contracts was to run the IVIA's compatibility effort with industry. We created an industry forum for the development of technical standards for multimedia. Sue and I were asked to take on the management of the IVIA, which soon changed its name to the Interactive Multimedia Association (IMA). |
IMA's sponsors included Apple, IBM, Microsoft, Intel, Macromedia, Digital Equipment, Hewlett Packard, Pioneer, Sun Microsystems, Mitsubishi, and others. |
| Our Partnership with IDA and DoD continued, and DoD funded the "PortCo" project (Portable Courseware) which developed conformance test software that IMA used to certify industry products.
Little did we know at the time that the Internet would change everything! CBT Background During the 80s and early 90s, the technology-based training centered largely around Computer Based Training (CBT) systems. Most CBT during that time was created using proprietary software authoring tools such as Authorware, Tool Book, and others. These products were used to create interactive courses and became quite sophisticated and multimedia-rich. CD-ROM delivery soon surpassed the laser disc in popularity. |
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| CBT was mostly delivered on stand-alone PCs, but in the early 90s vendors began to tie PCs together using local area networks. This prompted the development of central services, soon to be called Computer Managed Instruction systems.
Transition to the Web Then came the Internet, which changed the entire CBT industry. Authoring system vendors tried to adapt their CBT tools to the Internet with initially very mixed results. The proprietary data formats simply weren't compatible with open Internet standards. Most companies experimented with proprietary browser plug-ins, but only a few were successful. |
Dexter will put in at this point that networked training systems go way back earlier than this, but that's another story -- and, of course, he's right; but I'm talking about PC-based stuff here which didn't get started until 1983 or so with the introduction of the IBM PC and the Apple II. (I was working in the music industry at the time on the precursor of the MIDI standard.) |
| Another problem in the mid 90s was that browser-based learning content was not media rich, and was -- by comparison to CBT -- dull, non-interactive, and mostly "page turners".
The training industry initially resisted the Internet with some reason, but its value to reach anyone nearly anywhere, anytime won out over time (along with improvements in browser capabilities). |
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| Learning Technology Standards Begin
Industry groups such as the Aviation Industry CBT Committee (AICC) began to adapt their earlier LAN-based standards to the Internet, but the work took years and years, and continues today. The IEEE formed the Learning Technology Standards Group(LTSC), and the IMS Project formed during 1996-1998. |
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| The ADL Initiative Begins
In 1997, planning began within DoD and IDA to establish a new initiative aimed at accelerating the adoption of advanced distributed learning technologies. In the fall of 1997, DoD, the White House Office of Science and Technology, the Department of Labor, and others, kicked off the ADL Initiative. Over the next nine months, the ADL team worked up a plan of action. One of the mandates was the creation of interoperability standards. That became my focus then-forward. |
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| What's the problem to be solved?
Many of the first web-based "Learning Management System" (LMS) products used proprietary "middle ware" and data models to track learner performance. We found that among other things: - Learning content couldn't be moved from one LMS environment to another; - LMS products often couldn't integrate learning content created for other systems. - Couldn't create searchable content or content repositories
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| A New Vision
The ADL team envisioned a new approach for Internet delivered learning where learning objects can be reusable, searchable, durable, and accessible. We further imagined an approach that would enable customized learning experiences that match a learner's needs. Such learning experiences would be assembled "on the fly" and would adapt intelligently to the learner. Learning objects could include assessments, simulations, performance support, as well as directed learning experiences. |
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| Enter SCORM
During 1998, and after attending many, many technical meetings, we noticed that there were a number of parallel efforts to standardize various aspects of Internet-based learning systems. Unfortunately, these efforts were not initially coordinated and there was a great deal of confusion about where each of the work groups was headed. In early 1999, I drafted the first version of the Sharable Content Object Reference Model as a way to integrate and "connect" work from other organizations. |
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| As hoped for, the early SCORM draft served as a catalyst to get vendors working together. ADL pushed for new work to adapt the AICC's CMI model to the Internet resulting in a web-based communications model.
ADL worked with IEEE and IMS to stabilize the metadata specification and creating an XML binding. Later, ADL pursued an integration of AICC and IMS work resulting in the IMS's Content Packaging specifications. Each of these has since been included in SCORM. |
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| PlugFests and the ADL Co-Laboratory
In the latter part of 1999, Concurrent Technologies Corporation was funded by the Office of Naval Research to support the initiative. This enabled the development of test software to validate conformance with the SCORM specifications. Paul Jesukiewicz (IDA) was appointed Director of the ADL Co-Lab in Alexandria, VA. and which opened its doors in early 2001. The ADL Co-Lab hosted its first Plugfest in June, 2000. Vendors and content developers came together to test their wares, shake out bugs, and to see if the specifications actually worked. They did! |
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| ADL continues to work with a variety of organizations to coordinate the development and adoption of technical standards that enable Internet-based delivery of rich learning content.
Gradually, a new process has emerged and there is much better coordination among standards groups than in years past. ADL continues to provide a catalytic role by providing a solid test bed environment in the Co-Lab and by integrating and extending work from organizations around the world. |
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| The SCORM section of this site explains what's in the document, and what will be added in the future. Be sure to explore the remainder of this site (www.adlcommunity.net/) for additional information on both ADL and SCORM. |
ADL: www.adlnet.org AICC: www.aicc.org IEEE: ltsc.ieee.org IMS: www.imsglobal.org ARIADNE: www.ariadne.eu-org |
Dexter Fletcher (IDA)












