Michael Feldstein responds on NGDLEs with a brilliant in-depth piece on the complex issues involved in building standards for online learning tool interoperability and more. I wish I’d read this before posting my own most recent response because it addresses several of the same issues with similar conclusions, but in greater depth and with more eloquence, as well as bringing up some other important points such as the very complex differences in needs between different contexts of application. My post does add things that Michael’s overlooks and the perspective is a little different (so do read it anyway!), but the overlapping parts are far better and more thoroughly expressed by Michael.
This is an idea that has been in the air and ripe for exploitation for a very long time but, as Michael says in his post and as I also claim in mine, there are some very big barriers when it comes down to implementing such a thing and a bunch of wicked problems that are very hard to resolve to everyone’s satisfaction. We have been here before, several times: let’s hope the team behind NGDLE finds ways to avoid the mistakes we made in the past.
Malcom Brown has responded to Tony Bates and me in an Educause guest post in which he defends the concept of the NGDLE and expands a bit on the purposes behind it. This does help to clarify the intent although, as I mentioned in my earlier post, I am quite firmly in favour of the idea, so I am already converted on the main points. I don’t mind the Lego metaphor if it works, but I do think we should concentrate more on the connections than the pieces. I also see that it is fairly agnostic to pedagogy, at least in principle. And I totally agree that we desperately need to build more flexible, assemblable systems along these lines if we are to enable effective teaching, management of the learning process and, much much more importantly, if we are to support effective learning. Something like the proposed environment (more of an ecosystem, I’d say) is crucial if we want to move on.
It has been done before, over ten years ago in the form of ELF, in much more depth and detail and with large government and standards bodies supporting it, and it is important to learn the lessons of what was ultimately a failed initiative. Well – maybe not failed, but certainly severely stalled. Parts persist and have become absorbed, but the real value of it was as a model for building tools for learning, and that model is still not as widespread as it should be. The fact that the Educause initiative describes itself as ‘next generation’ is perhaps the most damning evidence of its failure.
Why ELF ‘failed’
I was not a part of nor close to the ELF project but, as an outsider, I suspect that it suffered from four major and interconnected problems:
It was very technically driven and framed in the language of ICTs, not educators or learners. Requirements from educators were gathered in many ways, with workshops, working groups and a highly distributed team of experts in the UK, Australia, the US, Canada, the Netherlands and New Zealand (it was a very large project). Some of the central players had a very deep understanding of the pedagogical and organizational needs of not just learners but organizations that support them, and several were pioneers in personal learning environments (PLEs) that went way beyond the institution. But the focus was always on building the technical infrastructure – indeed, it had to be, in order to operationalize it. For those outside the field, who had not reflected deeply on the reasons this was necessary, it likely just seemed like a bunch of techies playing with computers. It was hard to get the message across.
It was far too over-ambitious, perhaps bolstered by the large amounts of funding and support from several governments and large professional bodies. The e-learning framework was just one of several strands like e-science, e-libraries and so on, that went to make up the e-framework. After a while, it simply became the e-framework and, though conceptually wonderful, in practical terms it was attempting far too much in one fell swoop. It became so broad, complex and fuzzy that it collapsed under its own weight. It was not helped by commercial interests that were keen to keep things as proprietary and closed as they could get away with. Big players were not really on board with the idea of letting thousands of small players enter their locked-in markets, which was one of the avowed intents behind it. So, when government funding fizzled out, there was no one to take up such a huge banner. A few small flags might have been way more successful.
It was too centralized (oddly, given its aggressively decentralized intent and the care taken to attempt to avoid that). With the best of intent, developers built over-engineered standards relying on web service architectures that the rest of the world was abandoning because they were too clunky, insufficiently agile and much too troublesome to implement. I am reminded, when reading many of the documents that were produced at the time, of the ISO OSI network standards of the late 80s that took decades to reach maturity through ornate webs of committees and working groups, were beautifully and carefully engineered, and that were thoroughly and completely trounced by the lighter, looser, more evolved, more distributed TCP/IP standards that are now pretty much ubiquitous. For large complex systems, evolution beats carefully designed engineering every single time.
The fact that it was created by educators whose framing was entirely within the existing system meant that most of the pieces that claimed to relate to e-learning (as opposed to generic services) had nothing to do with learning at all, but were representative of institutional roles and structures: marking, grading, tracking, course management, resource management, course validation, curriculum, reporting and so on. None of this has anything to do with learning and, as I have argued on many occasions elsewhere, may often be antagonistic to learning. While there were also components that were actually about learning, they tended to be framed in the context of existing educational systems (writing lessons, creating formal portfolios, sequencing of course content, etc). Though very much built to support things like PLEs as well as institutional environments, the focus was the institution far more than the learner.
As far as I can tell, any implementation of the proposed NGDLE is going to run into exactly the same problems. Though the components described are contemporary and the odd bit of vocabulary has evolved a bit, all of them can be found in the original ELF model and the approach to achieving it seems pretty much the same. Moreover, though the proposed architecture is flexible enough to support pretty much anything – as was ELF – there is a tacit assumption that this is about education as we know it, updated to support the processes and methods that have been developed since (and often in response to) the heinous mistakes we made when we designed the LMSs that dominate education today. This is not surprising – if you ask a bunch of experts for ideas you will get their expertise, but you will not get much in the way of invention or new ideas. The methodology is therefore almost guaranteed to miss the next big thing. Those ideas may come up but they will be smoothed out in an averaging process and dissenting models will not become part of the creed. This is what I mean when I criticize it as a view from the inside.
Much better than the LMS
If implemented, a NGDLE will undoubtedly be better than any LMS, with which there are manifold problems. In the first place, LMSs are uniformly patterned on mediaeval educational systems, with all their ecclesiastic origins, power structures and rituals intact. This is crazy, and actually reinforces a lot of things we should not be doing in the first place, like courses, intimately bound assessment and accreditation, and laughably absurd attempts to exert teacher control, without the slightest consideration of the fact that pedagogies determined by the physics of spaces in which we lock doors and keep learners controlled for an hour or two at a time make no sense whatsoever in online learning. In the second place, centralized systems have to maintain an uneasy and seldom great balance between catering to every need and remaining usably simple. This inevitable leads to compromises, from small things (e.g. minor formatting annoyances in discussion forums) to the large (e.g. embedded roles or units of granularity that make everything a course). While customization options can soften this a little, centralized systems are structurally flawed by their very nature. I have discussed such things in some depth elsewhere, including both my published books. Suffice to say, the LMS shapes us in its own image, and its own image is authoritarian, teacher-controlled and archaic. So, a system that componentizes things so that we can disaggregate any or all of it, provide local control (for teachers and other learners as well as institutions and administrators) and allow creative assemblies is devoutly to be wished for. Such a system architecture can support everything from the traditional authoritarian model to the loosest of personal learning environments, and much in between.
NGDLE is a misnomer. We have already seen that generation come and go. But, as a broad blueprint for where we should be going and what we should be doing now, both ELF and NGDLE provide patterns that we should be using and thinking about whenever we implement online learning tools and content and, for that, I welcome it. I am particularly appreciative that NGDLE provides reinvigorated support for approaches that I have been pushing for over a decade but that ICT departments and even faculty resist implacably. It’s great to be able to point to the product of so many experts and say ‘look, I am not a crank: this is a mainstream idea’. We need a sea-change in how we think of learning technologies and such initiatives are an important part of creating the culture and ethos that lets this happen. For that I totally applaud this initiative.
In practical terms, I don’t think much of this will come from the top-down, apart from in the development of lightweight, non-prescriptive standards and the norming of the concepts behind it. Of current standards, I think TinCan is hopeful, though I am a bit concerned that it is becoming over-ornate in its emerging development. LTI is a good idea, sufficiently mature, and light enough to be usable but, again, in its new iteration it is aiming higher than might be wise. Caliper is OK but also showing signs of excessive ambition. Open Badges are great but I gather that is becoming less lightweight in its latest incarnation. We need more of such things, not more elaborate versions of them. Unfortunately, the nature of technology is that it always evolves towards increasing complexity. It would be much better if we stuck with small, working pieces and assembled those together rather than constantly embellishing good working tools. Unix provides a good model for that, with tools that have worked more or less identically for decades but that constantly gain new value in recombination.
Footnote: what became of ELF?
It is quite hard to find information about ELF today. It seems (as an outsider) that the project just ground to a halt rather than being deliberately killed. There were lots of exemplar projects, lots of hooks and plenty of small systems built that applied the idea and the standards, many of which are still in use today, but it never achieved traction. If you want to find out more, here is a small reading list:
http://www.elframework.org/ – the main site (the link to the later e-framework site leads to a broken page)
http://www.elframework.org/projects.html – some of the relevant projects ELF incorporated.
https://web.archive.org/web/20061112235250/http://www.jisc.ac.uk/uploaded_documents/Altilab04-ELF.pd – good, brief overview from 2004 of what it involved and how it fitted together
https://web.archive.org/web/20110522062036/http://www.jisc.ac.uk/uploaded_documents/AltilabServiceOrientedFrameworks.pdf – spooky: this is about ‘Next Generation E-Learning Environments’ rather than digital ones. But, though framed in more technical language, the ideas are the same as NGDLE.
http://www.webarchive.org.uk/wayback/archive/20110621221935/http://www.elearning.ac.uk/features/nontechguide2 – a slightly less technical variant (links to part 1, which explains web services for non-technical people)
See also https://web.archive.org/web/20090330220421/http://www.elframework.org/general/requirements/scenarios/Scenario%20Apparatus%20UK%205%20(manchester%20lipsig).doc and https://web.archive.org/web/20090330220553/http://www.elframework.org/general/requirements/use_cases/EcSIGusecases.zip, a set of scenarios and use cases that are eerily similar to those proposed for NGDLE.
If anyone has any information about what became of ELF, or documents that describe its demise, or details of any ongoing work, I’d be delighted to learn more!