This same capability could be used by learners to aid in their own educational processes. The richer the tag set, the higher the likelihood of being able to craft a query that generates a precisely targeted set of candidates. Tagging In any system that uses learning objects, the objects are manipulated by the system independent of their content, at least until delivery to the learner. Consequently, the objects must be tagged to indicate many things about the content. Tags have a syntax that indicates the name of the field or domain of the tag, and the value attached to that label.
Some tags are necessary, independent of educational use.
Such tags would include technical issues of format, size, and delivery requirements. Other categories are authorship, ownership, and might include information about who did the tagging. Information might also track version number, status, and other issues associated with a lifecycle of the object. It might also indicate if there's been annotations or aggregations. While tags like this are certainly useful, one can imagine a number of additional tags that might be useful for educational purposes.