In this paper we motivate the necessity of time+resource metadata in current e-learning
standards to support collaborative activities. Learning Objects (LOs) are currently defined in
a very independent way from each other, which makes it difficult to use them in a real
scenario where students interact and have their own constraints. We present some challenging
features that, at least, should be discussed when elaborating new e-learning standards.Garrido Tejero, A.; Morales, L.; Serina, I. (2011). On the Necessity of Time and Resource Issues to Support Collaboration in E-learning Standards. IEEE Learning Technology Newsletter. 13:39-41. http://hdl.handle.net/10251/35041S39411