The idea of providing learners with an e-portfolio serving as an
individual learning room is rightfully considered a significant step
towards the realization of the vision of lifelong learning. According
to the authors, two aspects, which are usually disregarded when it
comes to dealing with technology, presentation of content and software
functionalities, need to be taken into consideration. These aspects are
the possibility of referencing online information and its reliable
availability. This article is intended to present a concept for the
definition of guarantees of existence (GOEs).
