This document discusses the development of an ISO technical report on e-portfolios for learning. It provides background on the consensus to develop the report in 2009-2010. The challenges of developing international standards are acknowledged. The report aims to provide guidance by 2012 on interoperability rather than prescriptive specifications. It defines e-portfolios and their uses from learner and assessor perspectives. Stakeholder use cases informed the development of categories and elements for e-portfolio composition. These include Identification, Synopsis, Education, Outcomes, Capability, Career, and Experience.