Ubiquitous learning can be defined as an everyday learning environment that is supported by mobile and embedded computers and wireless networks in our everyday life (Ogata et al. 2009). It is aimed to provide learners with content and interaction anytime and anywhere (Hwang et al. 2008).

One of the ubiquitous learning concepts is an ePortfolio.

An ePortfolio is a collection of work (evidence) in an electronic format that showcases learning over time. When you think about your ePortfolio and the types of evidence that it contains, it is important to think carefully about its purpose and intended audience.

An ePortfolio may contain all or some of the following:

Files of various formats (text, pictures, video, etc.)
Evidence related to courses taken, programs of study, etc.
Writing samples (which might include several drafts to show development and improvement)
Projects prepared for class or extracurricular activities
Evidence of creativity and performance
Evidence of extracurricular or co-curricular activities, including examples of leadership
Evaluations, analysis and recommendations

The use of portfolios played a substantive role in the assessment of our general education competencies. Using both formative and summative assessments feedback was provided to colleges, departments and instructors on the quality of evidence students used in their portfolios to demonstrate our general education competencies.

source: https://www.clemson.edu/academics/programs/eportfolio/information.html