This work focuses on the characterization of adult lifelong learners’ Personal Learning Environments (PLEs) by implicit and explicit tools of personalization. It aims aims toward creating a system for the development of a learning path for the characterisation of PLE for adult life learners. The synergy of formal and informal learning in the dynamic construction of a lifelong learner’s PLE is fully explored, with the recognition that the majority of learning, especially for life long learners, occurs outside traditional learning formats.