In the current times, the technical and vocational training corporation (TVTC) is facing their toughest problem in the form of inefficient information management. In relation to this, the OBE application calls for providing several portfolios to students, to produce daily information, with records documented for evidence of a transaction. The ICT dynamic development has brought about the shift of the TVTC operations to electronic-based from manual, in terms of handling works that relate to information. One of the systems that are of great consideration in this regard is the Electronic Portfolio Management System (EPMS). Nevertheless, such system has not extensively adopted as expected owing to the users' rejection of its use. In the present paper, the factors affecting the decision of adoption/rejection of EPMS are highlighted. The study is qualitative in nature and entails a critical review of the related literature concerning the topic, backed by the results of conducted interviews. EPMS experts hailing from high reputed institutions were interviewed, and 11 factors were focused on in light of their effect on the decision to adopt/reject EPMS as argued by the Technological Adoption Theories and literature review. All the factors were validated and placed in ranks by the experts. From the results, a novel conceptual model of EPMS adoption was developed for Saudi TVTC to bring about technology adoption and improved results.