For example, from Barker and Banerji’s (1995) point of view, an EPSS has four functional levels, which should be brought together:[1] In Electronic Performance Support Systems, Gloria Gery defined EPSS as:[2] an integrated electronic environment that is available to and easily accessible by each employee and is structured to provide immediate, individualized on-line access to the full range of information, software, guidance, advice and assistance, data, images, tools, and assessment and monitoring systems to permit job performance with minimal support and intervention by others.
Also, in 1991, Barry Raybould gave a shorter definition:[3] a computer-based system that improves worker productivity by providing on-the-job access to integrated information, advice, and learning experiences.
With online help, cross-referencing is often not available and the information provided is limited and rarely combined with procedures or complex tasks.
This concept was originated by Raybould (1997)[5] who separates out the repository, delivery and infrastructure aspects of the EPSS from the knowledge base it contains.
This trend will extend itself to the point that training, as a distinct function, will no longer be the primary learning vehicle for many types of jobs.