This five-part report synthesizes current theory and research on the adult as learner and generates implications for design and delivery of learning systems, particularly those involving computer-mediated technology and related software. "Adult Learning in Context" (Sean Courtney, Jiali Luo) examines the current situation of the adult learner, with special attention on increased computer use by the adult learning population. "Characteristics of Adults as Learners" (Courtney, Luo) focuses on these six major dimensions that constitute learning: knowledge construction and conceptual change; prior knowledge and experience; motivation, self, and community; metacognition; authentic tasks and environments; and collaboration and self direction. "How Technology Impacts the Learning Process" (Courtney, Luo) focuses on computer-mediated communications systems. "Summary and Conclusions" (Courtney, Luo) presents two sets of implications for technology-based learning system design: those based on characteristics of the learning process and those based on user experiences. "Web Access for Adult Learners with Special Needs" (Stanley Vasa, Virginia Muggy) shares knowledge of adult learners with special needs and characteristics associated with disability categories and related Web design considerations. (Appendixes include 175 references; papers on the learner-centered principle and user interface design for older adults; and descriptions of 10 web sites used in synthesis of recommended Web design guidelines.) (YLB)