Leading professionals in the field discuss instructional design and systems, computer applications in education and training, research and evaluation in instructional technology, future prospects for instructional technology, and professional development. The book contains six parts. A brief outline of instructional development and educational technology is given in part 1. This is followed by consideration in part 2 of the current state of the art, trends and issues, and challenges in linking the cognitive sciences with the instructional design process. Instructional development, including needs assessment and task analysis procedures are covered in part 3, and part 4 reviews various applications of instructional technology, such as the Internet and distance education. Parts 4 and 5 present an overview of current research and cover certification and professional development in the field. New to this edition are seven chapters that address such current topics as educational systems development and instructional systems development, postmodernism and instructional technology, interactive technologies, the Internet and higher education, qualitative research, and instructional technology and attitude change. (Author/AEF)