During the transfer from conceptualizations to practical programs of educational innovation, difficulties, in the form of failure to close modular gaps, often occur. The author has constructed a functional model of research and systems development based upon logical sequencing and tight-line modular linkage between task assignment and…

The concept of development in education is examined, being defined as "the systematic use of scientific knowledge directed toward the production of useful materials, devices, systems, or methods, including design and development of prototypes and processes." Historical antecedents of present development are briefly discussed. Contrast is made…