The first two papers in this collection introduce both the Research and Development Exchange (RDx) itself and the subsequent contracted papers in this and a companion volume. The first paper discusses the general problems toward which the RDx effort is directed, understandings and assumptions affecting the design of the work, principles guiding…

This volume contains one paper defining the initial operating parameters of the Research and Development Exchange (RDx) and four of a series of papers contracted for the program. The overview paper touches on a variety of topics of continuing concern: the general problems toward which the RDx effort is directed, understandings affecting the design…