This volume describes the application of data processing systems to produce data in support of flight testing. The generalized techniques are appropriate to large test centers which support multiple testing programs simultaneously. The concepts, however, are as equally valid for a single test program using a dedicated data processing system. Starting from a discussion of data sources, the text proceeds to a review of the considerations required prior to data processing. A simplified discussion of two major components of data processing - hardware and software - follows. The volume then looks at the third major component of data processing - the people to make it work. The data processing in support of flight testing is described according to processing functions. An attempt is then made to identify potential problem areas. (Author).