A comprehensive system for transformational grammar has been designed and is being implemented on the IBM 360/67 computer. The system deals with the transformational model of syntax, along the lines of Chomsky's "Aspects of the Theory of Syntax." The major innovations include a full and formal description of the syntax of a transformational grammar, a directed random phrase structure generator, a lexical insertion algorithm, and a simple problem-oriented programming language in which the algorithm for application of transformations can be expressed. In this paper the system is presented as a whole; the philosophy underlying the development is first discussed, followed by an outline of the system and a discussion of its special features. References are given to papers which consider particular aspects of the system in detail. See related document AL 002 221. (Author/FWB)