History
SADT has been developed and field-tested during the period of 1969 to 1973 by Douglas T. Ross and SofTech, Inc.. The methodology was used in the MIT Automatic Programming Tool (APT) project. It received extensive use starting in 1973 by the US Air Force Integrated Computer Aided Manufacturing program.
According to Levitt (2000) "it is part of a series of structured methods, that represent a collection of analysis, design, and programming techniques that were developed in response to the problems facing the software world from the 1960s to the 1980s. In this timeframe most commercial programming was done in COBOL and Fortran, then C and BASIC. There was little guidance on “good” design and programming techniques, and there were no standard techniques for documenting requirements and designs. Systems where getting larger and more complex, and the information system development became harder and harder to do so. As a way to help manage large and complex software. Since the end 1960 multiple Structured Methods emerged".
- Structured programming in circa 1967 with Edsger W. Dijkstra.
- Structured Design around 1975 with Larry Constantine and Ed Yourdon
- Structured Analysis in circa 1978 with Tom DeMarco, Yourdon, Gane & Sarson, McMenamin & Palmer.
- Information Engineering in circa 1990 with James Martin.
In 1981 the IDEF0 formalism was published, based on SADT.
Read more about this topic: Structured Analysis And Design Technique
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