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{{Redirect|SADT|another use|Self accelerating decomposition temperature}}
{{Use dmy dates|date=December 2020}}
[[File:SADT.svg|thumb|240px|right|SADT basis element.]]
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==History==
SADT was developed and field-tested during the period of 1969 to 1973 by [[Douglas T. Ross]] and [[SofTech, Inc.]]
According to Levitt (2000) SADT 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 (programming language)|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 were 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.<ref name="DL00">Dave Levitt (2000):[http://faculty.inverhills.edu/dlevitt/CS%202000%20(FP)/Introduction%20to%20Structured%20Analysis%20and%20Design.pdf Introduction to Structured Analysis and Design] {{Webarchive|url=https://web.archive.org/web/20060907132222/http://faculty.inverhills.edu/dlevitt/CS%202000%20%28FP%29/Introduction%20to%20Structured%20Analysis%20and%20Design.pdf |date=7 September 2006 }}. Retrieved 21 September 2008.</ref>
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