A Commonplace

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7/10/2017

Mon, 15 Sep 2014 11:36:50

Poppendieck On Top Down Design

It was once thought that good programmers develop software though a structured, top-down approach. In 1990, Raymonde Guindon evaluated the paradigm that top-down decomposition is the best approach to software design. She reported on research in which experienced designers were asked to design an elevator control system and to describe each step of their thought process to researchers. She found that when experienced designers are presented with ill-defined problems, their design activities are not at all top-down. They move repeatedly between scenario examination, requirements elucidation, high-level solution segmentation, and low-level design of difficult elements.

Mary Poppendieck - Lean Software Development: An Agile Toolkit