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May 14, 2002 (Computerworld) --
Listen to Computerworld's TechCast: SDLC. Podcast duration: 6 minutes.
Once upon a time, software development consisted of a programmer writing code to solve a problem or automate a procedure. Nowadays, systems are so big and complex that teams of architects, analysts, programmers, testers and users must work together to create the millions of lines of custom-written code that drive our enterprises.
To manage this, a number of system development life cycle (SDLC) models have been created: waterfall, fountain, spiral, build and fix, rapid prototyping, incremental, and synchronize and stabilize.
The oldest of these, and the best known, is the waterfall: a sequence of stages in which the output of each stage becomes the input for the next. These stages can be characterized and divided up in different ways, including the following:
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| Independent Report by Forrester Research, Courtesy of MKS: "Selecting the Right Requirements Management Tool — Or Maybe None Whatsoever" Many of today's requirements management tool purchases are misguided: Application development and program management professionals often buy requirements management tools for the wrong reasons and select tools that are out of line with their needs. In this independent report, Forrester advises app dev organizations to be realistic about the problems that a requirements management tool can address, the level of tooling that they require, and their ability to build and maintain tool integrations.
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