One of the earliest approaches to software development is the waterfall approach.A paper published by Winston W.Royce in the 1970s described a sequential
software development model containing a number of phases, each of which must be completed before the next begins. Figure shows the classic interpretation of the phases in a waterfall project.From a quality perspective,the waterfall approach has been often criticized because testing begins late in the project;as a consequence,a high degree of project risk(that is,failure of the software to meet customer expectations, to be delivered with acceptable levels of defects,or to perform adequately) is retained until late into the project.With the resultant reworking and retesting caused by the late detection of defects,waterfall projects were also likely to incur additional effort,miss their delivery dates,and exceed their budgets.
The waterfall approach has also been criticized for its lack of responsiveness to customer requests for changes to the system being developed. Historically, it was typical for all of the requirements to be captured at the start of the project and to be set in stone throughout the rest of the development. A frequent result of this approach was that by the time the software had been delivered (sometimes months or even years later),it no longer matched the needs of the customer, which had almost certainly changed by then.Because of increasing dissatisfaction with the rigid structure of waterfall projects, other solutions were investigated that would be more flexible in terms of addressing changing requirements.
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Old-school Development And Testing
Agile Development And Testing
From Waterfall To Evolutionary Development And Test
How To Test A System That Is Never Finished
Implementing An Agile Testing Approach
Agile Testing In A Remote Or Virtual Desktop Environment
Testing A Derivatives Trading System In An Uncooperative Environment
A Mixed Approach To System Development And Testing: Parallel Agile And Waterfall Approach Streams Within A Single Project
Agile Migration And Testing Of A Large-scale Financial System
Agile Testing With Mock Objects: A Cast-based Approach
Agile Testing – Learning From Your Own Mistakes
Agile: The Emperor’s New Test Plan?
The Power Of Continuous Integration Builds And Agile Deve- Lopment
The Payoffs And Perils Of Offshored Agile Projects
The Basic Rules Of Quality And Management Still Apply To Agile
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Agile Success Through Test Automation: An Extreme Approach
Talking, Saying, And Listening: Communication In Agile Teams
Very-small-scale Agile Development And Testing Of A Wiki
Agile Special Tactics: Soa Projects
The Agile Test-driven Methodology Experiment
When Is A Scrum Not A Scrum?
Analysis Of The Case Studies
My Agile Process
The Roll-out And Adoption Of My Agile Process
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