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Audra Kresinske is an educator with over 7 years experience teaching English and employment readiness skills.
The software development lifecycle has several different phases. It begins with a statement of requirements and includes design, build, testing, and release. Software development projects can cycle through each of these phases repeatedly before releasing the product into production. The quality assurance process occurs throughout each phase to ensure the product is being developed correctly and to identify any problems before they impact the later stages of development. Each product has a number that identifies it. This number changes as the product moves through the development lifecycle.

Audra Kresinske is an educator with over 7 years experience teaching English and employment readiness skills.
"Software development projects have unique identifiers as the software moves through the development lifecycle. These identifiers evolve at each stage of the development process. Toward the end of the cycle, the software is assigned a build number given to installable software that is handed off to the final testing team by the development team. Once the final testing is complete, a release number is assigned to production software that is handed over to the customer."

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Written by William Swansen
30 Questions & Answers • Palo Alto Networks, Inc.

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