Product Life Cycle
Regardless of the methodology used, the product life cycle always consists of at least three stages:
- Design – including both the business and technical specification
- Coding – the development itself
- Testing – the quality management
Each stage ideally takes 30% of the total time, with the remaining 10% in reserve.
The UML sequence diagram of interaction between these groups may look like:
At each stage a different group plays a key role, however each type of role must be involved throughout the whole development process:
- Analysts, after completing the business specification, manage the changing business situation to minimize the possibility of change over time. They also support both programmers and testers during the whole development process to ensure that the final product fulfills the business needs specified at the start. The process ideally puts business analysts as the key players during final delivery of the solution to the customer, as they are best placed to provide the best business layer.
- Programmers do the technical specification during the design phase, which is why they are called programmers/designers, and during testing time they fix bugs.
- Testers complete the test scenarios during the design phase, and evaluate them during the coding phase
Read more about this topic: Software House
Famous quotes containing the words product, life and/or cycle:
“Perhaps I am still very much of an American. That is to say, naïve, optimistic, gullible.... In the eyes of a European, what am I but an American to the core, an American who exposes his Americanism like a sore. Like it or not, I am a product of this land of plenty, a believer in superabundance, a believer in miracles.”
—Henry Miller (1891–1980)
“The future of humanity is uncertain, even in the most prosperous countries, and the quality of life deteriorates; and yet I believe that what is being discovered about the infinitely large and infinitely small is sufficient to absolve this end of the century and millennium. What a very few are acquiring in knowledge of the physical world will perhaps cause this period not to be judged as a pure return of barbarism.”
—Primo Levi (1919–1987)
“The Buddha, the Godhead, resides quite as comfortably in the circuits of a digital computer or the gears of a cycle transmission as he does at the top of a mountain or in the petals of a flower.”
—Robert M. Pirsig (b. 1928)