Because it is a software.......
Spiral model is called the meta model of all s/w life cycle.
There are number of SDLC models in software engineering. Using life cycle model we can divide the work in different phases thus making it easy and convenient .
Software life cycle model is a descriptive and digramatic representation of the software life cycle.
It means different stages of software life cycle.
It consists of different stages of software life cycle.
Waterfall model is the best software life cycle model.
Software development life cycle models show the ways to navigate through the complex process of software building. A project's quality, timeframes, budget, and ability to meet the stakeholders' expectations largely depend on the chosen model.
In traditional software development method there were only two steps that is build code and fix. This was not an efficient method so new life cycle models were introduced.
In software engineering, the software development life cycle (SDLC), is a process for planning, creating, testing, and deploying an information system. The systems development life cycle concept applies to a range of hardware and software configurations, as a system can be composed of hardware only, software only, or a combination of both. There are usually six stages in this cycle: requirement analysis, design, development and testing, implementation, documentation, and evaluation.
when the software is pregnant
Explain the origin of the defect distribution in a typical software development life cycle.?
Software development life cycle