We at Pixel Informatics have a consensus that the processes involved are extensions of standard software engineering processes we use popular frameworks like .NET, Laravel, Codeigniter etc which is used include the spiral approach and business-oriented approach to application development.Framework is Important as it Putting resources into the Task not in the Technology.
Just as with a traditional desktop application, web applications have varying levels of risk. A personal home page is much less risky than, for example, a stock trading web site. For some projects security, software bugs, etc. are major issues. If time to market, or technical complexity is a concern, documentation, test planning, change control, requirements analysis, architectural description and formal design and construction practices can mitigate risk.