The Evolutionary Development process, being pioneered by Internet development companies, is an iterative approach to development in which customers test an actual version of the software.

This process is called “Evolutionary Development” because systems are evolved from an existing base, rather then written from scratch or transferred from other systems. This is a development process that addresses exact requirements, without the extra baggage.

The process starts with an underlying premise that requirements themselves are in an evolutionary state. When users first envision a potential system they see one picture in their mind, but once they have a chance to interact with the system they discover new and often valuable features that make systems truly useful.

It is the ability to deliver these evolved requirements that often makes the difference between systems that are just ok and the systems that really meet the needs of the user.

This process produces much better requirements matching and understanding than traditional system development and yields great savings in terms of scope creep and project management.

”Key Point of difference between Traditional and Evolutionary development methods is the visibility of functionality throughout development.”