Editing Requirements analysis (section)

===Prototypes===

{{main|Software prototyping}}

A prototype is a computer program that exhibits a part of the properties of another computer program, allowing users to visualize an application that has not yet been constructed. A popular form of prototype is a [[mockup]], which helps future users and other stakeholders get an idea of what the system will look like. Prototypes make it easier to make design decisions because aspects of the application can be seen and shared before the application is built. Major improvements in communication between users and developers were often seen with the introduction of prototypes. Early views of applications led to fewer changes later and hence reduced overall costs considerably. {{Citation needed|date=December 2011}}

Prototypes can be flat diagrams (often referred to as [[Wire-frame model|wireframes]]) or working applications using synthesized functionality. Wireframes are made in a variety of graphic design documents, and often remove all color from the design (i.e. use a greyscale color palette) in instances where the final software is expected to have a [[graphic design]] applied to it. This helps to prevent confusion as to whether the prototype represents the final visual look and feel of the application. {{Citation needed|date=December 2011}}