Editing Rapid application development (section)

==James Martin approach==
[[File:RADModel.JPG|320px|thumb|right|Phases in the James Martin approach to RAD]]
The James Martin approach to RAD divides the process into four distinct phases:	 
	
# '''Requirements planning phase''' – combines elements of the system planning and systems analysis phases of the [[systems development life cycle]] (SDLC). Users, managers, and IT staff members discuss and agree on [[Business requirements|business needs]], [[Scope (project management)|project scope]], constraints, and system requirements. It ends when the team agrees on the key issues and obtains management authorization to continue.	
# '''User design phase''' – during this phase, users interact with [[Systems analyst|systems analysts]] and develop [[Model|models]] and [[Prototype|prototypes]] that represent all system processes, [[Input (computer science)|inputs]], and [[Output (computing)|outputs]]. The RAD groups or subgroups typically use a combination of [[joint application design]] (JAD) techniques and [[CASE tools]] to translate user needs into working models. ''User design'' is a continuous interactive process that allows users to understand, modify, and eventually approve a working model of the system that meets their needs.	
# '''Construction phase''' – focuses on program and application development task similar to the SDLC. In RAD, however, users continue to participate and can still suggest changes or improvements as actual screens or reports are developed. Its tasks are programming and application development, [[Computer programming|coding]], [[System integration|unit-integration]] and [[system testing]].	
# '''Cutover phase''' – resembles the final tasks in the SDLC implementation phase, including data conversion, testing, changeover to the new system, and user training. Compared with traditional methods, the entire process is compressed. As a result, the new system is built, delivered, and placed in operation much sooner.<ref>{{cite book|last1=Martin|first1=James|title=Rapid Application Development|date=1991|publisher=Macmillan|isbn=0-02-376775-8|pages=[https://archive.org/details/rapidapplication00mart/page/81 81–90]|url=https://archive.org/details/rapidapplication00mart/page/81}}</ref>