IT Project Management

  10,425,735 members (71,728 online)     Sign in       Articles » Development Lifecycle » Design and Architecture » Methodologies   Article Browse Code Bugs / Suggestions Stats Revisions (4) Alternatives Comments & Discussions (5) Agile and Other Development Methods By Vinay Krishna , 6 Jul 2010     2.50 ( 9 votes) Rate this: vote 1 vote 2 vote 3 vote 4 vot

Spiral Model – What is SDLC Spiral Model? What is  SDLC SPIRAL MODEL? Introduction : Spiral model is a combination of sequential and prototype model. This model is best used for large projects which involves continuous enhancements. There are specific activities which are done in one iteration (spiral) where the output is a small prototype of the large software. The same activities are then repeated for all the spirals till the entire software is build. To explain in simpler terms, the steps involved in spiral model are: A spiral model has 4 phases described below: Planning phase Risk analysis phase Engineering phase Evaluation phase. Activities which are performed in the spiral model phases are shown below: Phase Name Activities performed Deliverables / Output Planning -Requirements are studied and gathered. - Feasibility study  - Reviews and walkthroughs to streamline the requirements Requirements understanding document Finalized list of requirements.