2 v shaped model this model focuses on execution of

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2. V-Shaped Model: This model focuses on execution of processes in a sequential manner, similar to the waterfall model but with more importance placed on testing. Testing procedures are written even before the commencement of writing code. A system plan is generated before starting the development phase. 3. Incremental Model: This life cycle model involves multiple development cycles. The cycles are divided up into smaller iterations. These iterations can be easily managed and go through a set of phases including requirements, design, implementation and testing. A working version of the software is produced during the first iteration, so working software is created early in the development process. References: http://en.wikipedia.org/wiki/Systems_development_life-cycle Before a project begins you must analyze the following: History: Began in the 1960’s The systems life cycle (SLC) is a methodology used to describe the process for building information systems , intended to develop information systems in a very deliberate , structured and methodical way, reiterating each stage of the life cycle . The systems development life cycle, according to Elliott & Strachan & Radford (2004), "originated in the 1960s, to develop large scale functional business systems in an age of large scale business conglomerates . Information systems activities revolved around heavy data processing and number crunching routines". [5]
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