It is a structured framework includes sequential processes that develop information systems. The agile model for SDLC is a more modular and flexible approach. Agile approaches software development in incremental cycles, called sprints. Each sprint is iterative, and code is designed to be modular. An effective (SDLC) system development cycle should result in a high - quality system, which meets customer expectations, completes timely and cost - effective evaluations, and work in the current and planned IT infrastructure effectively and efficiently.
The System Development Life Cycle is a conceptual model that covers policies and procedures for the development or alteration of systems throughout their life cycles.
On the exam, SDLC focuses on security in every phase. This model is broader than many application development models, focusing on the entire system, from selection/development, through operational requirements, to secure disposal. There are many variants of the SDLC, but most follow (or are based on) the National Institute of Standards and Technology (NIST) SDLC process.
In contrast, the agile model for SDLC is a more modular and flexible approach. Agile approaches software development in incremental cycles, called sprints. Each sprint is iterative, and code is designed to be modular.
References:
Eliason, A. L. (1990). Systems development: analysis, design, and implementation. Glenview, Illinois: Scott, Foresman/Little, Brown Higher Education.
Ragunath, P. K., Velmourougan, S., Davachelvan, P., Kayalvizhi, S., & Ravimohan, R. (2010). Evolving a new model (SDLC Model-2010) for software development life cycle (SDLC). International Journal of Computer Science and Network Security, 10(1), 112-119.
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