The process of altering or creating systems and the methodologies which people use to develop systems is known as the whole cycle of Software Development Life Cycle. The information systems and the computer are the two products to which this concept of a software development life cycle can be applied to. Many kinds of software development methodologies are underpinned by the SDLC in software engineering. The framework used for controlling and planning an information system is formed by these methodologies.
The logical process used to develop a system based on information including the training, requirements and validation and ownership is the Systems Development Life Cycle. The customer’s expectations are satisfied by the use of any Software Development life cycle. Advantages of using the SDLC also include efficient work, planned information infrastructure and timely completion. Moreover it is not expensive to maintain and also cost effective while enhancing any features.
The computer systems link the systems supplied by software vendors of various places, resulting into the system becoming a bit complex. The SDLC or the Systems Development Life Cycle has been created specifically to manage this level of convolution.
The best description adjectives for the Software Development life cycle can be ‘agile’ and ‘super efficient’. Light weighted processes allow the changes to take place along the cycle of development. XP and Scrum are the examples of methodologies using light weight processing. Some methodologies focus only on improving products by multiple iterations and focus on limited scopes. To cite some examples, Dynamic Systems Development method or the Rational Unified Process is used in a very narrow or limited way.
Traditional process is the term given to the SDLC by a few iterative proponents. One should understand that the software development life cycle is a term used for the methodologies of design, release of software and implementation.
A project in a project management is dually defined as either a Project Life Circle or as a Software Development Life Cycle. Encompassing all the activities in of the specific project, the projects requirements are realized by the systems development life cycle.
The process of describing, the building of I.T systems intended to develop information systems in a methodical way, so as to enhance productivity is known as SDLC. The origin of this concept goes back to the 1960’s where large scale businesses dominated the global business scenario. Number crunching routines and data processing on a large scale was carried out by the large corporations.
Several systems development frameworks have been partly based on SDLC like Structured Systems Analysis and Design Method (SSADM) but according to Elliott (2004), "the traditional life cycle approaches to systems development have been increasingly replaced with alternative approaches and frameworks, which attempted to overcome some of the inherent deficiencies of the traditional SDLC".
There are various phases when it comes to Software development Life Cycles. Planning, design, analysis and implementation are among the four pillars on which the phases of the development of SLDC stand. Many system development life cycles models exist today. The waterfall model was the name of one of the oldest model.
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