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The Global Insight

What is the difference between software development life cycle and system development life cycle?

Author

Robert Miller

Updated on February 27, 2026

The software development life cycle focuses exclusively on software components, such as development planning, technical architecture, software quality testing and the actual deployment of the software. Put simply, the system development life cycle is more holistic and comprehensive.

Is STLC is a part of SDLC?

STLC is part of SDLC. It can be said that STLC is a subset of the SDLC set. STLC is limited to the testing phase where quality of software or product ensures. SDLC has vast and vital role in complete development of a software or product.

What are the 5 stages of STLC?

Below are the phases of STLC:

  • Requirements phase.
  • Planning Phase.
  • Analysis phase.
  • Design Phase.
  • Implementation Phase.
  • Execution Phase.
  • Conclusion Phase.
  • Closure Phase.

What is difference between SDLC and agile?

Agile is a methodology following an iterative approach used for project management purposes. SDLC is a process of design and development of a product or service. Agile constitutes of different phases.

What is V model SDLC?

The V-model is a type of SDLC model where process executes in a sequential manner in V-shape. It is also known as Verification and Validation model. It is based on the association of a testing phase for each corresponding development stage. Development of each step directly associated with the testing phase.

Is Agile a life cycle?

It contains six phases: concept, inception, iteration, release, maintenance, and retirement. The Agile life cycle will vary slightly depending on the project management methodology chosen by a team. However, the goal of all software development teams is the same: to deliver working software to users on time.

Is SDLC or Agile better?

SDLC provides a systematic approach to building software towards successful product deliverables within the timelines, whereas Agile has faster development approach and speeds up the development process in an effective and efficient manner.