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Software Development and its Testing both are crucial process while creating a high quality mobile or website application. Through this article we will know what is the difference between the life cycles of Development and Testing of Software, and why are they important.

Software Development Life Cycle (SDLC)

It focuses on improving the quality of the system and ultimately producing a high-end product in accordance to the client’s needs, requirements and expectations. Software Development Life Cycle yields faster and efficient results while creating cost effective and easy to maintain solutions.

Software Testing Life Cycle also consists of the stages mentioned below:

It’s Advantages:

SDLC has its own benefits when it comes to making a high-quality Software or Application.

  • All the project information and requirements are gathered from the clients, which is then used to plan ahead what exactly needs to be done and how.
  • Because the project plan is known, SDLC helps in getting a transparency in the project.
  • Software Development Life Cycle helps in tracking the progress with every step.
  • It helps in keeping the development project in control and the pace is maintained.
  • Any unforeseen risks to the project are completely avoided because of earlier planning.
  • You can’t finish the project until all the requirements and goals are achieved.

Software Testing Life Cycle (STLC)

It focuses in identification of any defects or errors that may be present in your product. Through the Software Development Life Cycle, we plan ahead what testing needs to be conducted on the application or software for its betterment.

Software Testing Life Cycle also consists of the stages mentioned below:

It’s Advantages:

STLC is quite essential for effective testing of your Software or Application which ultimately helps in delivering an enhanced quality product.

  • Through Software Testing Life Cycle we can quickly identify any threat in form of errors or bugs at earlier stages itself.
  • Because of early defect detection, the issues are addressed in no time for a bug free application or software.
  • Due to planning and documentation, STLC saves a lot of time.
  • Easy identification of what sort of Testing is required for a specific product.

How does SDLC differ from STLC

Often confused with the other, both of the process are equally important and are entirely different from each other.

  • While SDLC is related to Software Development, STLC is related to Software Testing.
  • Testing can also be included in SDLC besides app development, whereas STLC only focus on Software and App Testing.
  • SDLC is a process done by the product developers and STLC is done by professional QA Testers from Software application Testing company.
  • SDLC aims in developing a good quality app or software and STLC aims in delivering a defect free product.
  • Software Development Life Cycle is done before Software Testing Life Cycle.


Hike QA is one of the top 10 independent Software Testing companies which offers a variety of mobile app and website Testing services which are essential to deliver a bug free product without any errors or loopholes.

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