The Software Testing Life Cycle

The Test Lead
7 min readJan 12, 2022

Testing of any application is a very important process, and if overlooked could lead to the destruction of the application. Poor user experience because of bugs as well could limit the user’s interaction with the application, if not make it completely unusable for them. They may then opt to switch to a rival's application to avoid the headaches which will stop your application from producing revenue.

Imagine if your bank never tested their new withdraw feature before being released. The new feature of withdrawal was supposed to add “.00” to account for the cents when the user enters an amount, however, it instead appended it “00.”. So instead of giving a user $100, it gave them $10,000. Now imagine this bug in a larger bank’s platform that has millions of transactions per second. As you can see within a couple of minutes the bank could lose millions depending on when this error was caught. They then must invest money in trying to get the lost funds back. This is why testing is so important. Proper testing is done through the Software Testing Life Cycle.

Photo by Andrew Measham on Unsplash

Done correctly, the software testing life cycle helps minimize bugs while giving the team extra confidence during a release of a new feature or application. No one part of the cycle is more important than the other which is why it is important to focus on each step before moving on to the next one.

The 6 key phases of the STLC that this article will cover are:

  • Requirements phase
  • Planning phase
  • Test case design and development phase
  • Environment set up phase
  • Execution phase
  • Closure phase
Photo by İrfan Simsar on Unsplash

Requirements Phase

Before any type of development can begin, the requirements of the software must be established. The requirements are what the business expects from the application as a final product and therefore become a guideline. The requirements are usually provided by a product owner in the company, depending on the size of the company.

The Test Lead

SDET at fintech company in NYC. Visit personal page Twitter @juss_bailey Youtube @The Test Lead