Application formation has many approaches. One of them is the production of high quality and maintainable code that results from the use of Test-Driven Development (TDD).TDD approach has various long-term benefits that attract both consumers and developers. Developers build maintainable code and eliminate bugs by implementing a TDD methodology. Introduction to test-driven development Test-driven Development is a method in software development that helps developers to build clear requirements on how to write and execute their code. Essentially, when a programmer writes a practical test before creating a code, TDD is a procedure. This method prohibits developers from writing excessive code that does not comply with the test given. It is a must to pass the unit test after the code is written. But even if it passes the test, code also needs polishing. TDD takes time at the initial development level. Yet over time, TDD reduces the resource requirements effectively. Advantages of test-driven development Helps You to Achieve a Maintainable Codebase Helps You Prevent Bugs Helps You in Cutting Development Costs Better program design and higher code quality Detailed project documentation TDD reduces the time required for the development Code flexibility With the help of TDD, you will get a reliable solution Identify the error/problem quickly Conclusion Test-driven architecture yields the best performance when the code is strengthened continuously. The advantages of test-driven development are more than just simple validation of correctness; it can also drive the design of a program. Because of the test modules incorporated into the continuous development integration model, companies using a TDD approach can easily make improvements to their applications.TDD leads to more modularized, flexible & extensible code. We at softieons technology work on web development, mobile app development and help our customers according to their business requirements.