In SDLC, CASE tools automate tasks by using software applications. CASE tools are available to simplify analysis, design, project management, data management, and documentation stages. CASE tools can be used in the software development life cycle for many different purposes. Some of these include: Documentation: CASE tools can document a program's design, structure, and internal workings. It allows other developers or maintainers to understand how the program was put together and what kinds of changes need to be made if any alterations are needed. It also helps them identify parts of the code that may need further development or debug. Testing: CASE tools can also be used during testing phases of development because they allow testers to generate test cases automatically based on certain requirements - this saves time by allowing testers to focus on more complex tasks like identifying bugs in the program rather than having to write out every single test case manually. Design: The most popular use for CASE tools is probably during design phases because it allows developers to prototype solutions quickly without having to worry about spending too much time writing code when something else could be done instead. Maintenance: Some organizations even use CASE tools during maintenance phases because they can help developers find code that is difficult to understand, which could lead to bugs or other issues down the road.