The importance of test automation in technology companies and an example of test automation

Applications developed by technology companies and widely used by people around the world have become an indispensable part of our daily lives. Considering the focus of today's technologies, it is evident that these applications are designed to simplify users' lives and save time. Particularly in large-scale industries, where software technologies are advancing rapidly, applications are built with multi-layered and functional architectures to support thousands of simultaneous user sessions. These large-scale systems often include commercial and governmental organizations, web services related to card transactions, and online connections. Applications are governed by complex workflows and detailed business rules, frequently handling real-time and high-volume transactions. Given the high number of operations performed per second, security becomes critically important, especially when monetary values are involved. Considering all these dynamics, technology firms are required to ensure the highest quality in their products, maximize customer satisfaction, and maintain optimal software performance. In this context, companies place significant emphasis on software testing throughout the lifecycle of an application, from the planning phase to deployment and maintaining continuity in its use. This thesis focuses on how technology companies approach software testing processes. Specifically, it examines the testing and test automation projects conducted to improve software quality, identify errors made by developers during the development phase, meet user requirements, and ultimately ensure customer satisfaction. In the final part of this study, a test automation example is developed to demonstrate how companies establish and manage their software testing processes. This example aims to provide a concrete illustration of the contributions of test automation to business processes.