Description: Input testing involves validating input data to ensure that the system processes it correctly. This process is fundamental in software development as it ensures that the data entering the system is accurate, complete, and in the correct format. Input testing helps identify errors in the early stages of the software development lifecycle, which can prevent more serious issues in later phases. These tests may include verifying data types, value ranges, specific formats, and the presence of mandatory fields. Additionally, they are essential to ensure that the system meets user requirements and design specifications. Automating these tests allows for faster and more efficient execution, which is especially valuable in development environments where changes are frequent. In summary, input testing is a critical part of software quality assurance, contributing to the reliability and robustness of the final system.