Скачать или смотреть Definition of a Software Bug

A software bug is an error, flaw, or defect in a computer program that causes it to behave incorrectly, produce unintended results, or fail entirely. Bugs can arise from a variety of sources, such as coding mistakes, poor design decisions, unclear requirements, or unexpected interactions between system components. They can appear in different layers of a software system — including the user interface, application logic, databases, and integrations — and vary in severity from minor visual glitches to critical failures that compromise system functionality or security. The most common types of software bugs include syntax errors, logic errors, runtime errors, integration errors, performance issues, and security vulnerabilities. Some bugs are immediately visible during development, while others only emerge under specific conditions, making thorough testing essential.

Given the complexity of modern software, achieving a completely bug-free product is extremely difficult. To manage this, organizations implement strong quality assurance practices such as code reviews, automated testing, integration testing, and security audits. Even after release, monitoring, user feedback, and regular updates are crucial to fixing newly discovered issues. Effectively addressing software bugs is vital for building reliable, secure, and user-friendly systems, and it plays a major role in maintaining user trust, protecting organizational reputation, and ensuring the long-term success of software products.