Service-oriented architecture (SOA) is a software design approach that focuses on organizing software components as services that can be accessed and used over a network. These services are typically designed to perform specific functions or tasks and can be combined and orchestrated to create larger and more complex applications. SOA promotes modularity, reusability, and interoperability by breaking down applications into smaller, more manageable services that can be easily shared and accessed by other applications. These services are typically designed to be platform-independent and can be implemented using various technologies and programming languages. Overall, SOA aims to improve the flexibility, scalability, and agility of software systems by promoting a more modular and service-oriented approach to development and integration. This can help organizations adapt and respond more quickly to changing business requirements and technology trends.