Description: Service Invocation refers to the process by which a client application requests the execution of a specific function or service provided by a server. This mechanism is fundamental in distributed systems, where multiple computers work together to provide services to users. Service invocation allows applications to communicate efficiently and effectively, facilitating the execution of tasks that may require resources not locally available on the client. This process may involve data transmission over networks, the use of communication protocols, and error management, making it a critical component for interoperability and scalability of distributed applications. Additionally, service invocation can be synchronous, where the client waits for a response from the server before proceeding, or asynchronous, where the client can continue executing other tasks while waiting for the response. This flexibility is essential for optimizing performance and user experience in distributed environments.