What is the commonality between a web service and a web server?

• Both participate in processing requests from clients (web browsers).
• Both use the HTTP protocol.
• A web service can be hosted on a web server.
• The web server provides infrastructure for web services (access to files, request processing, etc.).
• Interaction between the client and the web service is usually mediated by the web server.

Example: The client sends an HTTP request to the web server. The web server receives the request and forwards it to the appropriate web service for processing. The web service performs its logic and returns a response to the web server, which then sends it back to the client.