A session ID is an identification number with which user requests are assigned to a session. Session IDs are generated by the server and assigned to a session as soon as a user makes a request
. The session ID can be used to access
thedata stored on the server for the last session. This has advantages in online business because the browser
uses the session ID to recognize the goods viewed and placed in the shopping cart during the last session. Theidentification of
the user is ensured by the session ID, which is transmitted to the server with every request. The session IDs can be stored in cookies or in the Uniform Resource Identifier (URI). If there is no cookie yet, then the session IDs are assigned when the website is called up. If the user does not allow cookies, the session ID can be appended to the web page's Internet address.