CWA Web System

Endpoints in Web Systems

• provide access to functional units

• represent data resources

• operate via messages according to spefic web protocols

• are connected according to a wiring model

The Process Layer of a Web System is derived from business processes and defines the invocation of endpoints.

• True

• False

One process unit may involve invocation of several service layer endpoints

• True

• False

State in Web Systems

• is handled by the HTTP protocol

• can be stored in cookies

• can be stored in databases with session identifiers contained in HTTP requests

• is not required

Federated Web Systems

• combine systems by potentially different organizations

• require consideration of identity management and trust relationships

• require OAuth

• allow for processes that involve potentially unknown partners