Ingo Schuster

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Enterprise application integration (EAI) is a prime objective driving the decision to implement a portal. Portals are often used to integrate data and applications from remote systems and present them in a unified manner to users through a Web-based workspace. Because these back-end systems can contain sensitive business information and functionality (for example, a company's order control system) or private data (e-mail or employee records), access should be well controlled. The basis of access control is authentication, which ensures that the person or program requesting access is identified beyond doubt. It's recommended that back-end systems don't relinquish control of their application security to the portal server, but continue to do their own authentication and authorization. However, users shouldn't be repeatedly prompted to authenticate. This is where sing... (more)