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== Architecture of Interoperable Information Systems
An Architecture of interoperable information systems describes, how interoperating information systems can be efficiently designed and implemented. Since the invention of information system, concepts were created to describe how information systems can be connected to each other in an efficient manner. However, in the context of enterprise information systems, in 2010 also a concept named Architecture of interoperable information systems was published.
Architecture of Information Systems
An interface represents the point of interconnection between two systems or subsystems. Since collaborative business always comprises interactions between organizational systems (e. g. enterprises or departments), interfaces are an essential element in the development of collaborative business processes. In the context of organizations working together, interface descriptions should describe those characteristics of a system that are relevant for adjacent systems. While interfaces in information systems formerly concentrated on technical aspects, e.g. by describing Application Programming Interfaces, recent developments like Service-oriented Architecture shifted the attention to conceptual interfaces aiming at a business-level description of services and organizational boundaries.