IE 2060 Lecture : Lecture13 Ch08 Systems Development
Document Summary
Everything outside the system boundary with which the system must interact. Defines the limits or scope of the system. A system take inputs (data, information, materials, power, etc. ) from it"s environment in order to function, and produces output which achieves it"s purpose. Typically designed so that one component can be changed without requiring changes in other components, so long as interface rules are maintained. The relationship of one components inputs and outputs to other components in the system. The physical point at which two or more components in a system interact. Rules for how this interaction occurs must be carefully specified and designed. The interface itself may have some critical functions. An information system is a set of interrelated components that: Disseminate information in order to support business processes. Computer software (database management servers & application programs) Networks & telecommunications (voice, video, and data transmission) I/o technology (bar coding, rfid, scanning, printers, displays, etc. )
