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Related to system design: System Analysis and Design
system design[′sis·təm di‚zīn]
Determination in detail of the exact operational requirements of a system, resolution of these into file structures and input/output formats, and relation of each to management tasks and information requirements.
A technique of constructing a system that performs in a specified manner, making use of available components. Also known as synthesis.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
information systemA business application in the computer. An information system comprises the database, application programs and manual and machine procedures. It also encompasses the computer systems that do the processing. See Information Systems.
The database stores the subjects of the business (employees, customers, vendors, products) and the transactions (orders, purchases, employee and product updates). The application programs provide the data entry, updating, query and report processing.
The manual procedures document how data are obtained for input and how the system's output is distributed. Machine procedures instruct the computer how to perform scheduled activities, in which the output of one program is automatically fed into another.
The daily work is the online, interactive processing of the business transactions and periodic updating of employee, customer, inventory and vendor files (master files). See transaction processing.
At the end of the day or other period, it may be necessary to run programs that update files that were not updated on a daily basis. In years past, batch processing was routinely used to print the endless reports every organization required. See batch processing.
systems analysis & designThe examination of a problem and the creation of its solution. Systems analysis is effective when all sides of the problem are reviewed. Systems design is most effective when more than one solution can be proposed. The plans for the care and feeding of a new system are as important as the problems they solve. See systems analyst, system development life cycle, information system and Systemantics.
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