Unformatted text preview: with a black diamond shape 8.) Control flag – small arrow with a solid black circle on the end 9.) Passed data & Returned data – small arrow with an ‘open’ circle at the end of the arrow 3 Marks: 5 Explain module coupling and module cohesion. Why are these concepts important? Module Coupling: The manner in which modules relate to each other Module Cohesion: A measure of the internal strength of a module These concepts are important in order to control quality. 4 Marks: 5 Describe how structure charts for three-layer architecture are different from those for all-encompassing programs that execute on a single computer system. Structure charts for 3-layer architecture are different because the software may execute on different machines connected via different protocols & deployment environments....
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This note was uploaded on 02/26/2012 for the course MMIS 530 taught by Professor Jayashbaugh during the Spring '12 term at Friends University.
- Spring '12