lecture29-apr13 - Brooks, 1986 easier to build, easier to...

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Unformatted text preview: Brooks, 1986 easier to build, easier to change, easier to fix ... What's inside?? How big is it?? In a well designed program/system the modules should have the following two properties so that they are functionally independent 1.  HIGH COHESION - the degree to which a module performs one and only one function 2.  LOW COUPLING - the degree to which a module is "connected" to the other modules in the system. MODULE G. Myers implemented as a data structure (type) implemented with a "knowledge" of the object that is associated with enter algorithm open walk to door; reach for knob; open door; walk through; close door. repeat until door opens turn knob clockwise; if knob doesn't turn, then take key out; find correct key; insert in lock; endif pull/push door move out of way; end repeat simultaneouly C o1 o2 o3 o4 ...
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This note was uploaded on 01/24/2010 for the course EE 312 taught by Professor Shafer during the Spring '08 term at University of Texas at Austin.

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lecture29-apr13 - Brooks, 1986 easier to build, easier to...

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