layer cohesion Comparison Table

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layer cohesion comparison table

Subject allow have example require has definition is a kind of simplify

cohesion A measure of the extent to which related aspects of a system are kept together in the same module, and unrelated aspects are kept out software quality

layer cohesion side-effects The set of related services which could form a layer might include:
Services for computation
Services for transmission of messages or data
Services for storage of data
Services for managing security
Services for interacting with users
Services provided by an operating system
Services provided directly by the hardware
that the layers must form a hierarchy - higher layers can access services of lower layers, but it is essential that the lower layers do not access higher layers A form of cohesion in which the facilities for providing or accessing a set of services through an API or hardware interface are kept together. There must also be a strict hierarchy in which higher level layers can access only lower-level layers. In other words, the system is effectively divided into layers cohesion systems

Subject	allow	have example	require	has definition	is a kind of	simplify
cohesion				A measure of the extent to which related aspects of a system are kept together in the same module, and unrelated aspects are kept out	software quality
layer cohesion	side-effects	The set of related services which could form a layer might include: Services for computation Services for transmission of messages or data Services for storage of data Services for managing security Services for interacting with users Services provided by an operating system Services provided directly by the hardware	that the layers must form a hierarchy - higher layers can access services of lower layers, but it is essential that the lower layers do not access higher layers	A form of cohesion in which the facilities for providing or accessing a set of services through an API or hardware interface are kept together. There must also be a strict hierarchy in which higher level layers can access only lower-level layers. In other words, the system is effectively divided into layers	cohesion	systems

Next cohesion: procedural cohesion Up: cohesion Previous cohesion: functional cohesion