Types of Structure Graphic
Structure graphics displayed as a hierarchy are called hierarchy graphics while those displayed as networks are called networks. It is important to distinguish between graphics products on the one hand and type of structure graphic on the other. Some graphics products, such as Netronic Chart can display both hierarchy graphics and structure graphics.
Hierarchy graphics have the following characteristics:
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An object can have only one predecessor
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An object can have one or more successors
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Cycles are not permitted
This means that an object cannot be the successor of one of its own successors.
Networks have the following characteristics:
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An object can have several predecessors
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An object can have one or more successors
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Cycles are permitted