Entity

Definition:

An Entity is real in the sense that it has provable existence, and it has performance and Cost Attributes.

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Detailing

An Entity can be natural or human made. It can be Conceptual or physical.

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Illustrations

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Type

Systems-Engineering-Concept

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Examples

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Notes

1. an Entity is not necessarily a physical object. It can be a Policy, a law, a contractual Condition, a motivator. These are still real for people. They have performance and Cost Attributes.
2. designers choose entities because of their Attributes. The description of the Entity is called a Design-Specification or an architectural specification, usually shortened to a design or the Architecture.
3. but if all specifications or descriptions of entities were burned, the entities themselves would continue to exist.
4. I am not sure if all entities have a Function, but it seems that they do. The Function is what the Entity does.
5. The distinction between an Entity and a System is that entities must have real existence and Systems can be imagined or Conceptual in nature.

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Keyed-Icons

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Drawn-Icons

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Related-Concepts

Attribute *003
System Planguage *145
Function *069
Design *047

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History-of-Concept

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This Concept entered by Lisa.