Is Has
A system might be made aware of artifacts and their contents ThinkingOutLoud.DonaldNoyes.20101214
Because it "Is"
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Discoverable and Reachable
- Most systems have discovery mechanisms which allow it to utilize designed, addressable hardware, users, connections, particular files, specific i/o (Printers, Keyboard, Mouse, touch screens, etc. ) and other resources.
Because it "has"
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Attributes and/or Characteristics
- A system can be designed to discover contents or attributes of an artifact. If they are discovered, the system can be notified or made aware that the artifact "has" it.
- A system can also be made aware of readiness and availability of spaces. Example: An i/o device which "has" space to put or contents ready to get.