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ardiadminguide:relationships [2016/08/01 00:05] optrix |
ardiadminguide:relationships [2017/12/10 23:01] (current) optrix |
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| ===Hierarchies=== | ===Hierarchies=== | ||
| - | As well as logical and physical relationships, | + | A special note about hierarchies - an asset may only ever be attached (related) to a hierarchy at **one point**. An asset can't be in two locations, two places in the org chart etc. |
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| + | If you have a situation where you would like to place an asset in more than one hierarchy, consider using [[types|types]] instead, as these can fulfill a similar goal. | ||
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| + | ===Directional Names=== | ||
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| + | Relationships have directional names. As well as the main name that describes the relationship as a whole (ie. Water Supply or Mains Power), they also have a description that applies when the relationship is going upstream (from child to parent) and another description that applies when it is going downstream (from parent to child). | ||
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| + | For example, the relationship 'Mains Power' is a physical relationship describing the power coming from the power grid. | ||
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| + | It has a relationship name of 'Mains Power', but it's upstream name is 'Powered By' and it's downstream name is 'Powers'. | ||
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| + | These directional names are used when trying to describe these relationships in plain language. Rather than saying 'The light bulb has a downstream Mains Power relationship with the switch', we instead say 'The light bulb is powered by the switch'. And vice-versa, 'The switch powers the light bulb'. | ||
| ===Avoiding Cycles=== | ===Avoiding Cycles=== | ||