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This article provides guidance on the following topics related to the management of System Element Types.
System Element Type Categories
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| title | More about System Element Types Categories |
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Reference the grid below for attributes and other details specific to each System Element Type Category.
| System Element Category |
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| Characteristic | System | Device | Component | Link | Termination | Port | Notes |
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| Must be associated with a "parent" system element | No | No | Yes | Yes | Yes | Yes | Only Systems and Devices may be located at the top of the system configuration hierarchy. A Component may only appear as a "child" element of a Device. A Termination can only appear as a "child" element of a physical Link. | | Supported classes of "child" system elements | System, Device, Link | Device, Component | Component | Links, Termination | n/a | n/a | Devices represent functionally significant elements of systems ("functionally significant" in the RCM sense). Most of the maintenance activities are performed at the Device level. | Allows Links as Children | Yes | No | No | Yes | No | No | Parent should not be confused with being the designated ENDPOINT to the link. | | Optional | Required, see notes | Required, same as parent | Optional | No | Required, same as parent | A Component is always collocated with its parent Device or Component. Things installed at different locations are difference Devices. A Device may be located anywhere, if it is standalone (i.e., not a child of another Device). | | Option to directly associate with a material (physical asset) | No | Yes | Yes, optional | Yes | No | No | Systems (and subsystems) are collections of Devices. So, a System cannot be associated with a particular Asset. Devices and Components, on the other hand, may be directly associated with an Asset installed against that System Element. | | May be associated with a Case (service request) | Yes | Yes | Yes | Yes | Yes | Yes | Important: A Case may be opened against a System Element of any category. For example, it is possible to open an Issue for an entire CCTV system. | | Displayed on the System Elements by Location browser | No | Yes | Yes | No | No | | Since a System (or subsystem) is a logical grouping of System Elements and is not necessarily constrained to a Location, Systems will not be shown when browsing System Elements by Location. |
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| title | System Element Type Category Icons |
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System Element Type Categories define the relationship between System Elements and inform the System Hierarchy. |
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assist with visual representation of |
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each System Element Type Categories.  Image Added
These icons are |
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InfraLink's Device/Equipment List and |
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Creating System Element Types
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