User Defined Hierarchies

The database schemas in AVEVA E3D™ are fixed by AVEVA.

You may, however, customize the allowed hierarchy using UDETS (User Defined Element Types).

A UDET must be based on an existing system type. For example, you may define a UDET :PUMP which is based on an EQUIPMENT. By default, a UDET will have the same allowed members and allowed owners as a base type. This can be customized to be a subset of that allowed on the base type, for example, you might decide that SUBE are not allowed under a :PUMP even though they are allowed under an EQUI.

UDETs based on zones may own other UDETs based on zones. This allows very flexible data models to be built.