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 Structure Gaps

Use

A structure gap is a placeholder for a missing component in a structure. Because the structure gap does not have a history, the system does not compare the original state with the new one until the conversion is finished.

Prerequisites

  • SAP ECC Extension PLM is activated.

  • The piece of equipment to be changed has a material numberand a serial number.

Features

When the actual history is replaced with the target history , the system checks if the prerequisites for structure gaps have been met. If the answer is yes, the following four cases are possible:

  • Case 1

    If the installation location has not changed, or if the piece of equipment was not installed before or after the history change, no changes are made to the structure gaps.

  • Case 2

    If a piece of equipment is installed in a technical object, a structure gap is deleted, if one exists.

    If several structure gaps exist, the system determines which structure gap is to be deleted as follows:

    1. The system searches for the structure gap with the same equipment number.

    2. If the system cannot find an equipment number, it searches for the structure gap with the same function identifier.

    3. If the system cannot find a structure gap with the same function identifier, it searches for a structure gap with the same material number.

    4. If the system cannot find a structure gap with the same material number, it deletes any one of the structure gaps.

  • Case 3

    If a piece of equipment is removed from a technical object, the system creates a structure gap in the appropriate place for this technical object. The function identifier, the original item, and the material number are transferred to the structure gap. In addition, the structure gap contains a reference to the piece of equipment that was originally installed.

  • Case 4

    If the piece of equipment was installed in technical object A before the change, and it is then installed in object B, cases 2 and 3 apply. However, the system does not create the reference to the piece of equipment in the new structure gap for technical object A.

Activities

The system documents the result of the check, and the deletion and creation of structure gaps in the conversion log .