Assignable Requirements Algorithm

Computation of assignable requirements is different for items, operations, and work instructions.

This page discusses:

See Also
About Requirements
Requirement Browser
Assignment Manager
Managing Requirements
Managing and Updating Requirement Links Between Items and Operations

Assignable Requirements Algorithm for Items

Computation of assignable requirements is different for assemblies and individual items. The algorithm for assemblies is called Assembly Algorithm and the algorithm for individual parts is called Part Fabrication Algorithm.

Assembly Algorithm

Assemblies include Manufacturing Assembly, Manufacturing Installation, Manufacturing Kit, Service Assembly, and Service Kit. The list of assignable requirements for assemblies is as follows:

Get Requirements from Engineering Items Linked to Selected Item
  1. It retrieves the engineering item scoped by the selected Manufactured Item.
  2. If there is no engineering item found, then it obtains the engineering items that are the assignment filter's direct targets on the selected Manufactured Item.
  3. If there are no engineering items by scope or by assignment filter on the selected Manufactured Item, then it obtains the engineering items from the first upper scope or the first upper assignment filter respectively.
    Note: The parent of the selected Manufactured Item is verified recursively for scopes and assignment filters.
From the retrieved engineering item, it obtains the published requirement specifications and all the requirements thereafter.

By default, this option is selected.

Include Requirements from Children of Linked Engineering Items
It retrieves all the children of the previously identified engineering items and obtains the requirement specifications linked to the identified engineering item and all the requirements thereafter.
Note: When selected for assemblies, this option displays the Display Requirements from lower scopes check box in the Requirement to Item Assignment tab. Select this check box to obtain requirements below the lower scope.

By default, this option is not selected.

Get Requirements from Resulting Product Defined on Selected Item
If a Resulting Product is defined on the selected Manufactured Item, then it retrieves the requirement specifications published by the Resulting Product root and all FTA requirements thereafter.

By default, this option is selected.

Get Requirements from Global Specification Link
  1. It retrieves all the requirement specifications linked with a Global Specification link to the selected Manufactured Item and lists all the requirements thereafter.
  2. If there are no requirement specifications linked with a Global Specification link to the selected Manufactured Item, then it retrieves all the requirement specifications linked with a Global Specification link to the first upper parent scope and lists all the requirements thereafter.

By default, this option is not selected.

Tips:
  • The selected preferences are saved and are retrieved when you open the Assignment Manager to compute the list of possible assembly requirements.
  • You can enable/disable these options in Me > Preferences > App Preferences > Simulation > Process Engineering > Process Planning > Requirement > Assignable Requirements for an Item - Assembly.

Part Fabrication Algorithm

Part Fabrications include any other Manufactured Items that are not used in assemblies, such as Provided Part, Continuous Provided Material, Manufactured Part, Manufactured Material, and Continuous Manufactured Material. The list of assignable requirements for individual items is as follows:

Get Requirements from Engineering Items Linked to Selected Item
  1. It retrieves the engineering item scoped by the selected Manufactured Item.
  2. If there is no engineering item scoped by the selected Manufactured Item, then it obtains the engineering items from the first upper scope or the first upper assignment filter respectively.
    Note: The parent of the selected Manufactured Item is checked recursively for scopes and assignment filters.
From the retrieved engineering item, it obtains the published requirement specifications and all the requirements thereafter.

By default, this option is selected.

Get Requirements from Resulting Product Defined on Selected Item
If a Resulting Product is defined on the selected Manufactured Item, then it retrieves the requirement specifications published by the Resulting Product root and all FTA requirements thereafter.

By default, this option is selected.

Get Requirements from Global Specification Link
  1. It retrieves all the requirement specifications linked with a Global Specification link to the selected Manufactured Item and lists all the requirements thereafter.
  2. If there are no requirement specifications linked with a Global Specification link to the selected Manufactured Item, then it retrieves all the requirement specifications linked with a Global Specification link to the first upper parent scope and lists all the requirements thereafter.

By default, this option is not selected.

Tips:
  • The selected preferences are saved and are retrieved when you open the Assignment Manager to compute the list of possible individual item requirements.
  • You can enable/disable these options in Me > Preferences > App Preferences > Simulation > Process Engineering > Process Planning > Requirement > Assignable Requirements for an Item - Part Fabrication.

Assignable Requirements Algorithm for Operations

The list of assignable requirements for operations is as follows:

Get Assigned Requirements on first upper scoped Items
  1. It retrieves the Manufactured Item from the first upper scope.
  2. It retrieves all the assigned requirements to this Manufactured Item scope.
  3. If there are requirement specifications linked with a consumption link to this Manufactured Item scope, then it also retrieves all the requirements thereafter.

By default, this option is selected.

Get Requirements from Output Defined on Selected Operation
If an operation output is defined on this operation, then it retrieves the requirement specifications published by the operation output root and all FTA requirements thereafter.

By default, this option is not selected.

Get Requirements Assigned on Previous Operations
  1. It retrieves the requirements assigned to the previous operations.
  2. It retrieves the requirements defined on the output of these operations (which are not visible to the next operations).

By default, this option is not selected.

Get Requirements from Global Specification link
It retrieves all the requirement specifications linked with a Global Specification link to the first parent system or workplan and all requirements thereafter.

By default, this option is not selected.

Tips:
  • The selected preferences are saved and are retrieved when you open the Assignment Manager to compute the list of possible individual item requirements.
  • You can enable/disable the Get Requirements from Engineering Items linked to selected Item option in Me > Preferences > App Preferences > Simulation > Process Engineering > Process Planning > Requirement > Assignable Requirements for an Operation.

Assignable Requirements Algorithm for Work Instructions

The list of assignable requirements for work instructions is as follows:

Assignable Requirements Algorithm for Operations
It is the same as assignable requirements for operations.
Assign Requirements on Parent Operation
If the requirement is not assigned to a parent operation:
  1. the requirement is assigned to the parent operation.
  2. the requirement is assigned to the work instruction.
Unassign Requirements from the Parent Operation
The same requirement is unassigned if it is assigned to a child data collect plan.
Note: Unassignment is not performed for other types of instructions such as alert, sign-off, and data collect.