Parametric requirements overview

Parametric requirements represent the requirements established by the Standards Engineering group that conform to the design practices of a program. Parametric requirements are often categorized and maintained in a library for use by design engineers in the creation of parts lists.

The following concepts apply to parametric requirements:

• Parametric requirements specify parametric variable values that designers select when attaching the requirement to an item or an item revision.

• Parametric requirements are associated with items, such as parts or documents, through the Parametric Requirements Lists relation where the part or document revision is the primary object and the parametric requirement or parametric requirement revision is the secondary object.

• When a parametric requirement is created, a FullText dataset is created that contains the requirement content. The dataset is attached to the requirement revision.

  Note: You cannot delete the dataset or detach the dataset from the requirement revision.

• You enter the parameters for the requirement in the Body Cleartext property of the requirement revision.

  Note: You cannot edit the Body Cleartext property after you save it. To edit parameters later, you must create a new revision and edit the revision's Body Cleartext property.

• The Body Cleartext property contains text, parameters, and parameter values in the syntax shown below.

text [parameter_name: parameter_value_1 delimiter parameter_value_2 delimiter...parameter_value_n]

Example

Round all sharp corners to [Radius: 0.4, 0.5, 0.6] inch
and heat treat to [Temperature: 200, 220, 230] degrees Fahrenheit.

The default delimiter is a comma (,). However, your Teamcenter administrator can configure the delimiter to use a different character.

Parametric requirements are used to associate parts with documents. Parametric requirements and parametric requirement revisions can be related to multiple items or item revisions.