Bills of Materials
A bill of materials lists the raw materials, sub-assemblies, intermediate assemblies, sub-components, and parts, that are used to manufacture an end product. You can use a Bill of Materials both for the procurement of materials and also to identify any compliance issues before they become a problem.
BoMs created in BoM Analyzer or imported from MI Materials Gateway conform to the Granta MI BoM schema, which defines how components and data assignments can be structured in the BoM hierarchy. (For example, a Part can have a Material as a sub-item, but not vice versa.)
When you are working in Restricted Substances mode or Sustainability mode, there are
additional rules that restrict the data types that you can view, select and assign in
BoM Analyzer. This is to ensure that you
assign data that is relevant to the type of analysis that you are carrying out. For
example:
- If you are in Restricted Substances mode:
-
- You cannot assign a Process, Location, or Transport stage.
- You cannot assign a Coating directly in BoM Analyzer (but Coatings linked to Specification records in the database are displayed when the BoM is analyzed).
- If you are in Sustainability mode:
-
- You cannot assign a Specification, Coating, or Substance.
- You can only assign one Material to each Part.
- When you are assigning Processes:
- Primary and Secondary processes can only be assigned at the Material level. You can only assign one Primary process to each Material, and all processes on the material must appear in the BoM in the order that they are applied.
- Joining & Finishing processes can only be assigned at the Part level.