In manufacturing information systems, the product structure file is more commonly known by which name?

Introduction / Context:
Production planning and material requirements planning (MRP) rely on a detailed description of how finished goods are composed of subassemblies, components, and raw materials. This hierarchical breakdown is stored in a product structure file.

Given Data / Assumptions:

• We need the standard name for the file that lists parent–child component relationships.
• It supports explosion of requirements and rollups for planning and costing.
• We are not referring to routing or operations data.

Concept / Approach:
The product structure file is classically called the Bill of Materials (BOM). It defines each assembly's components, quantities, and sometimes effectivity dates. The item master records item-level attributes (part numbers, descriptions), while the operations file (routing) defines process steps—distinct from the BOM.

Step-by-Step Solution:

Verification / Alternative check:
MRP explosion requires BOM data; operations planning needs routings; item master supports identification—three complementary files.

Why Other Options Are Wrong:

• Item master: attributes, not structural relationships.
• Operations file: routing steps and work centers, not composition.
• All of the above: incorrect because only BOM matches the definition.

Common Pitfalls:
Confusing BOM with routing; BOM answers ‘‘what goes into it,’’ routing answers ‘‘how it is made.’’

Final Answer:
bill of materials file