Product structure modeling

Introduction

Product structure [modeling] is a hierarchical decomposition of a product, typically known as the Bill of Materials (BOM).

—Wikipedia, 

Domain Theory

Domain Theory is a systems approach for the analysis and synthesis of products. Its basic idea is to view a product as systems of activities, organs and parts and to define structure, elements, behaviour and function in these domain.

—Domain Theory, Its Models and Concepts, 

According to the Domain Theory a product is seen from four system point of views:

• A process view, where the transformation of materials, energy, and information of the product related to its use or function is central. This viewpoint lead to description of a process structure.
• An effect view, where the desired functions or effects are in focus. These effects must be able to facilitate the necessary transformations. This viewpoint is related to an effect / function structure.
• An organ view, where the technical principles or means of the product are in focus. These principles or solutions are called organs (or function carriers) and by their functionality they

create the desired effects. The result of design considerations is an organ structure.

• A part view (or assembly view), where the machine parts of the products are in focus. By determining material, form, tolerances and surface quality of each part and relations between the parts, the necessary conditions for the organs and their functionality are created.