Design Rationale

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The design rationale is an explanation of all the technical functional details and choices made in order to meet OSE Specifications. This is a two step process:

  1. First meet industry standard prior art
  2. Then meet requirements such that the device complies with OSE Specifications, as defined specifically in the OSE Specifications Review.


The Design Rationale is a list of design features that are consistent with OSE Specifications.

The Rationale includes functional mechanisms, layout, geometry - and may include any other information that is critical for specifying how the machine will be converted from concept to real product.

In general, the functioning mechanism should be based on a historically proven industry standard. While innovation may occur, the first step in open sourcing of industry standards should be replication of existing mechanisms, and their adaptation for manufacturability, simplicity, modularity, and lifetime design - to create people-centered design.

First is lifetime design.

  • Modularity and simplicity contribute to the ability of the user to be in full control of and to maintain the machine in question

Second - the design should be the simplest possible while retaining high performance.

  • Low the number of parts
  • Reduced complexity of fabrication process
  • Least fabrication time requirement
  • Industry standard performance

Third is modularity.

  • Modularity occurs at the level of components, such that modules can be interchanged between different GVCS tools
  • Modularity occurs at the level of subassemblies, such that functional units (such as interchangeable bearings, shafts, etc. comprise any given module


  • Wikipedia - [1]