9.4 Fabrication specifications: The devil is in the details Flashcards Preview

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Flashcards in 9.4 Fabrication specifications: The devil is in the details Deck (7):
1

What is the endpoint of a successful design project?

The endpoint of a successful design project is the set of plans that form the basis on which the designed artifact will be built.

2

What do fabrication specifications include and describe how they ought to be.

Fabrication specifications:

  • include the final design drawings
  • must be:
    • clear
    • well-organized
    • neat
    • orderly
    • unambiguous
    • complete
    • transparent

3

What information must designers include in fabrications specifications?

Designers must include the following information in the fabrication specifications:

  • physical dimensions
  • materials to be used
  • unusual assembly conditions (e.g., bridge construction scaffolding)
  • operating conditions (in the anticipated use environment)
  • operating parameters (defining the artifact's response and behavior)
  • maintenance and lifecycle requirements
  • reliability requirements
  • packaging requirements
  • shipping requirements
  • external markings (especially usage and warning labels)
  • unusual or special needs (e.g., must use synthetic motor oil).

4

What are the three different types of fabrication specifications?

The three different types of fabrication specifications are:

  • Prescriptive fabrication specifications
  • Procedural fabrication specifications
  • Performance fabrication specifications

5

When is a fabrication specification prescriptive?

Fabrication specifications are prescriptive when we specify a particular part and its number in a vendor's catalog.

6

When is a fabrication specification considered procedural?

Fabrication specifications are considered procedural when we specify a class of devices that do certain things.

7

When is a fabrication specification considered as a performance specification?

When we leave it up to a supplier or the fabricator to insert something that achieves a certain function to a specified level, we are setting forth a performance fabrication specification.

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