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    Product Contract

      A product contract, or design specification, is a document that defines the product design task and measures by which the success of the design will be judged. The contract defines expectations for the alpha prototype. A 2.009 product contract document should include: a header with
      • description: what is your product?
      • value proposition: who is your user? how does the user benefit? where and when used? why would someone want this?
      • User persona
      • market
      a body with:
      • user needs, product attributes, engineering specifications
      Engineering specifications provide a measurable description of what the product must do.

      Product Contract Example

      A simple partial example of a product contract is provided below. description: portable electric device for lifting automobiles value proposition: a portable automobile lift that allows amateur enthusiasts to work on cars, on weekends at home, as comfortably as using a commercial lift user persona: backyard mechanic market: automotive accessories
      user need product attribute(s) engineering specification(s)
      can be easily transported weight less than 40 lbs
      is easily stored in the home garage size less than a 24" cube
      can handle most repair situations capacity up to 3000 pounds
      can be used on many uneven surfaces stability stable at 16" height with 400 lb side load