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planned_longevity.mdwn (924B)

      1 **Planned longevity** is the opposite of planned [[obsolescence]]: the way
      2 of designing systems, especially [[hardware]], so that it supports
      3 [[lifespan maximization]].
      4 
      5 Planned longevity is something that should ideally take place in the
      6 industry that produces the hardware. Sometimes, the shortcomings of the
      7 industry can be compensated by changing the [[firmware]] of the system or
      8 switching to a third-party [[software]] platform.
      9 
     10 Chips should be designed open and flexible, so that they can be
     11 reappropriated even for purposes they were never intended for. Complex chips
     12 should have enough redundancy and bypass mechanisms to keep them working
     13 even after some of their internals wear out. (In a multicore CPU, for
     14 instance, many partially functioning cores could combine into one fully
     15 functioning one.)
     16 
     17 Concepts that support planned longevity:
     18 
     19   * [[Design for disassembly]]
     20   * [[Open hardware]]
     21   * [[Morseware]]