[unrev-II] Synthesis

From: Eric Armstrong (eric.armstrong@eng.sun.com)
Date: Thu Apr 06 2000 - 14:22:17 PDT

  • Next message: Eric Armstrong: "[unrev-II] Reduction by Deletion"

    An IBIS-style conversation proceeds like this:


    That is an analysis step. The next steps lead
    toward synthesis.

    Note that A2 is a restated version of A2. Someone
    notices this fact and creates a new version of
    both that replaces them. The new structure now
    has two references to A2''. (What is viewed as
    a hierarchy is in reality a graph, at this point.)

    The "synthesis" step occurs when A2'' is chosen
    as the desirable alternative, because it achieves
    multiple goals. (Call it an Occam-friendly system.)

    The view of the synthesis is then an inversion of
    the original hierarchy:

    In other words, when asking the question, "What
    motivated A2?" or "Why was A2 chosen?" the answer
    is given in the form: "What questions did A2
    address?" Under each question, of the course, the
    full hierarchy of alternatives and discussion can
    be found.

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