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Published byRhett Uran Modified over 9 years ago
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Quality in Design ISO9001/2, CMM, etc., derive from process quality assurance approaches in manufacture –Produce standard, undifferentiated products –Physicality of a manufacturing process permits its decomposition into repeatable steps But software need only be written where the product is unique... –Unique products cannot be generated by 'standardised' processes –Intellectual property is less easily sliced and diced
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Design is Always Iterative Design is like a "game of chess" –Designer makes a move, system makes a countermove Every design choice balances pre-existing 'forces'... –Often well understood in isolation, but not when they co-exist and interfere with each other And unleashes new ones, often unanticipated
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Reliability Functionality that is not tested contains bugs
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