Decision Making

Case Studies in Systems Analysis by J. P. A. Race (auth.)

By J. P. A. Race (auth.)

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However, if the processor fails, we have a fall-back procedure: the clerks enter details of telephone orders on note-pads, and when the system is restored, these, and mail orders, can be entered retrospectively. Since the system is in use only 8 hours a day for order-taking, there are 16 hours available for recovery in this way. If there is a prolonged computer failure, the discs can be taken to the service bureau at Watford with a 4G, and VDUs at your office connected to it by means of modems and dial-up lines.

They will not, of course, criticise the technical details of the system, but will very probably dispute the description of their own functions the benefits of computer assistance points of detail in the proposed new system. They are very fearful of being put into a position where they are expected to operate a new system they do not understand, or to reduce their costs. They will therefore seize on any error of fact in order to prove that the new system is misconceived and they need no longer adopt'it.

B) Effective ASAP: complete any assemblies already started to old specifications, but all new ones to have the This will usually mean some old commodification~ ponents will be left over. These can sometimes be disassembled, and common subcomponents re-used. Bs occur once a week on average. (C) As and when: use up old stocks, but for new orders, use the modification. Cs also occur once a week. Actions: for A, delete the old component from all specifications and promote an AS to take over if the old one was a PS.

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