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Unformatted text preview: < previous page page_103 next page > Page 103 system modelling. As each System, 2 to 5, is considered we will, at relevant points, refer back to these procedures and show how they act as "variety filters", helping to cope with the complexities associated with vehicle requirements. Viable system diagnosis requires that we consider the System 1 environment (the operational environment) at this stage. The divisions of System I are affected by four main environmental factorsdifficulties associated with spare parts availability; bad road conditions caused by heavy rainfall; corruption; and the poor educational and training standards of drivers. These environmental issues, when mixed with those dealt with by System 4, required careful yet innovative management and coordination from Systems 1 to 5. System 2 While Procedures 1 and 2 govern the internal divisional use of vehicles, monitored and controlled by divisional managers, Procedures 3 and 4 require monitoring and control by a System 2 co-ordinator of...
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- Spring '11