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Unformatted text preview: ecides on which resource to be mobilised; recorded on form and passed to dispatcher; Dispatcher telephones relevant ambulance station, or passes mobilisation instructions to radio operator if ambulance already on road; Resource identification Resource mobilisation Whole process meant to take < 3 minutes. Ian Sommerville 2004 Slide 6 Software Engineering Case Studies Concept/design of the CAD system Existing systems dismissed as inadequate and impossible to modify to meet LAS's needs Intended functionality "greater than available from any existing system". To consist of Computer Aided Dispatch; Computer map display; Automatic Vehicle Location System (AVLS); Must integrate with existing MDTs and RIFS (Radio Interface System). Near 100% accuracy and reliability of technology; Absolute cooperation from all parties including CAC staff and ambulance crews. Desired system: Success dependent upon: Ian Sommerville 2004 Slide 7 Software Engineering Case Studies Problems: Procurement (i) Contract had to be put out to open tender Regulations emphasis is on best price; 35 companies expressed interest in providing all or part of the system Most raised concerns over the proposed timetable of less than 1 year until full implementation. Previous Arthur Andersen report largely ignored Recommended budget of 1.5M and 19 month timetable for packaged solution. Both estimates to be significantly increased if packaged solution not available; Report never shown to new Director of Support Services. Only 1 out of 17 proposals met all of the project team's requirements, including budget of 1.5M. Ian Sommerville 2004 Slide 8 Software Engineering Case Studies Problems: Procurement (ii) Successful consortium Apricot, Systems Options (SO), Datatrak; bid at 937k was 700k cheaper than the nearest bid; SO's quote for the CAD development was only 35k Their previous development experience for the emergency services was only for administrative systems. Ambiguity over lead contractor. Sys...
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This note was uploaded on 01/09/2012 for the course EMP EMP5117 taught by Professor Bohehm during the Fall '11 term at University of Ottawa.

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