For the Scantel project the tabulation of the time required by various activities and the estimation of the critical path method is calculated and shown in Appendix - 1. From the table it is known that the most critical events are No. 1, 4, 8, 11, 12, 14, 15,34, 35, 36, 46, 47, 48, 40 and 50. The meaning of this is that, the completion of these activities are crucial for the completion of the project. If there is a delay in these activities, the entire project can get delayed. If these event numbers are interpreted from the Scantel event listing, (Appendix 21.3), it shows that the critical path activities lie mostly in the processes of
The activities that are related to these activities are the start systems engineering, complete interface transient tests, complete compatibility testing. These activities can cause delay because this was the first time such system was being developed. It will be very critical because, Callister has to first decide the major parts of the system, their functions and how they are related to each other. After the architecture is decided the next issue is to decide whether the components should be developed in-house or to be bought and redesigned. Hence, the procurement of all the prototypes and overall simulation is going to be a potentially time delaying event.
The next group of ac...
The instrument Development team which was heavily consulted by the Scantel team for these activities, had very little experience of this type of work. Also in the Instrument development team, young software engineer had been recruited to handle this job for the Scantel project. But based on his expertise it was difficult to determine the completion times confidently.
All testing activities which include events 34, 36, 47, 48 and 49 are all events that can cause potential time delays. These testing activities can cause potential time delays because it involves the coordination and analysis of all the subsystems. But it is healthy for the project to be on a tight schedule in this phase because it will be advantageous in the later stages of the project. The cost or time overrun in the early stages of the project might actually be a superior design effort which would reduce the time and money required for the entire effort. If early stages of the project looks expensive, it is possible that it could bring down the costs at the later stages of the project. Especially event 34 can be delayed because of possible delays in development of lens, development of chassis and body and development of the display system. In the network it is shown that the main tasks associated are separated into engineering, testing and rework phases. It seems that each phase is independent. But the potential threat of rework after the system and integration testing would be strongly dependent on the amount and quality of prior engineering. The testing events may cause time delay to the project because all the prior engineering works have to pass this stage and sometimes