During the first week of implementation, both the customer and our development team were happy because the software runs smoothly without any hiccups. Except its Y2k compliance and the IB4 integration, the fMRP3 has no difference in business rules and algorithms than version 2. We monitored the maintenance and support cost and the system downtime generated by the software during the first six months of implementation of both version 2 and 3. Both maintenance and support cost shown here are based on averaged cost per total effort. The data was collected for the same period of the first six months of implementation for both version 2 and 3 because the reading was most significant in this study.
Profit is maximized due to the decreased of maintenance cost.
Profit is also maximized in support. Figure 1.2 Figure 1.3 shows the system down time generated by software. Note the downtime for version 3 on the first and second month of implementation were high compare to following months. The reason was that the software was shutdown for patches and upgrading of drivers and library updates and addition of new components. This has proven the reliability of Ada.