Question

Check my word 1 You have prepared the following schedule for a project in which the key resource is a tractor. There are three tractors available to the project. The resource requirements are as shown in the diagrams below. Develop a resource-constrained schedule. Use the parallel method and heuristics given. Be sure to update each period as the computer would do. ts SESSE DURU FEE eBook 1 eferences Use the following order of heuristics: 1. Minimum slack, 2. Smallest duration, 3. Lowest identification number Schedule resource load chart with ES and slack Updates

Answer 1

1)

If it was NOT resource-constrained, the project will take = 8 time periods

2)

Gantt chart and resource loading chart before resource leveling, is following:

Gantt chart based on Early Start and Finish times ID RES DURES LF SL 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 11 203 1 1 1 2 2 3 0 3 0 2 2 2 3 2 2 2 6 2 2 2 4 1 3 3 6 0 1 1 1 2 2 3 61 2 2 2 2 6 80 2 2 Resources required 334531220000000 Resources available 33 3 3 3 3 33 3 3 3 un 6 3 نيا 3 نيا Resource Loading Chart 6 5 2 3 Resources Scheduled 3 4 2 1 2 3 10 11 12 13 14 15 4 5 6 7 8 9 Time Periods

Activities 3 and 5 need to be rescheduled , in order to limit the resource usage up to 3  

Resulting Gantt chart and resource loading chart is following:

8 14 Gantt chart based on resource constraint ID RES DURES LF SL 11 2 3 4 5 6 7 9 10 11 12 13 15 1 1 2 03 1 1 1 2 2 3 0 3 0 2 2 2 3 2 2 3 5 0 2 2 4 1 3 3 71 1 1 1 5 2 2 570 2 6 2 2 790 2 Resources required 3 3 2 3 3 3 2 2 2:00:00:00 Resources available 33 3 3 3 3 3 33 33 2 -------- WNN 3 Resource Loading Chart 6 5 N 3 Resources Scheduled 3 4 2 15 6 1 2 3 10 11 12 13 14 15 4 5 6 7 8 9 Time Periods

We see that duration of the project increased from 8 to 9 time periods.

Order in which we scheduled the activities of the resource-constrained project.

First	2
Second	1
Third	3
Fourth	4
Fifth	5
Sixth	6