2. The following is a list of activities for the development of a product idea from the conception to the beginning of manufacturing. Activity A B C D E F G H I J Description Develop product specs Design process Order materials K Purchase equipment Install equipment D Receive materials C Conduct test run E, F Evaluate product design G Evaluate process performance G Complete documentation H, I Schedule regular production run J Step 1: Draw an appropriate precedence diagram for the network Step 2: Identify the different paths in the network and total activity time on path. Path 1: Path 2: Path 3: Path 4: Time: Step 3: Identify the critical path(s) on the network. The critical path is the one having the longest total activity times. Immediate Predecessor(s) Task Time None 4 A A B Time: Time: Time: 6 3 6 14 5 2 2 Critical path: Time: Step 4: Find the ES times and EF times. Place these on the activity diagram. Step 5: Find the LF times and the EF times. Place these on the activity diagram. Step 6: Find the slack for each activity and insert in the activity table. Which activities require constant management attention? Which activity requires the least amount of management attention? 3 4 2