上游充通大粤 Project Start and Finish Time SHANGHAI JIAO TONG UNIVERSITY Estimated start time Required completion time The project's required completion time is normally a part of the project objective and stated in the contract Sometimes the overall project time is stated in terms of a cycle time rather than a specific calendar time Estimated start time can be defined as 0
Project Start and Finish Time Estimated start time Required completion time The project’s required completion time is normally a part of the project objective and stated in the contract Sometimes the overall project time is stated in terms of a cycle time rather than a specific calendar time Estimated start time can be defined as 0
上游充通大粤 Schedule Calculations SHANGHAI JLAO TONG UNIVERSITY The earliest times at which each activity can start and finish, based on the project's estimated start time. The latest times by which each activity must start and finish in order to complete the project by its required completion time
Schedule Calculations The earliest times at which each activity can start and finish, based on the project’s estimated start time. The latest times by which each activity must start and finish in order to complete the project by its required completion time
图 上游充通大粤 Earliest Start and Finish Time SHANGHAI JLAO TONG UNIVERSITY Earliest Start Time ES-the earliest time at which a particular activity can begin Earliest Finish Time EF-the earliest time at which a particular activity can be completed EF=ES+Duration Estimate
Earliest Start and Finish Time Earliest Start Time ES — the earliest time at which a particular activity can begin Earliest Finish Time EF — the earliest time at which a particular activity can be completed EF = ES + Duration Estimate
上游充通大学 SHANGHAI JIAO TONG UNIVERSITY Earliest Start and Finish Time(Cont.) Calculating forward Working through the network diagram from the beginning of project to the end of the project. ©Rule1 The earliest start time for a particular activity must be the same as or later than the latest of all the earliest finish time of all the activities leading directly into that particular activity
Earliest Start and Finish Time (Cont.) Calculating forward • Working through the network diagram from the beginning of project to the end of the project. Rule 1 • The earliest start time for a particular activity must be the same as or later than the latest of all the earliest finish time of all the activities leading directly into that particular activity