Project Scheduling Theory
NETWORKS QUANTIFIED & DEFINED
Although it is not the aim of this book to give a theoretical view on planning, it is necessary for a Project Planner to understand, and be able to use the basic planning theory to do calculations. When using project scheduling software, these calculations are done by the software, and front end provided by the software “hides” the basic calculations done in the background. Also note that, even when using software to do project scheduling, most of the rules and principles listed in this chapter are still applicable.
QUESTIONS COVERED
- The Activity on an Arrow network has been drawn for the small project shown in the table. Do a logic check on the network and answer the following questions:
- Find the logic error in the network.
- Can this logic error have an influence on the timelines – explain your answer.
- Table 1 on page 48 in the training manual
- Figure 8.37 on page 97 in the training manual
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INCLUDED IN THIS CHAPTER: Networks, Introduction to networks, Purpose of networks, Network parameters, Network conventions, Network logic, Logic relationships, Lags and leads, Activity-on-arrow networks, Durations, Numbering, Ladders, Other relationships, Logic checks, Activity on node networks, Basic rules for constructing activity on node network diagrams, Node layout for activity on node network diagrams, Activity numbering in AoN networks, Network logic in AoN networks, Logic checks in AoN networks, Network calculations – Forward pass method, Steps for the forward pass calculation method, Special case, Follow-on forward pass calculations with multiple predecessors, Network calculations – Backward pass method, Steps for the backward pass calculation method, Follow-on backward pass calculations with multiple predecessors, Backward pass matrix, Network calculations – Float & critical path, Network calculations – Approach 2 VS Approach , Time scaled logic diagrams, CPM Critical path method, CPS steps, Purpose of CPM, When to use CPM & PERT analysis.