Activity Sequencing

Understanding Activity Sequencing in the Critical Path Method (CPM)

Why it is important:
Activity sequencing is a crucial part of any project management approach, and particularly so in the Critical Path Method (CPM). It enables project managers to identify the order of tasks that need to be performed for successful completion of the project. By understanding activity sequencing, one can optimize the project schedule and efficiently allocate resources, thereby achieving completion within the given time and budget constraints.
What is Activity Sequencing in CPM?
In the Critical Path Method, activity sequencing refers to the process of identifying and documenting the relationships between project activities. It includes identifying dependencies between tasks, and determining which tasks can be run in parallel and which must be run sequentially.
How it works:
Activity sequencing starts with a list of activities from the project work breakdown structure. These activities are then analyzed to find their dependencies, and are documented in an Activity Sequence Diagram. The diagram helps to visualize the order of operations and to identify the critical path - the sequence of activities that defines the shortest possible duration of the project.
How to answer questions regarding Activity Sequencing in an exam:
Understanding the terminology and process of activity sequencing is key to answering related exam questions. Be sure to fully comprehend the concept of dependencies and the different types of dependencies such as finish-to-start, start-to-start, finish-to-finish, and start-to-finish. Be ready to identify or formulate an Activity Sequence Diagram from provided data.
Exam Tips: Answering Questions on Activity Sequencing:
Always read and understand the question before starting your answer. If it asks for sequencing, make sure you mark the appropriate task dependencies and sequence in your answer. If a diagram is involved, label it clearly to show task sequences and dependencies. Always explain your reasoning when formulating the critical path and don't forget to use the correct terminology.