What is the critical path method? Complete guide with examples

The critical path method (CPM) is a project management technique that helps identify the sequence of activities required to complete a project in the shortest possible time by analyzing dependencies and scheduling. Developed in the late 1950s by Morgan R. Walker and James E. Kelley Jr., CPM is particularly useful for complex projects with interdependent tasks, allowing project managers to identify critical activities that must be completed on time to avoid delays. While CPM is valuable for planning and fostering communication among teams, it is less effective in environments requiring high flexibility and adaptability, such as those faced by many product development teams operating in complex domains. Here, unpredictability and frequent changes make it challenging to rely on CPM, as highlighted by the Cynefin framework, which differentiates between complicated and complex project environments.