Is Planning with CPM (Critical Path Method) Always Useful?
I read a very interesting article discussing how useful it is to use CPM. This article classifies schedules as follows:
Level 1: General Project Schedule, contains up to 100 activities and provides an overview of the project.
Level 2: Strategic Project Schedule, includes up to 2,500 activities and is organized by specific areas of the project.
Level 3: Project Control Schedule, comprises up to 5,000 activities and covers the total scope of the project with resource loading.
Level 4: Individual Phase Schedules, focuses on specific phases such as engineering, procurement, fabrication, construction, and completions.
Level 5: Construction Work Package List, work packages that should not exceed 5,000 hours of work.
Level 6: Field Installation Work Package List, field installation work packages with a maximum size of 1,000 hours.
The conclusion is:
* The application of CPM is more suitable for high and medium-level schedules (Levels 1, 2, and 3), providing structure and strategic vision for the project; allowing performance measurement against the baseline, a view of resource utilization, identification of critical activities, etc.
*For detailed level schedules (Levels 4, 5, and 6), it is more effective to use other agile techniques different from CPM, such as PPI, for daily planning tracking, facilitating adaptation to the changing conditions of the project.
The article I am referring to is: 2022 AACE® INTERNATIONAL TECHNICAL PAPER: Critical Path Method (CPM) and Project Production Planning (PP): Complimentary or Exclusionary? (Richard H. Stack, Jr.; and Albert P. (Mac) McMillan).
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We met someone who creates a critical path for shopping, to make her shopping trips as time-efficient as possible. Such a useful method for all sorts of life situations, in addition to software!