Critical path(Timeline) – Asana Help Center calculation method in the function to highlight critical path in timeline is different from the critical path calculation method in the general project management field.
In the documentation, the Critical Path (Timeline) is described as follows:" Calculating your project’s critical path Your project’s critical path is the longest chain of dependent tasks that need to be completed for your project to be finished. However, subtasks are not included when calculating your critical path. Calculating how long it will take you to complete your project is done through task duration and dependencies between these tasks, including any time gaps."
Please refer to this document
- Critical path method - Wikipedia
- ISO 21500:2021 - Project, programme and portfolio management — Context and concepts
In ISO21500, it states that “2.8 critical path sequence of activities that determine the earliest possible completion date for the project or phase”