2023/11/20

11:42

Critical path method

Building a project graph is a lot like a Cartesian closed category

Or maybe I mean a preset category

Slack

Some things are more important than others

The difference between earliest and latest start

Smallest slack is the critical path

This is a method for prioritization

Set based projects

Is a concept

Delay design decisions as long as possible

Eliminate options over time

PERT

Treats durations as probabilistic

Unlike critical path method which is deterministic

Optimistic, most likely, and pessimistic estimates

Use beta distribution

Choice of alpha and beta in distribution should be informed by priors

For each tasks

When combining tasks you get a summed normal distribution

You can get confidence of completion date from this summed normal