## MPM method

The MPM method makes it possible to evaluate the duration of the realization of a complex project and to detect the parts of this project not supporting any delay. The information about the tasks is summarized in a schedule.

Unlike the PERT method, the vertices of the BPM method are tasks to be performed. We can “consider” that the edges of the PERT method become vertices in the MPM method (similarly for the vertices becoming edges).

The main differences with the PERT method:

- the representation of the prior relationships of a task sharing some of its antecedents with another does not require the use of fictitious links
- to each arc is associated a numerical value which represents either an operation duration or a delay.

the graph MPM is built like the PERT graph, the margin calculation is identical. Here is the timeline:

task | precedence | duration |

TO | – | 5 |

B | – | 5 |

VS | B | 3 |

D | A, C | 10 |

E | – | 5 |

F | – | 0.5 |

G | D | 0.5 |

H | F, G | 0.5 |

I | H | 1 |

J | E, I | 2 |

Which gives the following graph: