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Research of Cpm Vs Pert

Essay by   •  March 29, 2019  •  Research Paper  •  855 Words (4 Pages)  •  42 Views

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NOTES WEEK 2

Main Components of Project Management Plan

  • Identification of stakeholder's needs.
  • Smart project objectives.
  • Clear deliverables and deadlines.
  • A detailed project schedule.
  • Clearly defined roles.
  • Project costs.
  • A communication plan.
  • The right systems and processes.

CPM Vs PERT

PERT stands for Program Evaluation Review Technique, a methodology developed by the U.S. Navy in the 1950s to manage the Polaris submarine missile program. A similar methodology, the Critical Path Method (CPM) was developed for project management in the private sector at about the same time.

The most important differences between PERT and CPM are provided below: PERT is a project management technique, whereby planning, scheduling, organising, coordinating and controlling of uncertain activities is done. ... A deterministic model is used in CPM. Conversely, PERT uses probabilistic

Comparison Chart

BASIS FOR COMPARISON

PERT

CPM

Meaning

PERT is a project management technique, used to manage uncertain activities of a project.

CPM is a statistical technique of project management that manages well defined activities of a project.

What is it?

A technique of planning and control of time.

A method to control cost and time.

Orientation

Event-oriented

Activity-oriented

Evolution

Evolved as Research & Development project

Evolved as Construction project

Model

Probabilistic Model

Deterministic Model

Focuses on

Time

Time-cost trade-off

Estimates

Three time estimates

One time estimate

Appropriate for

High precision time estimate

Reasonable time estimate

Management of

Unpredictable Activities

Predictable activities

Nature of jobs

Non-repetitive nature

Repetitive nature

Critical and Non-critical activities

No differentiation

Differentiated

Suitable for

Research and Development Project

Non-research projects like civil construction, ship building etc.

Crashing concept

Not Applicable

Applicable

Key Differences Between PERT and CPM

The most important differences between PERT and CPM are provided below:

  1. PERT is a project management technique, whereby planning, scheduling, organising, coordinating and controlling of uncertain activities is done. CPM is a statistical technique of project management in which planning, scheduling, organising, coordination and control of well-defined activities takes place.
  2. PERT is a technique of planning and control of time. Unlike CPM, which is a method to control costs and time.
  3. While PERT is evolved as research and development project, CPM evolved as construction project.
  4. PERT is set according to events while CPM is aligned towards activities.
  5. A deterministic model is used in CPM. Conversely, PERT uses probabilistic model.
  6. There are three times estimates in PERT i.e. optimistic time (to), most likely time ™, pessimistic time (tp). On the other hand, there is only one estimate in CPM.
  7. PERT technique is best suited for a high precision time estimate, whereas CPM is appropriate for a reasonable time estimate.
  8. PERT deals with unpredictable activities, but CPM deals with predictable activities.
  9. PERT is used where the nature of the job is non-repetitive. In contrast to, CPM involves the job of repetitive nature.
  10. There is a demarcation between critical and non-critical activities in CPM, which is not in the case of PERT.
  11. PERT is best for research and development projects, but CPM is for non-research projects like construction projects.
  12. Crashing is a compression technique applied to CPM, to shorten the project duration, along with least additional cost. The crashing concept is not applicable to PERT.

Activity 2C – Minute-Taking

Personally reflect on this scenario and then answer the questions:

You find it difficult to take minutes during a meeting, because it’s hard to follow the discussion. You are unfamiliar with the jargon; you’re not sure what agenda item is being discussed because people seem to jump from one point to another. No one explains anything to you but look in your direction to make sure you are taking notes. You scribble down much as you can. The meeting finishes after three hours and you have 30 pages of notes. It takes you six hours to make five pages of minutes. You sent these off to the manager the next day. A week later the manager returns your minutes with many changes. You do the correct and resubmit. Once minor changes are made the manager approves them and these are circulated to those at the meeting and Chairperson.

...

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