# Question: What Is PERT And CPM Techniques?

## Where is PERT and CPM used?

The use of project planning and control techniques based on PERT or CPM are now common in all types of civil engineering and construction work, as well as for large developmental projects such as the manufacture of aircraft, missiles, space vehicles, and large mainframe computer systems..

## What is pert formula?

PERT calculates a weighted average as the PERT estimate by using the formula : Pert Estimate = (Optimistic + (4 X Most Likely) + Pessimistic)/6.

## Is pert more accurate than CPM?

Since PERT accounts for uncertainty and risk the expected duration is more accurate than the single point estimation technique.

## What is meant by CPM?

Cost per thousand (CPM), also called cost per mille, is a marketing term used to denote the price of 1,000 advertisement impressions on one web page. If a website publisher charges \$2.00 CPM, that means an advertiser must pay \$2.00 for every 1,000 impressions of its ad.

## What is the difference between CPM & PERT explain with examples?

PERT is a technique of planning and control of time. Unlike CPM, which is a method to control costs and time. … PERT technique is best suited for a high precision time estimate, whereas CPM is appropriate for a reasonable time estimate. PERT deals with unpredictable activities, but CPM deals with predictable activities.

## What is CPM & PERT What are the objectives of CPM & PERT?

PERT and CPM are two quite famous managerial techniques. PERT is an abbreviation of Program Evaluation and Review Technique. … CPM is an abbreviation of Critical Path Method, and similarly to PERT aims in facilitating companies’ management system to achieve corporate objectives.

## How do you do pert?

PERT planning involves the following steps:Identify the specific activities and milestones.Determine the proper sequence of the activities.Construct a PERT diagram.Estimate the time required for each activity.Determine the critical path.Update the PERT chart as the project progresses.

## What is critical path in PERT?

The critical path method, or analysis, was developed in conjunction with PERT. Both techniques are used to manage projects within a specific timeframe. The critical path method calculates the longest path that is possible with your planned activities, then figures out the time constraints that each activity is under.

## What is the full form of CPM?

CPM stands for Cost per Mile. It is also called cost per thousand as the word ? mille? in Latin means ? one thousand.? It is a marketing term that refers to the price of 1,000 advertisement impressions on one webpage.

## What is the difference between critical path method and PERT?

The main difference between PERT and Critical Path is knowing how long a given task will take. With PERT, task durations are variable, hence the need to predict time using a model. Critical Path is more useful for projects where task length is easy to predict, such as a construction project or a large conference.

## What are the major differences between PERT and CPM?

PERT is that technique of project management which is used to manage uncertain (i.e., time is not known) activities of any project. CPM is that technique of project management which is used to manage only certain (i.e., time is known) activities of any project. 2.

## What are the advantages of PERT and CPM?

The techniques of PERT and CPM help greatly in completing the various jobs on schedule. They minimise production delays, interruptions and conflicts. These techniques are very helpful in coordinating various jobs of the total project and thereby expedite and achieve completion of project on time.

## How do you calculate PERT chart?

Using the PERT Formula The PERT estimate (E) is based on a formula that includes your optimistic time estimate (O), your most likely time estimate (M) and your pessimistic time estimate (P). The basic equation is this: E = (O + 4M +P) / 6 .

## Which are common steps for both CPM and PERT techniques?

The methodology involved in network scheduling by CPM/PERT for any project consists of the following four stages:Step-1: Planning- It is started by splitting the total project into small projects. … Step-2: Scheduling- … Step-3: Allocation of resources- … Step-4: Controlling-