Topic wise notes as per new NCHM-JNU syllabus (for B.Sc HHA & M.Sc HA) are are now available at our new website hospitality.institute
Visit Now
Select Page
6th Sem Facility Planning Notes

Comparison of CPM and PERT

by

Last updated: 22 July 2023

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 a 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, shipbuilding, etc.
Crashing concept Not Applicable Applicable

 

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 uncertain activities are done. CPM is a statistical technique of project management in which planning, scheduling, organising, coordination and control of well-defined activities take 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 a research and development project, CPM evolved as a 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 a 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 the least additional cost. The crashing concept is not applicable to PERT.

How useful was this post?

5 star mean very useful & 1 star means not useful at all.

Average rating 4.5 / 5. Vote count: 12

No votes so far! Be the first to rate this post.

We are sorry that this post was not useful for you! 😔

Let us improve this post!

Tell us how we can improve this post?

Syllabus BHM306

01 Hotel Design

  1. Design Consideration
    1. Attractive Appearance
    2. Efficient Plan
    3. Good location
    4. Suitable material
    5. Good workmanship
    6. Sound financing
    7. Competent Management

02 Facilities Planning

  1. The systematic layout planning pattern (SLP)

Planning consideration

  1. Flow process & Flow diagram
  2. Procedure for determining space considering the guiding factors for guest room/ public facilities, support facilities & services, hotel administration, internal roads/budget hotel/5 star hotel

Architectural consideration

  1. Difference between carpet area plinth area and super built area, their relationships, reading of blue print (plumbing, electrical, AC, ventilation, FSI, FAR, public Areas)
  2. Approximate cost of construction estimation
  3. Approximate operating areas in budget type/5 star type hotel approximate other operating areas per guest room
  4. Approximate requirement and Estimation of water/electrical load gas, ventilation

03 Star Classification of Hotel

  1. Criteria for star classification of hotel (Five, four, three, two, one & heritage)

04 Kitchen

  1. Equipment requirement for commercial kitchen
    1. Heating – gas/electrical
    2. Cooling (for various catering establishment)
  2. Developing Specification for various Kitchen equipments
  3. Planning of various support services (pot wash, wet grinding, chef room, larder, store & other staff facilities)

05 Kitchen Layout & Design

  1. Principles of kitchen layout and design
  2. Areas of the various kitchens with recommended dimension
  3. Factors that affect kitchen design
  4. Placement of equipment
  5. Flow of work
  6. Space allocation
  7. Kitchen equipment, manufacturers and selection
  8. Layout of the commercial kitchen (types, drawing a layout of a Commercial kitchen)
  9. Budgeting for kitchen equipment

06 Kitchen Stewarding Layout and Design

  1. Importance of kitchen stewarding
  2. Kitchen stewarding department layout and design
  3. Equipment found in kitchen stewarding department

07 Stores – Layout and Design

  1. Stores layout and planning (dry, cold and bar)
  2. Various equipment of the stores
  3. Work flow in stores

08 Energy Conservation

  1. Necessity for energy conservation
  2. Methods of conserving energy in different area of operation of a hotel
  3. Developing and implementing energy conservation program for a hotel

09 Car Parking

  1. Calculation of car park area for different types of hotels

10 Planning for Physically Challenged

11 Project Management

  1. Introduction to Network analysis
  2. Basic rules and procedure for network analysis
  3. C.P.M. and PERT
  4. Comparison of CPM and PERT
  5. Classroom exercises
  6. Network crashing determining crash cost, normal cost