Made with
ConceptDraw
DIAGRAM 14

Program Evaluation and Review Technique
(PERT) with ConceptDraw DIAGRAM

PERT method (Program Evaluation and Review Technique) is developed by the Ministry of Defense of the USA in 1958 in the framework of the project Polaris. PERT diagram is one of the tools for project management. With its help it is possible to analyze the time which is necessary for project execution and the consequence of tasks which involved into the project. The main advantage of such diagram type over the other diagram types is the possibility of calculation of the project fulfillment critical path that is the consequence of tasks which has the minimal float for execution and on which the total time for the whole project execution depends. If the task on the critical path is delayed than the execution of the whole project is delayed. There for it is important to calculate the critical path of the whole project execution and pay the most attention to tasks which appear on this way.

PERT Diagram is a more realistic approach of a project's time estimate analysis. After PERT chart was constructed user can discover the shortest possible duration for entire project timescale. The project timeline is the longest chain that might be taken with connected tasks on the PERT Diagram. Completion of serial tasks need to be accomplished in a presented order. At a project timeline can be independent tasks that not linked with main sequence they are called parallel tasks. PERT diagram is more suitable for Critical Path Analysis than Gantt chart for the reason that it undoubtedly better figure task dependencies. Project managers customarily utilize both methodologies.

It should be considered that PERT diagram does not give you ready concrete decisions but it helps you to find these decisions.

PERT diagram is constructed by definite rules. It represents the set of tasks, connected between each other in the consecution of their execution.

Program Evaluation and Review Technique (PERT) with ConceptDraw DIAGRAM title=

PERT benefits:

  • With a PERT method users can decide how to split project phases and choose the tasks' specification and dispose relations between them.
  • Different contractors involved in the project can coordinate the work on their tasks.
  • PERT determines schedule based on the availability of resources assigned to project tasks.
  • Decrease completion time of different tasks or supposed additional actions.
  • PERT utilizes resources within flexibility for implementing a thrift.
  • Attracting more management attention to critical stages of the project.

There are two variants of PERT diagram construction. In the first variant the duration is denoted on arrow connecting diagram nodes. Such diagram type is called AOA (activity on arrow).

The second type of PERT diagram is called AON (activity on node). In such diagram the information about the task duration is denoted in the diagram node and each task is represented in the form of rectangle with the definite set of fields. These are the task name, duration, early and late starts and early and late finishes of the task and also the float for execution of the given task.

Program Evaluation and Review Technique(PERT) Diagram

Pic 1. PERT Diagram — AON (activity on node)

With the help of ConceptDraw you can build diagrams of any type, but we recommend you using of AON variant, because such diagram type is easier for building and perception.

PERT diagram starts from the task which does not have duration and does not use resources and presents just a project start. This is done to denote the common start of the project as starting from the first day of the project several tasks are starting simultaneously. Analogously PERT diagram finishes with the task “finish”.

Program Evaluation and Review Technique - Start

Pic 2. PERT Diagram

No task is able to start before the preceding task is finished. Also each task may represent a separate project with its subtasks, which can be displayed on a separate diagram. In ConceptDraw this can be realized in the form of hyperlinks assigned to such tasks. These hyperlinks may point at some pages of your ConceptDraw document where the corresponding PERT diagrams are placed.

Program Evaluation and Review Technique - Link

Pic 3. PERT Diagram — Task

Objects for PERT diagrams building are gathered in a separate ConceptDraw objects library. To start working it is enough to launch PERT Chart template from ConceptDraw STORE.

To create a PERT diagram with ConceptDraw, it is enough to drag on a document page the number of ready objects, representing tasks, and then connect them between each other and fill out necessary task fields.

Program Evaluation and Review Technique Diagram

Pic 4. PERT Diagram with ConceptDraw

However, a Gantt chart gives more information than PERT diagram, and that assume to expand the information on it:

  • activity name
  • normal duration time
  • early start time (ES)
  • early finish time (EF)
  • late start time (LS)
  • late finish time (LF)
  • slack

Task appeared on the calculated critical path are marked out with red color. This way any person is able to see at once tasks which require special attention.

Program Evaluation and Review Technique - Critical Path

Pic 5. PERT Diagram — Critical Path

ConceptDraw PERT diagram software works across any platform, meaning you never have to worry about compatibility again. ConceptDraw DIAGRAM allows you to make PERT diagram on PC or macOS operating systems.

The samples you see on this page were created in ConceptDraw DIAGRAM using the Seven Management and Planning Tools solution, and demonstrate the solution's capabilities and the results you can achieve using this solution.

Seven Management and Planning Tools solution

Program Evaluation and Review Technique <br>(PERT) with ConceptDraw DIAGRAM  *

Pic 6. Program Evaluation and Review Technique (PERT) Diagram — Software Development Plan

The following features make ConceptDraw DIAGRAM the best Program Evaluation and Review Technique (PERT) Diagram Software:

  1. You don't need to be an artist to draw professional looking diagrams in a few minutes.
  2. Large quantity of ready-to-use vector objects makes your drawing diagrams quick and easy.
  3. Great number of predesigned templates and samples give you the good start for your own diagrams.
  4. ConceptDraw DIAGRAM provides you the possibility to use the grid, rules and guides. You can easily rotate, group, align, arrange the objects, use different fonts and colors to make your diagram exceptionally looking.
  5. All ConceptDraw DIAGRAM documents are vector graphic files and are available for reviewing, modifying, and converting to a variety of formats: image, HTML, PDF file, MS PowerPoint Presentation, Adobe Flash, MS Visio.
  6. Using ConceptDraw STORE you can navigate through ConceptDraw Solution Park, managing downloads and updates. You can access libraries, templates and samples directly from the ConceptDraw STORE.
  7. If you have any questions, our free of charge support is always ready to come to your aid.




TEN RELATED HOW TO's:

Social Media Flowchart Symbols →

Social media is a popular view of mass communication which allows people, companies and organizations create, share, discover, modify, access, comment, discuss and exchange information through the Internet. Social Media Response solution for ConceptDraw DIAGRAM provides collection of 10 libraries with diversity of predesigned vector social media flowchart symbols for fast and easy creating interactive Social Media Flowcharts, Response Charts and Action Mind Maps.Social Media Flowchart Symbols *
Picture: Social Media Flowchart Symbols
Related Solution:

Network Diagram Software. LAN Network Diagrams. Physical Office Network Diagrams →

Local area network connects computers and other network appliances within an area, such as office building or a campus. It can be difficult to provide such network without a predesigned plan. For these purposes you can use network diagram software, which helps you to create LAN network diagrams and office network diagrams quickly and effortless. This will speed up your work and you can save the diagram for the future network improvements. The following diagram illustrates a network topology of the small office. LAN configuration has a star topology. The local network joins 8 computers among which are several desktop PCs, laptop, two iMacs and iBook. The end-point devices are divided into three groups. Each group is connected to its hub. There is a network printer and a modem, which are interconnected with other devices through a network server. Each computer on the LAN can access the server through a corresponding hub.LAN Network Diagram
Picture: Network Diagram Software. LAN Network Diagrams. Physical Office Network Diagrams
Related Solution:

Rack Rate →

The Rack Diagram visualizes in details the rack mounting of computer and network equipment, so it allows to show what equipment and racks are needed to buy, allows to estimate the rack rate and also helps to organize equipment on the racks virtually, without the real installation. To facilitate the rack diagrams designing, ConceptDraw DIAGRAM diagramming and vector drawing software was extended with Rack Diagrams Solution from the Computer and Networks Area.Rack Rate *
Picture: Rack Rate
Related Solution:

Seven Basic Tools of Quality — Quality Control →

ConceptDraw DIAGRAM diagramming and vector drawing software extended with Seven Basic Tools of Quality solution from the Quality area of ConceptDraw Solution Park provides effective tools for quality control and helps design any types of quality-related diagrams.Seven Basic Tools of Quality — Quality Control *
Picture: Seven Basic Tools of Quality — Quality Control
Related Solution:

UML Block Diagram →

Use Case Diagram Taxi Service UML. This sample was created in ConceptDraw DIAGRAM diagramming and vector drawing software using the UML Use Case Diagram library of the Rapid UML Solution from the Software Development area of ConceptDraw Solution Park. This sample shows the work of the taxi service and is used by taxi stations, by airports, in the tourism field and delivery service.UML  Block Diagram *
Picture: UML Block Diagram
Related Solution:

Entity Relationship Diagram Symbols →

When we start to speak about databases, we must always mention database structure visualization. One of the most common ways to do it is to create an entity relationship diagram, and to put appropriate symbols on it. It is important either for database projecting and for its' future maintenance. Entity Relationship Diagram describes data elements and their relationships within a database. There are a set of special symbols that depict each element of an entity relationship diagram. Entities - represents some stable components such as supplier, employee, invoice, client, etc. Relation symbols show how the entities interact. Attributes define characteristics of the relationships. Attributes can be one-to-one or many-to-many. Physical symbols is used in the physical models. They represent items such as fields, tables, types and keys. ERD physical symbols are the building material for the database. Notation lines are used to illustrate the relationships. The most common method is Crow’s Feet notation. You can use ConceptDraw Entity-Relationship Diagram (ERD) solution to represent a database using the Entity-Relationship model.Entity Relationship Diagram Symbols
Picture: Entity Relationship Diagram Symbols
Related Solution:

Mini Hotel Floor Plan. Floor Plan Examples →

But it never matters which hotel plan you want to illustrate in a way of a floor plan, you can always do it with ConceptDraw DIAGRAM especially it can be simple to do having the “Floor Plans” solution, which can be downloaded from the Building Plans area of ConceptDraw Solution Park.Mini Hotel Floor Plan
Picture: Mini Hotel Floor Plan. Floor Plan Examples
Related Solution:

Flow Chart Online →

Flow Chart is a great visualization tool for the flow of a process, algorithm or procedure with a lot of benefits. It is convenient to use a powerful software for creating flow charts. Now we have the best flow chart maker online design software - ConceptDraw DIAGRAM enhanced with Flowcharts Solution from the "Diagrams" Area of ConceptDraw Solution Park.Flow Chart Online *
Picture: Flow Chart Online
Related Solution:

How to Design Landscape →

How to design landscape? You can draw it by hand on a sheet of paper, but for this you need to know the bases of the perspective, you need to have good artistic abilities and to know how to depict the natural elements. But it is much easier and convenient to use the modern ConceptDraw DIAGRAM diagramming and vector drawing software extended with Landscape & Garden Solution from the Building Plans Area.How to Design Landscape *
Picture: How to Design Landscape
Related Solution:
ConceptDraw
DIAGRAM 14