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Question
Give a specimen of gantt chart which is normally used in the production planning and control department and describe brefily how it could be used for checking the actuall process of a job against a schedule

Answer
1-Give a specimen of Gantt chart which Normally used in the production planning and control department and describe briefly how it could be used for checking actual progress of a job against the schedule?
A Gantt chart is a type of bar chart that illustrates a project schedule. Gantt charts illustrate the start and finish dates of the terminal elements and summary elements of a project. Terminal elements and summary elements comprise the work breakdown structure of the project. Some Gantt charts also show the dependency (i.e., precedence network) relationships between activities. Gantt charts can be used to show current schedule status using percent-complete shadings and a vertical "TODAY" line as shown here.
A Gantt chart is a type of bar chart that illustrates a project schedule. Gantt charts illustrate the start and finish dates of the terminal elements and summary elements of a project. Terminal elements and summary elements comprise the work breakdown structure of the project. Some Gantt charts also show the dependency (i.e., precedence network) relationships between activities. Gantt charts can be used to show current schedule status using percent-complete shadings and a vertical "TODAY" line as shown here.
The main advantage of the Gantt Charts is that visualizing your project schedule makes it very easy for the Project Manager to communicate the project schedule to various stakeholders as well as to the project team.

The main disadvantage is that Gantt Charts are not well suited for conveying complex dependencies or projects having significant potential variability in completion dates. The PERT chart was devised in the 50's for the Polaris project in order to represent this key missing concept.



Graphical Overview
  An advantage of Gantt charts is their graphical overview. Businesspeople have become quite familiar with the Gantt chart's graphical representation of project timelines and milestones, and they like the fact that they can clearly identify the steps of a project. Because tasks are often represented by a series of different color bars, members of a project management team can identify their jobs in a project at a glance.
Milestones
  Gantt charts are presentation tools that show what the key milestones of a project are. By seeing how project managers have allocated and scheduled each resource, the entire project management team stays on the same page about expectations and deliverable due dates. This ability to illustrate milestones is also a helpful tool for senior managers preparing status reports; they may not want to decipher detailed reports. A Gantt chart gives them a way to work out the critical path.

Dependencies
  A disadvantage of Gantt charts relates to task dependencies. When project managers are illustrating tasks in a project, sometimes they want to show how the tasks depend on one another. Unfortunately, the Gantt chart's format doesn't allow for this. To alleviate such problems, project managers can illustrate any constraints relating to the tasks by adding vertical lines, but this limited solution doesn't provide enough information about key dependencies, and it doesn't enable project managers to verify the dependencies.
Inflexibility
  Projects are not static: some changes may be expected as you go along. However, Gantt charts are not flexible in that way; they can't accommodate such changes. Project managers must finish all the estimates before they can produce the chart, so if estimates change, then they must redraw the chart. Also, Gantt charts cannot illustrate several scheduling possibilities in the same chart, nor can they easily indicate resource assignments.

specimen of Gantt chart
A Gantt chart is a type of bar chart for project management. This organizational resource is often in the form of a software tool, although the idea of a paper-based Gantt chart is also not unfamiliar to many project managers. Using a Gantt chart can help fine-tune the project timeline for any size of project, and helps in many general planning tasks. For those who want to create a Gantt chart to help with time management, organization or in-depth analysis of a project, here are some of the most common steps involved in that process.
Sample Gantt Charts

Sample Gantt Chart

Sample Gantt Chart for Play
Creating Your Own Gantt Chart
1.    
1
Understand the work breakdown structure. The Gantt chart is meant to help with a comprehensive goal of planning and implementing a work breakdown structure, which is the overall structure of the project. Knowing more about what this means can be useful for those who are planning to build a Gantt chart or use a related software resource.
  Learn about terminal and summary elements. Terminal elements and summary elements are two different types of project phases or modules that have their own timelines within a Gantt chart. Understanding how they differ and how they relate to each other can be useful.
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2.    
2
Gather necessary information about all steps or processes included in a greater project. This information is what the project manager will use to build the Gantt chart.
3.    
3
Build timelines. While looking at all of the assembled information, determine how long each project step or process will take. Add this into the mix, and plot lengths for individual bars that will represent phases or processes.
  Shift times for results. With a general time frame in mind for each step or process, situate these within the greater Gantt chart to arrive at a deadline for each element. It can help to stagger processes to ensure smoother operations or eliminate cluster dates, which can overwhelm the project manager.
4.    
4
Lay out all of the bars on the graph. The Gantt chart assembles all pieces relative to a fixed deadline. Within a greater project deadline, the timeline for smaller processes becomes clear for those who are looking at the Gantt chart.
5.    
5
Evaluate dependency or relationships between phases or processes. Looking at the Gantt chart can also make it clear which parts of a project are dependent on others. Software tools can have advanced features that can help human decision makers to learn more from viewing the visual Gantt chart.
6.    
6
Implement the Gantt chart in software. Many project managers choose to take all of the information on a Gantt chart and input it into a software environment. For example, the Excel spreadsheet tool can be an effective home for a Gantt chart. Choose appropriate software and digitize the Gantt chart to help work it into a greater software architecture.
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