Gantt charts (sometimes misspelled "gant charts " are useful tools for analyzing and planning complex projects . They :
1-Help you to plan out the task that need to be completed
2-Give you a basis for schedulling when these tasks will be carried out
3- Allow you to plan the allocation of resources needed to complete the project , and
4-Help you to work out the critical path for a project where you must complete it by a particular date .
When a project is under way , Gantt charts help you to monitor whether the project is on schedule . If it is not , it allows you to pinpoint the remedial action necessary to put it back on schedule .
Sequential and parrallel activities :
An essential concept behind project planning ( and critical path analysis is that some activities are depend on other activities being completed first . As a shallow example , it is not a good idea to start building a bridge before you have designed it !
The dependent activities need to be completed in a sequence , with each stage being more-or-less completed before the next activity can begin . We can call dependent activities "sequential " or "linear" .
Other activities are not dependent on completion of any other tasks . These may be done at any time before or after a particular stage is reached .these are nondependent or "parallel" tasks .
How to use tool :
To draw up a gantt diagram (Gant diagram ) , follow these steps :
1- List all activities in the plan
2- Head up graph paper with the days or weeks through to task completion
3- Plot the tasks on to the graph paper .
4- Schedule activities
5-Pressenting the analysis
We will speak compeletely about all stages of making a gantt chart later .
You can see an example of a complete Gantt chart in this address :