Dear Respected Research Gate Members,
How we develop the “Project Schedule” for new Projects?
Thanks & Regards
Dear Muhammad
In reality Scheduling is only a part of the whole process.
You need to plan a work, then schedule and finally to control it.
For this reason, the activity is known as Planning, Scheduling and Control
In planning you use a network of activities all of them linked. For instance, if you need to build the foundation for a large equipment, you first need to excavate (Task A). When it is finished you can pour concrete (Task B), and that precedence must be kept.
Therefore, Task A precedes task B. This is indicated by using to arrows, one for A and the other for B, and making a graph where A precedes B
Of course, there are many activities before starting A and after finishing B and all of them must be connected.
Once you have the network complete, with perhaps hundreds or thousands of arrows, you need to put a duration fort each one. Then, following a simple algorithm you compute which is the shortest path from the very beginning and the very end. This is called ‘The Critical Path’
Once you are finished with this scheme you will have all activities with a value of commencement and a value of finishing and all of them interrelated.
At that point you start the scheduling, that is, converting the duration of each task in horizontal lines with a length proportional to its duration. You produce then the ‘Gantt Chart’
With this you can compute the S curve, which is the summation of all activities, measured in Euros, and constitutes the economic and financial tool that says how much you have spent at a certain date This id a fundamental document that is generally incorporated in the contract documents.
Along the project you compare real advancement with projected advance and then you can get ratios for delays or advancements and ratios for higher or lesser costs than estimated
Don’t get discouraged, the network is very simple to construct
For small projects you can compute the critical path by hand, it is only a matter of additions and subtractions, however for large projects you need specialized software (very expensive)
The two most important are ’Project’ by Microsot and ‘Primavera’ by Oracle. They can do the planning the scheduling and draw the projected advance curve, but most important they permit the rapid calculation of the critical path and determination of critical activities and floats, and this is done continuously. There is a lot of information on the internet. Entre with Critical Path Method or CPM
If you have any doubt pls don’t hesitate in contacting me
Dear Dr. Nolberto Munier,
Thanks for comprehensive expert inputs. Thanks also to spare your precious time for valuable answer.
Thanks & Regards
Many tools available for scheduling the projects i.e Microsoft Project, www.dotproject.net, Excel, primavera etc.
Most important is to Monitor tasks, Gantt views of project, one page views for executives. rollout and more complex views for work teams, Critical Paths, Inputs from multiple teams that roll up to project manager, Dependencies and Resources assigned to tasks.
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