Every project starts with a well-defined plan and schedule. But the reality offers a lot of uncertainty so the project may very well not evolve according to the initial plan. The result is that measures are required to adjust the state of the project to reflect the new reality.
Planning a project is not an easy job. It requires some knowledge and an amount of experience. The steps are simple… Create the list of activities that need to be performed, structure them accordingly in phases and sub-phases and establish durations (or amount of work depending on the types of tasks). Next create the project flow by adding dependencies between tasks. This way it is established the order in which tasks are executed.
Up to this point there is nothing related to time and this is the biggest hint to keep in mind: avoid hard constraints. As long as tasks are scheduled to start as soon as possible then every task will depend only on its predecessors and on the project estimated start. This is the perfect project template that can be easily shifted in time by just changing the project estimated start.
It is unlikely that a novice project manager will be able to produce such a scalable project plan… There are situations when it is just impossible to keep a project flexible even for a senior project managers. But this is due to the nature, the requirements and the constrains of the project.
How To Adjust The Schedule
So the schedule is done and the project is ready to go. But it may take no more than one week for the project plan to stop corresponding to the reality: some tasks take longer than estimated, others are executed faster or even worse the project is put on hold for various reasons (lack of funds or personnel, a financial crisis period, bad weather conditions and the list can continue). What now? Synchronizing the old plan with the reality takes some effort and attention.
It is obvious that the already completed or started tasks will remain at their location. The only discussion is about moving the uncompleted ones and/or splitting the tasks that are partially completed. This adjusting process is similar to planning the project but done on a smaller scale. If the initial plan was not time flexible then each particular conflict needs to be manually solved.
As mentioned above the best case is the one when the plan was created with as few as possible hard constraints. This allows an increased flexibility when it comes to shifting the activities in time.
Highly Dynamic Schedules
Small and simple projects can be managed using simple tools like a paper and pencil or spreadsheets but this is not valid anymore with larger and more complex projects. The bigger the project is and the more frequent changes are made to the original schedule the harder it is to adjust it. More time is spent and the probability or error appearance is higher. Imagine doing all these week by week… a titanic effort.
In such situations it is highly recommended to use a project management software that has the capability to re-schedule the project starting from a given reference date. Such a software will automatically adjust the plan where possible and leave the hard constraints in the hand of the project manager by marking them as conflicts.
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