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Defining Dependancies & Constraints?

By bryanmorison ·
By definition, what is the difference between project dependencies and project constraints?
Any examples would be appreciated!

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by TheChas In reply to Defining Dependancies & C ...

In there simplest form, dependencies for a task are tasks that have to happen either before the task can start, or must be completed before the task can end.

Constraints are usually limited resources that must be used.
It could be budget: you can only spend so much per week on the project.

A resource center: Your document center could have limited capacity and can only produce so many documents at a time for a given project.

An individual who has a critical part in the project, but has other tasks that limit his / her availability.

Take the example of building a house.
Putting on the roof is dependent on setting the rafters / trusses.
Setting the rafters is dependent on having the walls up.

The electrical, plumbing and drywalling are are constrained by the availability of inspectors. And, interdependent as parts of all 3 tasks are intertwined.
The rough wiring and plumbing must be completed and inspected before the drywall can go up.
The drywall must be up before the final electrical and plumbing work can be completed.

The entire project may be constrained by available materials or funds.

Chas

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