There are several types of constraints that can come from different factors; owner, climatic, organization, a period of work or non-work, end of phase, contractual that we can separate into 3 types that will be treated differently when developing the schedule:
This could be the move of the owner of a room, the beginning of spring, cut-off date.
Here we will see how to treat two types of periods, i.e. a period that cannot be worked for example an asphalt activity which cannot be done in winter and periods that one must work for example a school which allows us to work only in the summer.
Finish constraints are for example a phase of the project that must be completed by a contractual date.
