Project schedule is dependent on multiple factors:
a. Duration and working-time period: For a project of x duration, if all the time period is working the project should end by end of xth day from start date of project.
b. Task dependency: the task may depend on previous tasks, if they complete as planned, the project should complete by identified end date.
Also, resource availability impact project schedule. To understand this, let’s create a simple project schedule with two tasks as follow:
understanding impact of "Resource Availability" on project schedule
From above, as both the resources are available, the entire project should end in one working day.
Assume, for above date (21st March, 2012), resource “B” is unavailable to project. To make this resource unavailable for 21st March, double click resource “B” from Resource sheet and enter availability from 22nd March as follow:
Understanding impact of resource availability on Project Schedule
On levelling resource (if project level setting is not set to “Manual”) in above case, MS Project automatically calculates the new schedule (adjusting resource availability) to March 23rd, 2012:
Project schedule as calculated by MS Project, based on resource availablility
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