With the use of a precedent diagram that insertion of

chart and still accurately anticipate the impact of the change on the entire schedule. With the use
of a precedent diagram, that insertion of an activity is a relatively simple matter. Each activity
must generally have at least one predecessor and at least one successor. With the precedence
diagram, the logic is more readily apparent and incorporating a new activity is a simple matter.

The ease for adding activities for a precedence diagram, such as critical tasks, noncritical tasks,
and slack time. The program shows the relationship of the tasks to each other. Thus, allowing
for what-if, worst-case, best-case in most likely scenarios. Key elements also include
determining predecessors and defining attributes, such as, early start date, late start date, early
finish date, late finish date, duration, activity name, WBS reference, and slack/float time. Doing
these tasks on a bar chart would be infuriating to whoever is doing this task on a bar chart.
Constraints
Constraints such as time, scope, and cost all have a role in any project. Cost is the
financial constraints of a project, also known as the project budget. Having the financial
commitment of a project is dependent on several variables. There are the resources involved,
from materials to people, which include labor costs. There are other outside forces that can
impact project, which must be considered in the cost of the work. There are also the fixed and
variable costs inherent in any project, such as the economic cost of teams with varying skills in
productivity, which must be calculated. This can seriously come into play with the use of
contract workers or outsourcing. Cost processes include cost estimating to figure out the needed
financial commitment for all the resources necessary to complete the job. Cost budgeting creates
a cost baseline. Cost control works to manage the fluctuation of costs throughout the project.