Scheduling 05

Types of Schedules (cont’d)
• Short duration schedules
– Derived from the master schedule
– Typically a bar chart
– Used for near-term planning
– Shows 2 weeks past, current week and 2
weeks forward

Relationships
• Relationships are the
interdependencies between one
activity and another or group of
activities
• The four types of relationships are:
– Finish-to-Start
– Start-to-Start
– Finish-to-Finish
– Start-to-Finish

Relationships (cont’d)
• Finish-to-Start
– The most common type of scheduling
activity relationship. Simply stated,
the start of the next activity is
dependent upon the completion of
the previous activity
– For example, on a construction
project you can’t pour the concrete
until the reinforcing steel is in place

Relationships (cont’d)
• Start-to-Start
– Start-to-Start relationship implies that
an activity can start once another
specified activity has started
– For example, the design phase can start
as soon as the permitting process has
started

Relationships (cont’d)
• Finish-to finish
– Finish-to-Finish relationship implies
that the completion of an activity is
dependent upon the completion of
another activity. This relation ship is
commonly used with start-to-start
relationships
– For example, the software user’s
manual can be started after the start
of coding and testing but can’t be
completed until coding and
debugging is completed

Relationships (cont’d)
• Start-to-Finish
– Start-to-Finish relationship implies that
an activity can’t be completed until the
predecessor activity has started
– This type of relationship is very rarely
used