Apply the critical chain process assuming that testing is a bottleneck resource (and that the other resources required are not constrained).Use due date as a basis for priority.Apply the critical chain process to schedule, identifying buffers by type:

Use resource buffers before bottleneck resource

Use feeder buffers before interfaces between slack activities and critical activities

Use project buffer

Assumptions:

analysis must be done prior to production

production completed prior to testing

testing done prior to installation.

the schedule:

JobAnalysisProductionTesting InstallationDue date

A14 weeks4 weeks4 weeks2 weeksWeek 15

A24 weeks4 weeks4 weeks2 weeksWeek 10

A34 weeks8 weeks4 weeks2 weeksWeek 20