Industrial Engineering and Production Management
When slack of an activity is positive

Any one of the above
It represents a situation where extra resources are available and the completion of project is not delayed
The activity is critical and any delay in its performance will delay the completion of whole project
It represents that a programme falls behind schedule and additional resources are required to complete the project in time

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Industrial Engineering and Production Management
Scheduling

Determines the programme for the operations
Prescribes the sequence of operations to be followed
Regulates the progress of job through various processes
Is concerned with starting of processes

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Industrial Engineering and Production Management
Slack represents the difference between the

Latest allowable time and the normal expected time
Normal allowable time and the latest expected time
Proposed allowable time and the earliest expected time
Latest allowable time and the earliest expected time

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