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Scheduling Resources and Costs - Coggle Diagram
Scheduling Resources and Costs
The Resource Scheduling Problem
Resources and Priorities
Project network times are not a schedule until resources have been assigned.
Cost estimates are not a budget until they have been time-phased.
Resource Smoothing (or Leveling)
Resource-Constrained Scheduling
Types of Project Constraints
Technical or Logic Constraints
Constraints related to the networked sequence in which project activities must occur
Physical Constraints
Activities that cannot occur in parallel or are affected by contractual or environmental conditions
Resource Constraints
The absence, shortage, or unique interrelationship and interaction characteristics of resources that require a particular sequencing of project activities
People
Materials
Equipment
Classification of a Scheduling Problem
Classification of Problem
Using a priority matrix will help determine if the project is time or resource constrained.
Time-Constrained Project
Must be completed by an imposed date.
Resource-Constrained Project
Is one in which the level of resources available cannot be exceeded.
Resource Allocation Methods
Limiting Assumptions
Splitting activities is not allowed—once an activity is start, it is carried to completion.
Level of resources used for an activity cannot be changed.
Risk Assumptions
Activities with the most slack pose the least risk.
Reduction of flexibility does not increase risk.
The nature of an activity (easy, complex) doesn’t increase risk.
Time-Constrained Projects
Require use of leveling techniques that focus on balancing or smoothing resource demands.
Use positive slack (delaying noncritical activities) to manage resource utilization over the duration of the project.
Must be completed by an imposed date.
Resource Demand Leveling Techniques for Time-Constrained Projects
Resource-Constrained Projects
Resources are limited in quantity or availability.
Activities are scheduled using heuristics (rules-of-thumb)
The parallel method is used to apply heuristics
Resource-Constrained Schedule
Computer Demonstration of Resource-Constrained Scheduling
EMR Project
Problem
Splitting
A scheduling technique for creating a better project schedule and/or increase resource utilization
Benefits of Scheduling Resources
Leaves time for consideration of reasonable alternatives:
Provides information for time-phased work package budgets to assess:
Assigning Project Work
Reasons why we should not always assign the best people the most difficult tasks
Factors to be considered in deciding who should work together
Multiproject Resource Schedules
Multiproject Scheduling Problems
Inefficient resource application
Resource bottlenecks
Overall project slippage