Allocating and Leveling Resources

Lecture Notes: Allocating and Levelling Resources

 Introduction

In project scheduling, having a great timeline means little if the resources — people, equipment, or materials — aren’t available when needed.
That’s where resource allocation and resource levelling come in. They ensure that work is matched with capacity, so projects stay realistic and sustainable.

Understanding Resource Allocation

Definition

Resource allocation is the process of assigning available resources (human, financial, and physical) to project activities based on their requirements and priorities.
It answers the question:

“Who or what will do this task, and when?”

Objectives of Resource Allocation

• Ensure each activity has the required resources to be completed on time.
• Optimize utilization — avoiding both idle time and overwork.
• Support cost and schedule efficiency.
• Balance resource demand and availability across all project activities.

Steps in Resource Allocation

1. Identify Resource Requirements
   • Review each activity’s needs in terms of skill, equipment, or material.
   • Example: A task may need two software developers and one tester.
2. Determine Resource Availability
   • Check internal teams, contractors, and equipment schedules.
   • Identify constraints such as leave, holidays, or maintenance.
3. Assign Resources to Activities
   • Match available resources to activities based on capability and timing.
   • Prioritize critical path activities for early assignment.
4. Adjust for Conflicts and Bottlenecks
   • Use tools like a resource histogram or RACI chart to visualize over-allocation.
   • Reassign or delay tasks where needed.
5. Monitor and Update Regularly
   • Resource plans must evolve with project changes — new tasks, delays, or personnel shifts.

Tools and Techniques for Resource Allocation

Resource Leveling

Definition

Resource leveling is the process of adjusting the project schedule to address over-allocation or resource conflicts, ensuring no individual or resource is overloaded.

When leveling, the project manager may delay or split activities within their float (slack) or even extend the overall project duration to achieve balance.

Purpose of Resource Leveling

• Prevent burnout or inefficiency caused by over-assigned team members.
• Create a realistic and sustainable schedule.
• Balance workloads to maintain consistent performance.
• Avoid conflicts between parallel projects using the same resources.

Resource Leveling vs Resource Smoothing

Techniques for Resource Leveling

1. Critical Path Analysis:
   Adjust non-critical activities to reduce overload without delaying the overall project.
2. Resource Histogram Review:
   Identify periods of excessive demand and smooth them by shifting start dates.
3. Heuristic Methods (Rules of Thumb):
   Prioritize tasks using simple rules such as:
   • “First come, first served.”
   • “Highest priority or least slack first.”
4. Software Optimization:
   Many project management tools automatically reallocate or delay tasks to remove overloads.

Example: Resource Leveling in Action

Scenario:

• Two tasks — Develop Interface and Create Database — both require the same developer.
• Scheduled at the same time (Week 2–4).
• Developer can only handle one full-time task.

Before Leveling:
Both tasks overlap → Over-allocation.

After Leveling:

• Delay Create Database to start after Develop Interface (Week 5–7).
• Project may finish a week later, but resource use is now realistic.

 Benefits of Effective Allocation and Leveling

• Improved resource efficiency and morale.
• Reduced schedule risk and last-minute conflicts.
• Enhanced predictability in delivery.
• Balanced workload leads to better quality outputs.

Challenges in Resource Allocation and Leveling

• Limited availability of skilled personnel.
• Frequent project scope changes.
• Inaccurate or outdated resource data.
• Pressure to meet deadlines despite limited capacity.

Conclusion

Resource allocation ensures the right people and tools are assigned to the right tasks, while resource leveling ensures they’re not stretched beyond their limits.
Together, they make the project schedule achievable, sustainable, and efficient.

A good schedule isn’t just about time — it’s about balance between work, capacity, and reality.