Presentation Project Management Final

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    Scheduling Resourcesand Costs

    Chapter 8

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    Scrambled Eggs

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    Introduction

    Resource dependency > technological/logical

    dependency

    Types of Resource Constraints:- People

    - Material

    - Equipment

    - physical factors

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    Introduction

    Resource scheduling problem:

    - time constrained projects

    - resource constrained projects

    Resource schedule

    Assign time-phased costs

    Project budget base-line

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    Resource allocation methods

    Time-constrained project focuses on resource utilization

    SMOOTHING resource demand

    3 goals of Smoothing:

    Reduce the peak of demand for the resource

    Reduce resources over the life of the project

    Minimize the fluctuations in resource demand

    Drawbacks:

    Loss of flexibility

    Increase of the risk of delaying project

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    Resource allocation methods

    Resource-constrained project focuses on resource

    prioritization, allocation:

    MATHEMATICAL solutions >> Impractical for large problems

    Use of HEURISTICS

    Heuristic priority rules:

    1. Minimum slack

    2. Smallest duration

    3. Lowest activity identification number

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    Computer demonstration of

    resource-constrained scheduling ! The software is not managing the project, but a tool

    1st option: leveling within the slack: goal? To preserve the

    original finished date

    2nd option: Leveling outside of slack: csq? Extension of the

    duration project

    Drawbacks:

    Reduce slacks >> Reduce flexibility

    Increase the number of critical activities

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    Splitting tasks

    Scheduling technique towards better project schedule and

    increase resource utilisation

    Starting diversion (resource, equipment or people)

    resumption

    Limitationinterruption/Large start up or shut down costs

    Lengthens the time of the original activity

    Conclusion costs are minimal and time is not absolutely

    constraint

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    Benefits of scheduling

    resources

    Time to consider reasonable alternative

    Cost time trade offs

    Changing priorities

    Ability to prepare time phased work package budgets with

    dates

    Flexibility assessment

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    Assigning project work

    Match demands & requirements with qualification &

    experience

    Temporary usage

    Who does what and who works with whom?

    Matching experienced with new workers

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    Multi-project Resource Schedules

    Overall Schedule Slippage

    Inefficient resource utilization

    Resource bottlenecks

    Solutions:

    First come first served system > queue system

    Information Systems:

    Outsourcing:

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    Resource Schedule to develop a

    project cost baseline

    Why do we need a time-phased budget baseline

    Throughout the life of the project there is no way to know how

    much work was accomplished for the money spent

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    Questions?