Quick Link for Time Management
Time Managment 6.1 define activities
Time Management 6.2 sequence activities
Time Managment 6.3 Estimate Activity Resources
Time Management 6.4 Estimate Activity Durations:
Time Management 6.5 Develop Schedule:
Time Management 6.6 Control Schedule:
Determining what resources (people, equipment, material and
facilities) will be needed, along with the associated quantities and time
resource. Resource issues also apply to the cost estimating Process.
Estimate Activity Resources
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Inputs
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Tools
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Outputs
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1. Activity
list
2. Activity
attributes
3. Resource
calendars
4. Enterprise
environmental factors
5. Organizational
Process assets
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1. Expert
judgment
2. Alternatives
analysis
3. Published
estimating data
4. Bottom-up
estimating
5. Project
management software
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1. Activity
resource requirements
2. Resource
breakdown structure (RBS)
3. Project
document updates
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Five key inputs for Estimate Activity Resources
1. Activity list: Resourcing estimates
should be done for the associated activities.
2. Activity Attributes: Activity attributes
were developed during activity definition and now provide a primary source of
data for estimating the resources required for each activity.
3. Resource Calendars: An organization’s
resource calendar system should provide information such as when a resource is
available for a work assignment, experience level of a given resource and skill
set for individuals.
4. Enterprise Environmental Factors:
information about the existing resource infrastructure (resource availability
and skill sets) would be relevant at this step.
5. Organizational Process Assets:
Organizational Process Assets that would affect the estimation of resources
required to support project activities include:
·
Staffing policies
·
Procedures for renting or purchasing supplies
and equipment
·
Historical information about resource usage on
similar projects
Five Key Tools for Estimate Activity Resources:
1. Expert Judgment: Appropriate subject
matter experts will help judge the accuracy of resource estimates.
2. Alternatives Analysis: This analysis
considers the various options for doing the work and assures that appropriate
resource estimates are available. For example, a project might pursue either of
two technological possibilities or there may be a choice between manual and
automated tools/processes, and so on.
3. Published Estimating Data: Some
industries and trade groups collect and publish cost, schedule, and resource
data for specific types of work.
4. Bottom-up Estimating: lf a schedule
activity cannot be estimated with reasonable confidence; the work may be
decomposed to a lower level to provide more detail. The bottom-up approach then
aggregates these estimates at higher levels.
5. Project Management Software: Most
project management software is quite good at organizing resource data for
individual team members or groups (sometimes called resource pools). The
software can usually define:
·
Resource availability
·
Resource rates
·
Resource calendars
·
Resource breakdown structures (RBS)
Three Key Outputs for
Estimate Activity Resources:
1. Activity Resource Requirements:
identifies the type and quantity of resources needed to support each individual
schedule activity. lf the work was decomposed below the work package (schedule
activity), the resource requirements are added (aggregated) to determine total
resource needs for the work package. Estimates should include:
·
The basis of the estimate (method used)
·
Any assumptions that were made
·
Resource availability
·
Resource quantity
2. Resource Breakdown structure: whereas
the WBS focuses primarily on activities, the RBS is a hierarchical structure
focusing primarily on resources. The RBS identifies activities to which the
resources are assigned as well as the associated time frames. The RBS is also
useful in determining whether a resource is available in any given time period.
3. Project Document updates: Project
documents that might be updated include:
·
Activity list
·
Activity attributes
·
Resource calendars
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