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9.2 Estimate Activity Resources
- 2. Coincides with PMBOK 9.2 Process Group and Knowledge Area Mapping Knowledge Areas Initiating Planning Process Group Executing Process Group Monitoring and Controlling Process Group Closing Process Group 4. Project Integration Management 4.1 Develop Project Charter 4.2 Develop Project Management Plan 4.3 Direct and Manage Project Work 4.4 Manage Project Knowledge 4.5 Monitor and Control Project Work 4.6 Perform Integrated Change Control 4.7 Close Project or Phase 5. Project Scope Management 5.1 Plan Scope Management 5.2 Collect Requirements 5.3 Define Scope 5.4 Create WBS 5.5 Validate Scope 5.6 Control Scope 6. Project Schedule Management 6.1 Plan Schedule Management 6.2 Define Activities 6.3 Sequence Activities 6.4 Estimate Activity Durations 6.5 Develop Schedule 6.6 Control Schedule 7. Project Cost Management 7.1 Plan Cost Management 7.2 Estimate Costs 7.3 Determine Budget 7.4 Control Costs 8. Project Quality Management 8.1 Plan Quality Management 8.2 Manage Quality 8.3 Control Quality 9. Project Resource Management 9.1 Plan Resource Management 9.2 Estimate Activity Resources 9.3 Acquire Resources 9.4 Develop Team 9.5 Manage Team 9.6 Control Resources 10. Project Communications Management 10.1 Plan Communications Management 10.2 Manage Communications 10.3 Monitor Communications 11. Project Risk Management 11.1 Plan Risk Management 11.2 Identify Risks 11.3 Perform Qualitative Risk Analysis 11.4 Perform Quantitative Risk Analysis 11.5 Plan Risk Responses 11.6 Implement Risk Responses 11.7 Monitor Risks 12. Project Procurement Management 12.1 Plan Procurement Management 12.2 Conduct Procurements 12.3 Control Procurements 13. Project Stakeholder Management 13.1 Identify Stakeholders 13.2 Plan Stakeholder Engagement 13.3 Manage Stakeholder Engagement 13.4 Monitor Stakeholder Engagement Estimate Activity Resources
- 3. What is it? Estimate Activity Resources is the process of estimating team resources and the type and quantities of materials, equipment, and supplies necessary to perform project work Why? The key benefit of this process is that it identifies the type, quantity, and characteristics of resources required to complete the project. Estimate Activity Resources Coincides with PMBOK 9.2
- 4. Estimate Activity Resources Coincides with PMBOK 9.2 Inputs Tools & Techniques Outputs 1. Project management plan • Resource management plan • Scope baseline 2. Project documents • Activity attributes • Activity list • Assumption log • Cost estimates • Resource calendars • Risk register 3. Enterprise environmental factors 4. Organizational process assets 1. Expert judgment 2. Bottom-up estimating 3. Analogous estimating 4. Parametric estimating 5. Data analysis • Alternatives analysis 6. Project Management Information System 7. Meetings 1. Resource requirements 2. Basis of estimates 3. Resource breakdown structure 4. Project documents updates • Activity attributes • Assumption log • Risk register Inputs, Tools & Techniques, Outputs
- 5. Coincides with PMBOK 9.2 9.2 Estimate Activity Resources Project Management Plan Enterprise/Orga nization • Resource requirements • Basis of estimates • Resource breakdown structure • Resource management plan • Scope baseline • Enterprise environmental factors • Organizational process assets Project Documents • Assumption Log • Lessons Learned Register • Activity attributes Project Documents • Activity attributes • Activity list • Assumption log • Cost estimates • Resource calendars • Risk register Estimate Activity Resources
- 6. Overview The Estimate Activity Resources process is closely coordinated with other processes, such as the Estimate Costs process. Example: • An automotive design team will need to be familiar with the latest automated assembly techniques. The requisite knowledge could be obtained by hiring a consultant, by sending a designer to a seminar on robotics, or by including someone from manufacturing as a member of the project team. Coincides with PMBOK 9.2 Estimate Activity Resources
- 7. Estimate Activity Resources - Inputs Coincides with PMBOK 9.2 Project Management Plan Project management plan components include: • Resource management plan • Scope baseline
- 8. Coincides with PMBOK 9.2 Project Documents Project documents that can be considered as inputs for this process include: • Activity attributes • Activity list • Assumption log • Cost estimates • Resource calendars • Risk register Estimate Activity Resources - Inputs
- 9. Enterprise Environmental Factors The enterprise environmental factors that can influence the Estimate Activity Resources process include: • Resource location, • Resource availability • Team resource skills • Organizational culture • Published estimating data • Marketplace conditions Coincides with PMBOK 9.2 Estimate Activity Resources - Inputs
- 10. Organisational Process Assets The organizational process assets that can influence the Estimate Activity Resources process include : • Policies and procedures regarding staffing • Policies and procedures relating to supplies and equipment • Historical information regarding types of resources used for similar work on previous projects. Coincides with PMBOK 9.2 Estimate Activity Resources - Inputs
- 11. Estimate Activity Resources – Tools & Techniques Coincides with PMBOK 9.2 Expert Judgement Expertise should be considered from individuals or groups with specialized knowledge or training in team and physical resource planning and estimating.
- 12. Coincides with PMBOK 9.2 Bottom-Up Estimating Team and physical resources are estimated at the activity level and then aggregated to develop the estimates for work packages, control accounts, and summary project levels. Estimate Activity Resources – Tools & Techniques
- 13. Coincides with PMBOK 9.2 Analogous Estimating Analogous estimating uses information regarding resources from a previous similar project as the basis for estimating a future project. It is used as quick estimating method and can be used when the project manager can only identify a few top levels of the WBS. Estimate Activity Resources – Tools & Techniques
- 14. Coincides with PMBOK 9.2 Parametric Estimating Parametric estimating uses an algorithm or a statistical relationship between historical data and other variables to calculate resource quantities needed for an activity, based on historical data and project parameters. This technique can produce higher levels of accuracy depending on the sophistication and underlying data built into the model. Estimate Activity Resources – Tools & Techniques
- 15. Coincides with PMBOK 9.2 Data Analysis A data analysis technique used in this process includes, alternatives analysis. • Alternatives analysis is used to evaluate identified options in order to select the options or approaches to use to execute and perform the work of the project. Alternatives analysis assists in providing the best solution to perform the project activities, within the defined constraints. Estimate Activity Resources – Tools & Techniques
- 16. Coincides with PMBOK 9.2 Project Management Information System Estimate Activity Resources – Tools & Techniques Project management information systems can include resource management software that can help plan, organize, and manage resource pools and develop resource estimates. Depending on the sophistication of the software, resource breakdown structures, resource availability, resource rates, and various resource calendars can be defined to assist in optimizing resource utilization.
- 17. Coincides with PMBOK 9.2 Meetings Estimate Activity Resources – Tools & Techniques The project manager may hold planning meetings with functional managers to estimate the resources needed per activity, level of effort (LoE), skill level of the team resources, and the quantity of the materials needed. Participants at these meetings may include the project manager, the project sponsor, selected project team members, selected stakeholders, and others as needed.
- 18. Coincides with PMBOK 9.2 Resource Requirements Resource requirements identify the types and quantities of resources required for each work package or activity in a work package and can be aggregated to determine the estimated resources for each work package, each WBS branch, and the project as a whole. The resource requirements’ documentation can include assumptions that were made in determining which types of resources are applied, their availability, and what quantities are needed. Estimate Activity Resources – Outputs
- 19. Coincides with PMBOK 9.2 Basis of Estimates The amount and type of additional details supporting the resource estimate vary by application area. Supporting detail for resource estimates may include: • Method used to develop the estimate • Resources used to develop the estimate • Assumptions associated with the estimate • Known constraints • Range of estimates • Confidence level of the estimate • Documentation of identified risks influencing the estimate. Estimate Activity Resources – Outputs
- 20. Coincides with PMBOK 9.2 Resource Breakdown Structure The resource breakdown structure is a hierarchical representation of resources by category and type. Examples of resource categories include but are not limited to labor, material, equipment, and supplies. Estimate Activity Resources – Outputs Resource Breakdown Structure Sample
- 21. Coincides with PMBOK 9.2 Project Document Updates Project documents that may be updated as a result of carrying out this process include: • Activity attributes • Assumption Log • Risk Register Estimate Activity Resources – Outputs
Editor's Notes
- This process is performed periodically throughout the project as needed.
- A construction project team will need to be familiar with local building codes. Such knowledge is often readily available from local sellers. If the internal labor pool lacks experience with unusual or specialized construction techniques, the additional cost for a consultant may be the most effective way to secure knowledge of the local building codes.
- Resource management plan - The resource management plan defines the approach to identify the different resources needed for the project. It also defines the methods to quantify the resources needed for each activity and aggregates this information. Scope baseline - The scope baseline identifies the project and product scope necessary to meet the project objectives. The scope drives the needs for both team and physical resources.
- Activity attributes - Activity attributes provide the primary data source for use in estimating team and physical resources required for each activity on the activity list. Activity list - The activity list identifies the activities that will need resources. Assumption log - The assumption log may have information on productivity factors, availability, cost estimates, and approaches to work that will influence the nature and number of team and physical resources. Cost estimates - The cost of resources may impact resource selection from the quantity and skill level perspectives. Resource calendars - A resource calendar identifies the working days, shifts, start and end of normal business hours, weekends, and public holidays when each specific resource is available. Risk register - The risk register describes the individual risks that can impact resource selection and availability.
- For example, if an activity needs 4,000 hours of coding and it needs to finish it in 1 year, it will require two people to code (each doing 2,000 hours a year).
- The amount of detail and the level of specificity of the resource requirement descriptions can vary by application area.
- Regardless of the level of detail, the supporting documentation should provide a clear and complete understanding of how the resource estimate was derived.
- Resource types may include the skill level, grade level, required certifications, or other information as appropriate to the project. In Plan Resource Management, the resource breakdown structure was used to guide the categorization for the project. In this process it is a completed document that will be used to acquire and monitor resources.
- Activity attributes - The activity attributes are updated with the resource requirements. Assumption log - The assumption log is updated with assumptions regarding the types and quantities of resources required. Additionally, any resource constraints are entered including collective bargaining agreements, continuous hours of operation, planned leave, etc. Lessons learned register - The lessons learned register can be updated with techniques that were efficient and effective in developing resource estimates, and information on those techniques that were not efficient or effective.