Chap 9.2 Estimate Activity Resource

PMBOK 6 - All rights reserved; By: Anand Bobade (nmbobade@gmail.com)
Chapter 9 –
Project Resource Management
PMP
Trainer: Anand BobadePMBOK 6th Edition, 2019, All rights reserved.
Estimate Activity
Resources
SIXTH EDITION

9.2 Estimate activity resources
Overview
Estimate Activity resource Process definition
Estimate Activity resource: ITTO
Why is Alternative Analysis?
What is Bottom up estimation?
What is resource breakdown structure?
Review

Resource Management processes
Plan Resource
management
Estimate Activity
Resources
Acquire Resources
Develop Team Manage Team Control Resources
P P P
MCE E

Estimate Activity resource -> Introduction
Human resources Material
Equipment Supplies

Complexity Resource Skills
Resource
availability
History of
performing
similar task
Estimate Activity resource -> Key Factors

Estimating type & quantities of material, human resources,
equipment or supplies required to perform each activity.
Develop more accurate cost and duration estimates.
Estimate Activity resource -> Definition
Type &
Quantities
Material
Human resources
Equipment
Supplies
Estimating
Project
Activities
Perform

Estimate activity resources -> ITTO
Expert Judgment
Bottom up estimating
Analogous estimating
Parametric estimating
Data analysis
PMIS
Meetings
Project Management
Plan
Project documents
Enterprise
environmental factors
Organizational process
assets
Resource
requirements
Basis of estimates
Resource breakdown
structure
Project document
updates
Inputs Tools & Techniques Outputs

Estimate Activity Resources -> Input
Project Management
Plan
Project documents
Enterprise
Organizational process
assets

Project
Management Plan
Estimate Activity Resources -> Input -> PMP
Resource Management
plan
Scope baseline

Project documents
Estimate Activity Resources -> Input -> Project documents
Activity list Activity attributes Cost estimates Resource calendars Assumption log Risk register

Project documents
Activity list:
A list of all activities that will be performed on project & a
description of each activity
Activity ID WBS
Id
Name Description
501 W50 Compare Furniture brands
502 W50 Find showrooms
503 W50 Get Quotes
504 W50 Compare Quotes
Estimate Activity Resources->Input->Project doc’s-> Activity list:

Project documents
Activity attributes:
• Provide additional information about activities.
• During the initial stages of the project, they include
• Activity identifier (ID), WBS ID, Activity label or name etc
Activity
description
Predecessor
activities
Successor
activities
Logical
relationships
Leads and lags
Resource
requirements
Imposed
dates
Constraints
Assumptions
Person
responsible
Geographic
area or place
Calendar
Estimate Activity Resources->Input->Project doc’s-> Activity attributes:
When Completed
they may include

Project documents
Resource calendars:
•Identifies working days & shifts on which each specific resource is available.
•Details about when & how long identified project resource will be available
Estimate Activity Resources->Input->Project doc’s-> Resource calendars
•Resource may be material, human resources, equipment etcRemember:

Project documents
Risk Register:
• Risk events may impact resource selection and availability.
• Risks related to activity sequencing, dependencies.
Estimate Activity Resources->Input->Project doc’s-> Risk Register
# Risk Probability Imp
act
Urgenc
y
Category Risk Level Risk Response
1 Continually changing
requirements
3 4 Low Scope High
2 Project involves the use
of new technology
2 3 Normal Solution Medium
3 Inexperience team
members
2 4 Immedi
ate
Resource Medium
4 Unstable organizational
environment
1 5 Immedi
ate
EEF Medium

Project documents
Cost estimates:
• Provides probable costs required to complete activities / project
work. (summary or detail)
Estimate Activity Resources->Input->Project doc’s-> Cost estimates
Estimate Cost
(Project Cost Manag.)
Estimate Activity
resources-
Resource type / Quantity can be decided
based on cost.
make or buy / Manual or automated

Organizational
process assets
Policies and procedures regarding staffing
Policies and procedures relating to rental and purchase
Historical information - types of resources used for similar work on previous projects
Estimate Activity Resources -> Input->OPA

Enterprise
Resource
location availability and skills.
Estimate Activity Resources -> Input->EEF

Expert Judgment
Bottom up
estimating
Analogous
estimating
Parametric
estimating
Data analysis PMIS Meetings
Estimate Activity resources -> Tools & Techniques

Mr. Expert
Expert
Judgment
Specialized knowledge in resource planning & estimating can provide such
expertise
Can help in choosing right resource
Identify activity resource requirement
Can perform or contribute in estimating & alternative analysis
Estimate Activity resources -> T&T -> Expert Judgment

Data analysis
Alternative Analysis:
• Many schedule activities have alternative methods of
accomplishment.
Various levels of
resource capability
or skills
Different size or
type of machines
Different tools
(hand versus
automated)
Make- rent-or-buy
decisions regarding
the resource
Analyses
focus on:
Any group or person
with specialized
knowledge in
resource planning
and estimating can
provide such
expertise
Estimate Activity resources->T&T-> Data analysis

Data analysis
Alternative Analysis:
•Example: Road construction work - Expert helping PM identifying
resource requirements through alternative analysis
Estimate Activity resources->T&T-> Data analysis
Build Manually
•Less cost
•More human
resources
•Slow delivery
Use machines
•More cost
•Less human resources
•Resource capabilities
•Faster delivery
•Machines availability
21
• Manual work may cost less as cheap human resources are available but
may need more time to complete project.
Cost
• Machine developed road will give better quality hence maintenance
cost will be less. Also, delivery will be faster.
Quality:
• Machines may not be available. Bringing machines to the location may
not be possible. Human resource to operate may not be available.
Risk:

Bottom up
estimating
Estimating resources or cost by aggregating estimates of lower-level components of WBS.
Activities are broken into smaller activities which can be
estimated.
There resource needs are estimated.
Resources are assigned to each activity.
These estimates are aggregated into a total quantity of
resources.
Estimate Activity resources->T&T-> Bottom up estimate

PMIS
Optimizing Resource utilization
Resource breakdown structure Resource availability
Resource rate
Resource calendar
PMIS has capability to:
Plan, organize & manage the resource pools
Develop resource estimates
Can automatically resolve scheduling
conflicts
Can help perform workload analysis
Can help optimize resource utilization
Estimate Activity resources->T&T-> PMIS

Resource
requirements
Basis of estimates
Resource
breakdown
structure
Project document
updates
Estimate Activity resources -> Outputs

Resource
requirements
The types and quantities of resources required for each activity in a work package.
Aggregated to determine the estimated resources for each work package and each work period.
Resource
Type/
Activity
Resource
Quantity/
Activity
Resource
for Work
Package
Estimate Activity Resource->Outputs-> Resource Requirements

Resource
breakdown
structure
Hierarchical representation of resources by category and type.
RBS is useful for organizing & reporting project schedule data with resource utilization information.
Construction Project
Labor
Managers
Manager1
Manager2
Workers
Worker1
Worker2
Worker3
Material
Building
Office setup
Equipment
Desktop
Laptop
Printer
Projector
Supplies
Printer
Cartridges
Papers
Stationary
Estimate Activity resources -> Outputs-> RBS

Estimate Activity resources->Outputs->Project document update
•Attribute for new activities
•Change in attributes of older activities
Activity
attributes
•Resource related RiskRisk register
•Update Project & recourse calendar
Resource
Calendars
Activity attributes Assumption log Lessons learned register
Project document
updates

Estimate Activity resources -> Review
Why to estimate activity resources?
What is Alternative Analysis?
What is published estimation data?
What is Bottom up estimation?
What is resource breakdown structure?
What is PMIS?

Chap 9.2 Estimate Activity Resource

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