Session 7 4th edition PMP

Project Time Management

Knowledge Area

Process

Initiating Planning Executing Monitoring & Control Closing

Time  

Activity DefinitionActivity SequencingActivity Resource EstimatingActivity Duration EstimatingSchedule Development

  Schedule Control  

Enter phase/Start project

Exit phase/End project

InitiatingProcesses

ClosingProcesses

PlanningProcesses

ExecutingProcesses

Monitoring &Controlling Processes

Project Time Management

Types of Estimating

1-Bottom up estimating-the work within the activity

is decomposed into more

detail.

-The resource needs are

estimated. These estimates

are then aggregated into a

total quantity for each of

the activity’s resources

2 Analogous Estimating

Analogous estimating is most reliable when the previous activities are similar in fact and not just in appearance, and theproject team members preparing the estimates have the needed expertise-Analogous estimating is generally less costly and time consuming than other techniques, but it isalso generally less accurate

Parametric Estimating

Parametric estimating uses a statistical relationship between historical data and other variables(e.g., square footage in construction) to calculate an estimate for activity parameters, such as cost,budget, and duration.

Three-Point EstimatesMost likely (tM). The duration of the activity, given the resources likely to be assigned

Optimistic (tO).The activity duration in the best-case scenario

Pessimistic (tP).The activity duration in the worste-case scenario

tE = (tO + 4tM + tP)/6

Expected (tE)

Estimate Activity Resources• Process of estimating the type and quantities of material, people, 

equipment or supplies required to perform each activity.

Inputs

1. Activity list2. Activity attributes3. Resource Calendars4. Enterprise environmental factors

5. Organizational process assets

Tools & Techniques

1. Expert judgment2. Alternatives analysis3. Published estimating data

4. Bottom-up estimating5. Project management software

Outputs

1. Activity resource requirements

2. Resource breakdown structure

3. Project document updates

3 Resource Calendars

-Information on which

resources are potentially

available

-The composite resource

calendar includes the

availability, capabilities ,

and skills of human

resources

Alternatives Analysis

-Many schedule activities have alternative methods of accomplishment. -They include using variouslevels of resource capability or skills, different size or type of machines, different tools (hand versus automated), and make-or-buy decisions regarding the resource

Published Estimating Data

Several companies routinely

publish updated production

rates and unit costs of

resources for an extensive

array of labor trades, material,

and equipment for different

countries and geographical

locations within countries.

Activity Resource Requirements

requirements documentation for each activity can

include the basis of estimate for each resource, as

well as the assumptions that were made in

determining which types of resources are applied,

their availability, and what quantities are used.

Project Title: Date Prepared:

WBS ID

Type of Resource Quantity Comments

From WBS.

People, equipment, material, supplies, locations,

or other.

Amount needed.

Include special grade, competency, certification,

licensure, or other relevant information as needed.

Assumptions:

Activity Resource Requirements

: 2012/10/19التاريخ : خاص : مستشفى بناء مشروع المشروع اسم

.المالحظات الكمية المطلوب المورد .نوع من الرقم

الهيكل

التنظيمي

للعمل

.

كهرباء فنيين

خبرة لديهم

في بالعمل

المستشفيات

12 l بشري مورد 1-2-2

:افتراضاتووجود العمل النجاز المطلوبة العمالة توفير يفترض

الموجودة العمالة في المهارة

Resource breakdown structure

Project title : Date prepared: 1.People

1.Quantity of Role 11.Quantity of Level 12.Quantity of Level 23.Quantity of Level 3

2.Quantity of Role 22.Equipment

1.Quantity of Type 12.Quantity of Type 2

3.Materials1.Quantity of Material 1

1.Quantity of Grade 12.Quantity of Grade 2

مستشفى : بناء المشروع :اسم2012/10/19التاريخ :

المشروع -1 في االفراد1- مهندس( 15عدد )

فني( 30عدد ) -2عامل( 70عدد ) -3- الماكينات -2

- حفار( 2عدد ) -1خرسانة( 3عدد ) -2 خالط

- الخاماتتسليح ) ( حديد طن عدد

اسمنت ) ( طن عدد

• Estimate Activity Durations• Process of approximating the number of work periods to complete individual activities  with estimated resources.

Inputs

1. Activity list2. Activity attributes3. Activity resource requirements

4. Resource Calendars5. Project scope statement6. Enterprise environmental factors

7. Organizational process assets

Tools & Techniques

1. Expert judgment2. Analogous estimating3. Parametric estimating4. Three-point estimates5. Reserve analysis

Outputs

1. Activity duration estimates

2. Project document updates

Reserve AnalysisDuration estimates may include

contingency reserves, into the

overall project schedule to

account for schedule uncertainty.

The contingency reserve may be a

percentage of the estimated

activity duration, a fixed number

of work periods

Activity Duration Estimates•Activity duration estimates are quantitative assessments of the

likely number of work periods that will be required to complete

an activity•2 weeks ± 2 days to indicate that the activity will take at least eight days and no more than twelve (assuming a five-day workweek).

• 15% probability of exceeding three weeks to indicate a high

probability—85% percent—that the activity will take three

weeks or less.

ACTIVITY DURATION ESTIMATES

WBS ID Activity Effort HoursDuration Estimate

From WBS Activity name from activity list 400 10 weeks

ACTIVITY DURATION ESTIMATES

المدة الزمنية النهاء العمل العمل ساعات عدد

اسم النشاط WBS رقم

3 أسابيع ساعة 120

تمديد مواسير الكهرباء 1-2-2

االسبوع في ايام خمسة العملالعمل اليوم 8مدة في ساعات

1-Analogues estimating is a tool technique used in both Time and Cost management process. What is the best description of how analog

A. by-buttom-up estimating techniques.

B. obtaining management option’s of the estimate

of each task.

C. by-top-down estimating techniques.

D. based on experts estimates.

2-Which of the following estimates type is most

accurate

• A- analogous estimates

• B- parametric estimates

• C- bottom up estimates

• D- 3 Point estimates

3- Analogues estimating is most accurate when:

A. previous projects are similar in fact not just

appearance.

B. there is a relationship between the Time being

estimated and known parameter.

C. the historical information used to develop the

model is accurate.D. work items are very small

4-How is three point estimating related to risk?

A-it tells you how much assumptions testing is required

B- it indicates whether the risk estimate is acceptable

C- it indicates the estimate degree of uncertainty

D- it indicates the risk variance

5- activity (A) the optimistic estimate of activity (A) is 5 days , most likely estimate 6 Days and pessimistic estimate is 13 what is the Expected time?

A-5

B-7

C-6

D-8

Thank you