Project Management Session 8 - Sharifgsme.sharif.edu/~projectmanagement/PMSession8.pdfProject...
Transcript of Project Management Session 8 - Sharifgsme.sharif.edu/~projectmanagement/PMSession8.pdfProject...
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Project ManagementSession 8
Time ManagementProject NetworkTime ManagementProject Network
Burke Chapter 10 Kerzner Ch. 12PMBOK Ch. 5
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Project Management ObjectivesProject Management Objectives
Best timeLeast costBest qualityLeast risk
Best timeLeast costBest qualityLeast risk
Studying alternativesOptimum schedulesEffective use of resourcesCommunicationsRefinement of the estimating processEase of project controlEase of time or cost revisions
Studying alternativesOptimum schedulesEffective use of resourcesCommunicationsRefinement of the estimating processEase of project controlEase of time or cost revisions
Calendar completionQuality RequirementsLimited resourcesManagement approvals
Calendar completionQuality RequirementsLimited resourcesManagement approvals
LimitationsScope RequirementsCash or cash flow restrictionsLegal RequirementsManagement Requirements
Scope RequirementsCash or cash flow restrictionsLegal RequirementsManagement Requirements
SecondaryPrimary
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Planning and Control CyclePlanning and Control Cycle
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Practice Effective Time ManagementPractice Effective Time Management
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Time RobbersTime RobbersIncomplete workA job poorly done that must be done overPoor communications channelsUncontrolled telephone callsLack of adequate responsibility and commensurate authorityPoor functional performanceChanges without direct notification/ explanationCasual visitorsWaiting for peopleFailure to delegate, or unwise delegationPoor retrieval systems
Incomplete workA job poorly done that must be done overPoor communications channelsUncontrolled telephone callsLack of adequate responsibility and commensurate authorityPoor functional performanceChanges without direct notification/ explanationCasual visitorsWaiting for peopleFailure to delegate, or unwise delegationPoor retrieval systems
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Time Robbers (Continued)Time Robbers (Continued)
Lack of information in a ready-to-use formatDay-to-day administrationSpending more time than anticipated answering questionsLack of sufficient clerical supportLate appointmentsImpromptu tasksUnion grievancesHaving to explain “thinking” to superiorsToo many levels of reviewToo many people in a small areaOffice casual conversationsLack of employee discipline Lack of qualified manpower
Lack of information in a ready-to-use formatDay-to-day administrationSpending more time than anticipated answering questionsLack of sufficient clerical supportLate appointmentsImpromptu tasksUnion grievancesHaving to explain “thinking” to superiorsToo many levels of reviewToo many people in a small areaOffice casual conversationsLack of employee discipline Lack of qualified manpower
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Time Robbers (Continued)Time Robbers (Continued)
Misplaced informationSorting mailRecord-keepingShifting prioritiesIndecision or delaying decisionsProcrastinationProofreading correspondenceSetting up appointmentsToo many meetingsMonitoring delegated workUnclear roles/job descriptionsUnnecessary crisis intervention
Misplaced informationSorting mailRecord-keepingShifting prioritiesIndecision or delaying decisionsProcrastinationProofreading correspondenceSetting up appointmentsToo many meetingsMonitoring delegated workUnclear roles/job descriptionsUnnecessary crisis intervention
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Time Robbers (Continued)Time Robbers (Continued)Overcommitted outside activitiesExecutive meddlingBudget adherence requirementsPoorly educated customersNeed to get involved in details to get job doneNot enough proven or trustworthy managersVague goals and objectivesLack of job descriptionToo many people involved in minor decision makingLack of technical knowledgeDisorganization of superiorsLack of authorization to make judgment decisionsPoor functional status reporting
Overcommitted outside activitiesExecutive meddlingBudget adherence requirementsPoorly educated customersNeed to get involved in details to get job doneNot enough proven or trustworthy managersVague goals and objectivesLack of job descriptionToo many people involved in minor decision makingLack of technical knowledgeDisorganization of superiorsLack of authorization to make judgment decisionsPoor functional status reporting
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Time Robbers (Continued)Time Robbers (Continued)
Inability to use one’s full potentialOvereducated for daily tasksWork overloadUnreasonable time constraintsLack of commitment from higher authoritiesNot being responsible for the full scopeIndecision on the part of higher managementToo much travelLack of adequate project management toolsPoor functional communications/writing skillsDepartmental “buck passing”Inability to relate to peers in a personal way
Inability to use one’s full potentialOvereducated for daily tasksWork overloadUnreasonable time constraintsLack of commitment from higher authoritiesNot being responsible for the full scopeIndecision on the part of higher managementToo much travelLack of adequate project management toolsPoor functional communications/writing skillsDepartmental “buck passing”Inability to relate to peers in a personal way
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Time Robbers (Continued)Time Robbers (Continued)
Rush into decisions/beat the deadlinesLack of reward (“a pat on the back can do wonders”)Expecting too much from one’s people and oneselfMultiple time constraints Non-supportive familyCompany political power strugglesGoing from crisis to crisisConflicting directivesLine management acting as a “father” figureFire drillsLack of privacyProject manager not involved in decisions Bureaucratic roadblocks (“ego”)
Rush into decisions/beat the deadlinesLack of reward (“a pat on the back can do wonders”)Expecting too much from one’s people and oneselfMultiple time constraints Non-supportive familyCompany political power strugglesGoing from crisis to crisisConflicting directivesLine management acting as a “father” figureFire drillsLack of privacyProject manager not involved in decisions Bureaucratic roadblocks (“ego”)
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Time Robbers (Continued)Time Robbers (Continued)
Empire-building line managersNo communication between sales and engineeringToo much work for one person to handle effectivelyExcessive paperworkLack of clerical/administrative supportWorkload growing faster than capacityReeducating project managersPersonnel not willing to take risksDemand for short-term resultsLack of long-range planningBeing over-directedChanging company systems, which requires relearningOverreacting management
Empire-building line managersNo communication between sales and engineeringToo much work for one person to handle effectivelyExcessive paperworkLack of clerical/administrative supportWorkload growing faster than capacityReeducating project managersPersonnel not willing to take risksDemand for short-term resultsLack of long-range planningBeing over-directedChanging company systems, which requires relearningOverreacting management
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Time Robbers (Continued)Time Robbers (Continued)
Poor lead time on projectsDisregard for company or personal thingsDocumentation (reports/red tape)Large number of projectsInadequate or inappropriate requirementsDesire for perfectionLack of dedication by technical expertsPoor salary compared to contemporariesLack of project organizationConstant pressureConstant interruptionsProblems coming in wavesSevere home constraintsProject monetary problemsShifting of functional personnel
Poor lead time on projectsDisregard for company or personal thingsDocumentation (reports/red tape)Large number of projectsInadequate or inappropriate requirementsDesire for perfectionLack of dedication by technical expertsPoor salary compared to contemporariesLack of project organizationConstant pressureConstant interruptionsProblems coming in wavesSevere home constraintsProject monetary problemsShifting of functional personnel
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Time Management ActionsTime Management ActionsDelegate.Follow the schedule.Decide fast.Decide who should attend.Learn to say no.Start now.Do the tough part first.Travel light.Work at travel stopsAvoid useless memos.Refuse to do the unimportant.Look ahead
Delegate.Follow the schedule.Decide fast.Decide who should attend.Learn to say no.Start now.Do the tough part first.Travel light.Work at travel stopsAvoid useless memos.Refuse to do the unimportant.Look ahead
Ask: Is this trip necessary?Know your energy cycle.Control telephone time.Send out the meeting agenda.Shut off in-house visits.Overcome procrastination.Manage by exception.
Ask: Is this trip necessary?Know your energy cycle.Control telephone time.Send out the meeting agenda.Shut off in-house visits.Overcome procrastination.Manage by exception.
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Rules for time managementRules for time management– Conduct a time analysis (time log).– Plan solid blocks for important things.– Classify your activities.– Establish priorities.– Establish opportunity cost on activities.– Train your system (boss, subordinate, peers).– Practice delegation.– Practice calculated neglect.– Practice management by exception.– Focus on opportunities - not on problems.
– Conduct a time analysis (time log).– Plan solid blocks for important things.– Classify your activities.– Establish priorities.– Establish opportunity cost on activities.– Train your system (boss, subordinate, peers).– Practice delegation.– Practice calculated neglect.– Practice management by exception.– Focus on opportunities - not on problems.
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Preparing the To-Do ChecklistPreparing the To-Do Checklist
Questions– What am I doing that I don’t
have to be doing at all?– What am I doing that can be
done better by someone else?– What am I doing that could be
done as well by someone else?– Am I establishing the right
priorities for my activities?
Questions– What am I doing that I don’t
have to be doing at all?– What am I doing that can be
done better by someone else?– What am I doing that could be
done as well by someone else?– Am I establishing the right
priorities for my activities?
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Where do Schedules Comefrom? Defining ActivitiesWhere do Schedules Comefrom? Defining ActivitiesProject charter (planned project start and end date)
Detailed scope statement
WBS
Budget information
Triple constraint (balancing scope, time, and cost goals), reflecting the basic order of first three processes in time management : activity definition, activity sequencing, and activity duration estimating.
Project charter (planned project start and end date)
Detailed scope statement
WBS
Budget information
Triple constraint (balancing scope, time, and cost goals), reflecting the basic order of first three processes in time management : activity definition, activity sequencing, and activity duration estimating.
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Creating a WBSCreating a WBS1. Determine a tree structure or outline format in creating WBS.2. Determine how many levels of decomposition are appropriate.3. Determine how the levels of the WBS will be organized.4. Label level one the project name.5. At level two, decompose the project into a set of deliverables.6. For each subsequent level, decompose into smaller components.7. Create the lowest level of decomposition. This level, called the
work package, should be small enough to easily assign to one person to complete. You also will be able to easily create time and cost estimates for this level.
8. Create a unique numerical identifier for each components.The numbering scheme starts at the left of the WBS and works the same as a numeric outline (1.0, 1.1, 1.1.2, etc.).
1. Determine a tree structure or outline format in creating WBS.2. Determine how many levels of decomposition are appropriate.3. Determine how the levels of the WBS will be organized.4. Label level one the project name.5. At level two, decompose the project into a set of deliverables.6. For each subsequent level, decompose into smaller components.7. Create the lowest level of decomposition. This level, called the
work package, should be small enough to easily assign to one person to complete. You also will be able to easily create time and cost estimates for this level.
8. Create a unique numerical identifier for each components.The numbering scheme starts at the left of the WBS and works the same as a numeric outline (1.0, 1.1, 1.1.2, etc.).
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Activity SequencingActivity SequencingInvolves reviewing the activities in the detailed WBS, detailed product descriptions, assumptions, and constraints to determine the relationships between activities. It also involves evaluating the reasons for dependencies and the different types of dependencies. A dependency or relationship shows the sequencing of project activities or tasks. For example,– Should an activity be finished before another one starts ?– Can several activities be done in parallel ?– Can some overlap ?
Basic reasons for creating dependencies among activities.– Mandatory dependencies– Discretionary dependencies– External dependencies
Involves reviewing the activities in the detailed WBS, detailed product descriptions, assumptions, and constraints to determine the relationships between activities. It also involves evaluating the reasons for dependencies and the different types of dependencies. A dependency or relationship shows the sequencing of project activities or tasks. For example,– Should an activity be finished before another one starts ?– Can several activities be done in parallel ?– Can some overlap ?
Basic reasons for creating dependencies among activities.– Mandatory dependencies– Discretionary dependencies– External dependencies
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Project Network DiagramsProject Network Diagrams
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Network Scheduling TechniquesNetwork Scheduling Techniques
Gantt or bar chartsMilestone chartsLine of balanceNetworks– Program Evaluation and Review Technique (PERT)– Arrow Diagram Method (ADM) [Sometimes called the
Critical Path Method (CPM)]– Graphical Evaluation and Review Technique (GERT)– Precedence Diagram Method (PDM)
Gantt or bar chartsMilestone chartsLine of balanceNetworks– Program Evaluation and Review Technique (PERT)– Arrow Diagram Method (ADM) [Sometimes called the
Critical Path Method (CPM)]– Graphical Evaluation and Review Technique (GERT)– Precedence Diagram Method (PDM)
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Schedule Development -Tools and TechniquesSchedule Development -Tools and Techniques
A Gantt chart is a common tool for displaying project schedule information.PERT analysis is one means for evaluating schedule risk on projects.Critical path analysis / method is a very important tool for developing and controlling project schedules.Critical chain scheduling is a techniques that accounts for resources constraints.
A Gantt chart is a common tool for displaying project schedule information.PERT analysis is one means for evaluating schedule risk on projects.Critical path analysis / method is a very important tool for developing and controlling project schedules.Critical chain scheduling is a techniques that accounts for resources constraints.
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Project Network DiagramsProject Network DiagramsActivity-on-arrow (AOA) or the Arrow Diagramming Method (ADM) is a network diagramming technique in which activities are represented by arrows and connected at points called nodes to illustrate the sequence of activities. A node is simply the starting or ending point of an activity. Bursts occur when a single node is followed by two or more activities. A merge occurs when two or more nodes precede a single node.The precedence diagramming method (PDM) is a network diagramming technique in which boxes represent activities. It is particularly useful for visualizing certain types of time relationship.
Activity-on-arrow (AOA) or the Arrow Diagramming Method (ADM) is a network diagramming technique in which activities are represented by arrows and connected at points called nodes to illustrate the sequence of activities. A node is simply the starting or ending point of an activity. Bursts occur when a single node is followed by two or more activities. A merge occurs when two or more nodes precede a single node.The precedence diagramming method (PDM) is a network diagramming technique in which boxes represent activities. It is particularly useful for visualizing certain types of time relationship.
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Activity Duration EstimatingActivity Duration EstimatingDuration includes the actual amount of time worked on an activity plus elapsed time. For example, even though it might take one work-week, or five workdays, to perform a certain activity, the duration estimate might be two weeks to allow for someone working only halftime on the activity or someone needing to waita week to obtain outside information.Inputs to duration estimating: detailed activity list and sequencing. Review constraints and assumptions related to the estimates. Historical information is also useful. One important considerations is the availability of resources, especially human resources.– What specific skills do people need to do the work ?– What are the skill levels of the people assigned to the project ?– How many people are expected to be available to work on the
project at any one time ?
Duration includes the actual amount of time worked on an activity plus elapsed time. For example, even though it might take one work-week, or five workdays, to perform a certain activity, the duration estimate might be two weeks to allow for someone working only halftime on the activity or someone needing to waita week to obtain outside information.Inputs to duration estimating: detailed activity list and sequencing. Review constraints and assumptions related to the estimates. Historical information is also useful. One important considerations is the availability of resources, especially human resources.– What specific skills do people need to do the work ?– What are the skill levels of the people assigned to the project ?– How many people are expected to be available to work on the
project at any one time ?
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Steps to Creating ActivityDuration EstimatesSteps to Creating ActivityDuration Estimates
1. Determine if the WBS needs to be decomposed into smaller activities, called an activity list. These activities should be small enough to be assigned to one person.
2. Understand the resource requirements for each activity.3. Determine whether it would be best to use expert
judgment, analogous estimating, or quantitatively based durations for each activity.
4. Determine the proper duration estimate for each activity.5. Analyze each activity for schedule risk.6. Determine what type of reserve time you might apply: a
work unit or percentage.7. Add reserve time to each activity where appropriate.
1. Determine if the WBS needs to be decomposed into smaller activities, called an activity list. These activities should be small enough to be assigned to one person.
2. Understand the resource requirements for each activity.3. Determine whether it would be best to use expert
judgment, analogous estimating, or quantitatively based durations for each activity.
4. Determine the proper duration estimate for each activity.5. Analyze each activity for schedule risk.6. Determine what type of reserve time you might apply: a
work unit or percentage.7. Add reserve time to each activity where appropriate.
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Bar (Gantt) ChartsBar (Gantt) Charts
TASKS 1 2 3 4 5
4
MONTHS AFTER GO-AHEAD
3
2
1
5
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Project Network DiagramsGantt ChartsProject Network DiagramsGantt Charts
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Schedule Development -Gantt ChartsSchedule Development -Gantt Charts
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Schedule Development -Gantt ChartsSchedule Development -Gantt Charts
The black diamond symbol represents a milestone – a significant event on a project with zero duration. Milestones are a particularly important part of schedules, and some people use the SMART criteria to help define them.The SMART criteria are guidelines suggesting that milestones should be specific, measurable, assignable, realistic, and time-framed.You can use Gantt chart to evaluate progress on a project by showing actual schedule information. Tracking Gantt chart compares planned and actual project schedule information. The planned schedule dates for activities are called the baseline dates.A white diamond on the tracking Gantt chart represent a slipped milestone. A slipped milestone means the milestone was actually reached later than originally planned.
The black diamond symbol represents a milestone – a significant event on a project with zero duration. Milestones are a particularly important part of schedules, and some people use the SMART criteria to help define them.The SMART criteria are guidelines suggesting that milestones should be specific, measurable, assignable, realistic, and time-framed.You can use Gantt chart to evaluate progress on a project by showing actual schedule information. Tracking Gantt chart compares planned and actual project schedule information. The planned schedule dates for activities are called the baseline dates.A white diamond on the tracking Gantt chart represent a slipped milestone. A slipped milestone means the milestone was actually reached later than originally planned.
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Schedule Development Gantt Charts
Schedule Development Gantt Charts
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Schedule Development -Gantt ChartsSchedule Development -Gantt Charts
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Milestone ChartMilestone Chart
ACTIVITYTESTINGANALYSISREPORTPRESENTATION
TIME
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Standard CPM/PERT NomenclatureStandard CPM/PERT Nomenclature
6 33 WEEKS
COMPLETE TESTING COMPLETE FINAL REPORT
LEGENDLEGEND
EVENT
ACTIVITY
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DependenciesDependencies
7
26 18
31
7
18
31
26
BURST POINT SINK
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Conversion From Bar To PERTConversion From Bar To PERT
4
2
3
1
5
6 7
3
2 2221
11
4
1 2
3 4 5
6 7
TIME
BAR CHART
PERT CHART
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Simplified PERT NetworkSimplified PERT Network
1 9
3
42 8765
LEGEND: (TIME = WEEKS)EVENTACTIVITYCRITICAL PATH ACTIVITY
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Schedule Development - CPMSchedule Development - CPMCritical path method (CPM) – also called critical path analysis – is a project network analysis technique used to predict total project duration. It is an important tool that helps you combat project schedule overruns. A critical path for a project is the series of activities that determine the earliest time by which the project can be completed. It is the longest path through the network diagram and has the least amount of slack or float.Slack or float is the amount of time an activity may be delayed without delaying a succeeding activity or the project finish date. Free slack or free float is the amount of time an activity can be delayed without delaying the early start of any immediately following activities.
Critical path method (CPM) – also called critical path analysis – is a project network analysis technique used to predict total project duration. It is an important tool that helps you combat project schedule overruns. A critical path for a project is the series of activities that determine the earliest time by which the project can be completed. It is the longest path through the network diagram and has the least amount of slack or float.Slack or float is the amount of time an activity may be delayed without delaying a succeeding activity or the project finish date. Free slack or free float is the amount of time an activity can be delayed without delaying the early start of any immediately following activities.
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Schedule Development -Critical Path MethodSchedule Development -Critical Path Method
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Dummy ActivitiesDummy Activities
A
BC
D
ACTIVITYPRECEDING
ACTIVITYA -B -C B D A,B
DUMMY
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NETWORK FOR HOUSE CONSTRUCTION
1 2 3 4
67
8
15 17
185
14
13
9
10
11
12
EXC &POUR FOOTINGS
POURFOUND.
ERECTFRAME & ROOF
LAYBRICKWORK
INSTALLDRAINS
POURBASEMENTFLOOR
INSTALL COOLING & HEATING
INSTALL ROUGHELECT. & PLUMB
LAYSTORM DRAINS
FINISHROOF
FINISH GRADING
POUR WALKS &LANDSCAPE
FINISHFLOORS
FINISH ELECTR.WORK
FINISHCARPETING
PAINT
INSTALLKITCHEN EQUIP.
INSTALLFIN. PLUMB
INSTALLDRY WALL
16
INSTALL ROOFDRAINAGE
LAYFLOORING
HOW CAN YOU TELL THAT THIS IS A PERT/CPM OR PRECEDENCE NETWORK?
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Using Critical Path Analysis toMake Schedule Trade-OffsUsing Critical Path Analysis toMake Schedule Trade-Offs
The early start date for an activity is the earliest possible time an activity can start based on the project network logic. Total slack or total float is the amount of time an activity may be delayed from its early start without delaying the planned project finish date. You calculate free slack and total slack by doing a forward and backward pass through a network diagram.A forward pass determines the early start and early finish dates for each activity. The early finish date for an activity is the earliest possible time an activity can finish based on the project network logic.A backward pass through the network diagram determines the late start and late finish dates for each activity in a similar fashion. The late start date for an activity is the latest possible time an activity might begin without delaying the project finish date. The late finish date for an activity is the latest possible time an activity can be completed without delaying the project finish date.
The early start date for an activity is the earliest possible time an activity can start based on the project network logic. Total slack or total float is the amount of time an activity may be delayed from its early start without delaying the planned project finish date. You calculate free slack and total slack by doing a forward and backward pass through a network diagram.A forward pass determines the early start and early finish dates for each activity. The early finish date for an activity is the earliest possible time an activity can finish based on the project network logic.A backward pass through the network diagram determines the late start and late finish dates for each activity in a similar fashion. The late start date for an activity is the latest possible time an activity might begin without delaying the project finish date. The late finish date for an activity is the latest possible time an activity can be completed without delaying the project finish date.
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Slack IdentificationSlack Identification
ACTIVITY EARLIEST START TIME
C (8,10)2 (15,17)
EARLIEST FINISH TIME
LATEST FINISH TIME
LATEST START TIMETIME
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Types Of SlackTypes Of Slack
[ 20, 26 ] [ 30, 36 ][ 24, 30 ] [ 24, 30 ]
POSITIVE SLACK NEGATIVE SLACK
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Negative SlackNegative Slack
FORWARD PASS
BACKWARD PASS
CUSTOMER’S CUSTOMER’SSTART DATE FINISH DATE
3
2
4
1
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PROJECT NETWORK TECHNIQUES (PNT)
PRECEDENCE
NETWORKS
PERT
CPM
Probabilisticapproach
Activity-on-arrow(A-O-A)
Event-OrientedBased on three time estimates
An optimistic time
A most likely time
A pessimistic time
Deterministicapproach
Activity-on-arrow(A-O-A)
Event-Oriented
TYPICAL USES
Construction projects
Engineering projects
TYPICAL USES
R & D projects
Computer projects
1956
1960
1970
Deterministicapproach
Activity-on-node(A-O-N)
Develops an expectedtime (TE) for each activity
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Program Evaluation andReview Technique (PERT)Program Evaluation andReview Technique (PERT)
Another project time management technique is the Program Evaluation and Review Technique (PERT) – a network analysis technique used to estimate project duration where there is a high degree of uncertainty about the individual activity duration estimates. PERT applies the critical path method to a weighted average duration estimate.PERT uses probabilistic time estimates – duration estimates based on using optimistic, most likely, and pessimistic estimates of activity duration – instead of one specific or discrete duration estimate.
optimistic time + 4 x most likely time + pessimistic timePERT weighted average = ---------------------------------------------------------------------
6
Another project time management technique is the Program Evaluation and Review Technique (PERT) – a network analysis technique used to estimate project duration where there is a high degree of uncertainty about the individual activity duration estimates. PERT applies the critical path method to a weighted average duration estimate.PERT uses probabilistic time estimates – duration estimates based on using optimistic, most likely, and pessimistic estimates of activity duration – instead of one specific or discrete duration estimate.
optimistic time + 4 x most likely time + pessimistic timePERT weighted average = ---------------------------------------------------------------------
6
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Resource AllocationResource Allocation
Resource allocation (or resource limited planning) is an attempt to find the shortest possible critical path based upon the available or fixed resources. The problem with this approach is that the employees may not be qualified technically to perform work on more than one activity in a network.
Resource allocation (or resource limited planning) is an attempt to find the shortest possible critical path based upon the available or fixed resources. The problem with this approach is that the employees may not be qualified technically to perform work on more than one activity in a network.
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Resource LevelingResource Leveling
Resource leveling is an attempt to eliminate the manpower peaks and valleys by smoothing out the period-to-period resource requirements. The ideal situation is to do this without changing the end date. However, in reality, the end date moves out and additional costs are incurred.
Resource leveling is an attempt to eliminate the manpower peaks and valleys by smoothing out the period-to-period resource requirements. The ideal situation is to do this without changing the end date. However, in reality, the end date moves out and additional costs are incurred.
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Techniques for Shortening a Project ScheduleTechniques for Shortening a Project ScheduleCrashing is a technique for making cost
and schedule trade-offs to obtain the greatest amount of schedule compression for the least incremental cost.
Fast tracking involves doing activities in parallel that you would normally do in sequence.
Crashing is a technique for making cost and schedule trade-offs to obtain the greatest amount of schedule compression for the least incremental cost.
Fast tracking involves doing activities in parallel that you would normally do in sequence.
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Schedule CompressionSchedule CompressionElimination of some parts of the project Addition of more resourcesSubstitution of less time-consuming components/activitiesParallelization of activitiesShortening critical path activitiesShortening early activitiesShortening longest activitiesShortening easiest activitiesShortening activities that are least costly to speed upShortening activities for which you have more resourcesIncreasing the number of work hours per day
Elimination of some parts of the project Addition of more resourcesSubstitution of less time-consuming components/activitiesParallelization of activitiesShortening critical path activitiesShortening early activitiesShortening longest activitiesShortening easiest activitiesShortening activities that are least costly to speed upShortening activities for which you have more resourcesIncreasing the number of work hours per day
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Program Crashing CostsProgram Crashing Costs
110,000
120,000
130,000
140,000
150,000
160,000
PRO
GR
AM
CO
ST, $
10 12 14 16 18 20 22
CRASH B
CRASH E
CRASH F
CRASH ANORMAL OPERATIONS
ALL ACTIVITIES CRASHED
MINIMUM COSTTOTAL CRASH
24PROGRAM COMPLETION TIME, WEEKS
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Precedence NetworkPrecedence Network
TASKS 1 2 3 4 5
4
MONTHS AFTER GO-AHEAD
3
2
1
5
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Types Of Precedence ChartsTypes Of Precedence Charts
ACTIVITY 1 ACTIVITY 2
STARTFINISH
FINISH-TO-START
ACTIVITY 1
ACTIVITY 2
START-TO-START
START
START
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Types Of Precedence ChartsTypes Of Precedence Charts
ACTIVITY 1FINISH
FINISHFINISH-TO-FINISH
ACTIVITY 2PERCENT COMPLETE
ACTIVITY 1
ACTIVITY 220 %
50 %
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Project Network DiagramsProject Network Diagrams
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ACTIVITY INFORMATION
EARLY START01/06/97
TIME DURATION2 WORK-WEEKS
EARLY FINISH14/06/97
ACTIVITY 4
TOTALSLACK(TS)
$250,000
LATE START15/06/97
COST/PROFIT CENTER 2810
LATE FINISH28/06/97
FREE SLACK(FS)
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Controlling Changes to the Project ScheduleControlling Changes to the Project Schedule
Reality checks on schedulingThe project manager should review the draft schedule usually included in the project charter.The project manager and his or her team should prepare a more detailed schedule and get stakeholders’ approval.Another type of reality check comes from progress meetings with stakeholders. The project manager is responsible for keeping the project on track, and key stakeholders like to stay informed, often through high-level periodic reviews.
Working with people issuesSeveral leadership skills that help project managers control
schedule changes include :– � Empowerment– � Incentives– � Discipline– � Negotiation
Reality checks on schedulingThe project manager should review the draft schedule usually included in the project charter.The project manager and his or her team should prepare a more detailed schedule and get stakeholders’ approval.Another type of reality check comes from progress meetings with stakeholders. The project manager is responsible for keeping the project on track, and key stakeholders like to stay informed, often through high-level periodic reviews.
Working with people issuesSeveral leadership skills that help project managers control
schedule changes include :– � Empowerment– � Incentives– � Discipline– � Negotiation
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Planning and Control CyclePlanning and Control Cycle
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Exercise
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