1.040/1.401 project management spring 2007 lecture 7 dr. sanghyun lee [email protected] department of...
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1.040/1.4011.040/1.401
Project ManagementProject ManagementSpring 2007Spring 2007
Lecture 7Lecture 7
Dr. SangHyun [email protected]@mit.edu
Department of Civil and Environmental Department of Civil and Environmental EngineeringEngineering
Massachusetts Institute of Technology Massachusetts Institute of Technology
Planning BasicsPlanning Basics
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Project Management Project Management PhasePhase
FEASIBILITY
CLOSEOUTDEVELOPMENT OPERATIONS
Fin.&Eval.Risk
Estimating
PlanningPlanning
DESIGNDESIGNPLANNING PLANNING
Organization
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OutlineOutline
Planning – Hierarchical Project Planning – Hierarchical Project StructuresStructures Work Breakdown StructureWork Breakdown Structure
Organization Breakdown StructureOrganization Breakdown Structure
Cost Breakdown StructureCost Breakdown Structure
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Planning ComponentsPlanning Components
What: Work Breakdown StructureWhat: Work Breakdown Structure How: Plans and SpecificationsHow: Plans and Specifications Who: Organization Breakdown StructureWho: Organization Breakdown Structure How much: Cost Breakdown Structure (via How much: Cost Breakdown Structure (via
estimate)estimate) When: ScheduleWhen: Schedule
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OutlineOutline
Planning – Hierarchical Project Planning – Hierarchical Project StructuresStructures Work Breakdown StructureWork Breakdown Structure
Organization Breakdown StructureOrganization Breakdown Structure
Cost Breakdown StructureCost Breakdown Structure
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Work Breakdown Work Breakdown StructureStructure
A WBS is a deliverable-oriented grouping of project A WBS is a deliverable-oriented grouping of project components that organizes and defines the total components that organizes and defines the total scope of the projectscope of the project
Work not in the WBS is outside the scope of the projectWork not in the WBS is outside the scope of the project
WBS is usually an operative tool used by contractorsWBS is usually an operative tool used by contractors
First step towards constructing a scheduleFirst step towards constructing a schedule
Central role in project monitoring and controlCentral role in project monitoring and control
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WBS: ExampleWBS: Example
Source: Shtub et al., 1994
different summary level
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Work PackageWork Package
Lowest levelLowest level
Distinguish from OthersDistinguish from Others
Single Responsible OrganizationSingle Responsible Organization
Assigned Start and FinishAssigned Start and Finish
Assigned BudgetAssigned Budget
Limited DurationLimited Duration
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Types of WBSTypes of WBS
Project WBSProject WBS
Operative tool for monitoring and control contractor workOperative tool for monitoring and control contractor work
Contractual WBSContractual WBS
Defines the level of reporting that the seller will provide Defines the level of reporting that the seller will provide the buyerthe buyer
May include less detail than Project WBSMay include less detail than Project WBS
Agreed between owner and contractorAgreed between owner and contractor
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level 0
level 1
level 2
level 3
level 4
level 5
Functional ApproachFunctional Approach
GAS-STEAM COMBINED POWER
PLANT
MAIN FUNCTIONS OF PLANT
UNITS
GAS INTERFACESSTEAM
TURBINE COMPRESSION STATIONGENERATOR
COMPRESSORS
ENCLOSUREGAS TREATMENT
SUB-UNITS
WORK PACKAGES
ITEMS
COMPRESSOR 1
FOUNDATIONS
COMPRESSOR 2
DESIGN INSTALLATION
PROCUREMENT
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Physical Space ApproachPhysical Space Approach
ProjectProject Main buildingMain building
1st floor1st floor StructuresStructures PlumbingsPlumbings ElectricalElectrical HVACHVAC
2nd floor2nd floor Service buildingService building
StructuresStructures PlumbingsPlumbings ElectricalElectrical HVACHVAC
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Procedure ApproachProcedure Approach ProjectProject
FeasibilityFeasibility DesignDesign
BasicBasic DetailDetail Bid documentsBid documents Shop drawingsShop drawings
BidBid ConstructionConstruction
Foundations subcontractFoundations subcontract Main buildingMain building
PilesPiles Concrete foundationsConcrete foundations
Service buildingService building PilesPiles Concrete foundationsConcrete foundations
Steel erectionSteel erection FinishingsFinishings
CommissioningCommissioning
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WBS: CSI Master Format - WBS: CSI Master Format - Example Example
Source: Schaufelberger et al., 2002
1 Job Site General conditions 9 Finishes:2 Site work: Drywall
Earthwork & Utilities Painting Paving Acoustical Ceilings Walks & Miscellaneous Sitework Floor Covering: Carpet
3 Concrete: Floor Covering: Ceramic, Vinyl, Base Purchase Reinforcement Steel 10 Specialties Foundations 11, 12, 13 Walls & Slabs
4 Masonry 14 Conveying Systems (Elevator)5 Structural and Miscellaneous Metals 15 Mechnical Systems:6 Wood & Plastic Plumbing
Rough Carpentry Fire Protection Finish Carpentry / Wood Floors HVAC
7 Thermal & Moisture Protection Controls Insulation 16 Electrical Systems Roof & Accessories Gutters & Downspouts
8 Doors, Windows, Glass Doors Windows & Storefront Door Hardware
Equipment, Furnishings, & Special Construction
NORTHWEST CONSTRUCTION COMPANY1242 First Avenue, Cascade, Washington 98202
(206) 239-1422
CSI Division
DescriptionCSI
DivisionDescription
Work Breakdown StructureHuna Office Building
7/15/2000
Sample
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OutlineOutline
Planning – Hierarchical Project Planning – Hierarchical Project StructuresStructures Work Breakdown StructureWork Breakdown Structure
Organization Breakdown StructureOrganization Breakdown Structure
Cost Breakdown StructureCost Breakdown Structure
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Organization Breakdown Organization Breakdown StructureStructure
Decomposition of necessary resources to perform Decomposition of necessary resources to perform jobjob
Identification & organization of the resources Identification & organization of the resources responsible with carrying out activities responsible with carrying out activities associated with the projectassociated with the project
Used to keep track of specific work assignments Used to keep track of specific work assignments & resource allocations& resource allocations
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Organization Breakdown Organization Breakdown StructureStructure
Project resourcesProject resources Project management teamProject management team
Project managerProject manager
Construction superintendentConstruction superintendent
Field superintendentField superintendent
Office managerOffice manager
SchedulerScheduler
Accounter/controllerAccounter/controller
Field engineerField engineer
Construction forceConstruction force
WorkerWorker
SubcontractorSubcontractor
ElectricalElectrical
PlumbingPlumbing
InsulationInsulation
TankageTankage
RoadsRoads
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OBS/WBS OBS/WBS
LinkagesLinkages
Source: Shtub et al., 1994
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OutlineOutline
Planning – Hierarchical Project Planning – Hierarchical Project StructuresStructures Work Breakdown StructureWork Breakdown Structure
Organization Breakdown StructureOrganization Breakdown Structure
Cost Breakdown StructureCost Breakdown Structure
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Cost Breakdown Cost Breakdown Structure (CBS)Structure (CBS)
Breakdown of the costs of the various Breakdown of the costs of the various components of the structure including all work components of the structure including all work done by the subcontractorsdone by the subcontractors
Serves as a basis for subsequent monthly pay Serves as a basis for subsequent monthly pay requests by the contractorrequests by the contractor
Used to continuously compare costs as they Used to continuously compare costs as they actually occur with the budgetactually occur with the budget
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Cost Breakdown Structure Cost Breakdown Structure (CBS)(CBS)
Source: Shtub et al., 1994
100 Clearing & Grubbing 245 Precast Concrete101 Demolition 260 Concrete forms102 Underpinning .01 footings103 Earth Excavation .05 grade beams104 Rock Excavation .07 slab on grade105 Backfill .08 beams115 Wood structural piles .10 slab116 Steel structural piles .11 columns117 Concrete structural piles .12 walls121 Steel sheet piling 280 Structural Steel240 Concrete poured 350 Masonry
.01 footings .01 8 in. block
.05 grade beams .02 12 in. block
.07 slab on grade .06 common brick
.08 bcarns .20 face brick
.10 slab on forms .60 glazed tile
.11 columns 400 Carpentry
.12 walls 440 Millwork
.16 stairs 500 Miscellaneous Metals
.20 expansion joints .01 metal door frames
.40 screeds .20 window sash
.50 float finish .50 toilet partitions
.51 trowel finish 560 Finish Hardware
.60 rubbing 620 Paving
.90 curing 680 Allowance685 Fencing
Project Work Accounts .100 - .699
MASTER LIST OF PROJECT COST ACCOUNTSSubaccounts of General Ledger Account 80.000
PROJECT EXPENSE
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Two Main ApproachesTwo Main Approaches
CBS = WBSCBS = WBS
CBS is the project cost control structureCBS is the project cost control structure
CBS ≠ WBSCBS ≠ WBS
CBS is the corporate multi-project cost control structureCBS is the corporate multi-project cost control structure
Usually the case of a firm that has an integrated cost control Usually the case of a firm that has an integrated cost control systemsystem
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Diverse CombinationsDiverse Combinations
WBS + OBS: Task assignmentsWBS + OBS: Task assignments
CBS + OBS: Budget monitoring of crews, etc.CBS + OBS: Budget monitoring of crews, etc.
OBS + Schedule: Time-specific crew assignmentsOBS + Schedule: Time-specific crew assignments
CBS + Schedule: Cost monitoringCBS + Schedule: Cost monitoring