Today’s Thoughts • If you shoot at nothing, you will surely hit it. A successful person is goal oriented. • A person who cannot see the ultimate will become slave to the immediate
CON 371 - Project Management and Safety Project Scheduling 17 September 2001
Why ProjectPlanning? • To think it through on paper • Method, time, resources • Identify problems and opportunities • Do not have to commit resources first • Gathering Information (planning) reduces risk
Why ProjectPlanning? • Establish a framework • Measuring • Reporting • Controlling • Main parameters of the problem • What • How and when • First and next
Scope Definition • What work is to be done? • Fixed Price - well defined with contract • Design/Build - may be more open • Services to be performed • Documents to be produced • Description, Responsibilities, Available Material, Decisions made
Safety Budget Completion Time Reliability of operations Quality Security Use of local suppliers Use of local subcontractors Maintainability Project Objectives to consider during Scheduling
New Technology Prototype Equipment Site Conditions Resources Permits Access Labor Economic conditions Startup of Complex systems Material delivery and storage Identify Unique ProblemsHow do they affect the schedule?
Project StrategyImplemented thru the Schedule • Project objectives - ultimate destination • Project Strategy - general direction and how to get there, sequencing • Planning - implementation of strategy • specific work packages, schedule • What-if scenarios
ConstructabilityImpact on the Schedule • What is the best way to construct this project? • Arrangement of laydown yards, sequence of construction, construction techniques • Start as early in the life cycle as possible
Scope Objectives Assumptions Constraints Pending Decisions Alternatives Unique Problems Execution Strategy Staffing Work elements Project plan Schedule Budget Closeout Execution Plan
Performance Assurance Plan • Project Monitoring • Schedule • Budget • Productivity • Quality • Determine baselines • Frequency of verification • Feedback
Project Logic • Start planning the sequence of work • Initial operations • site layout, temp utilities, labor, modularization • Construction • order of field work, material delivery, testing and startup, • Priorities • Support for sequence, procurement
Task Identification Sequencing Logic Diagram Staffing Analysis Activity Durations The Critical path Resource Profile Resource Leveling Scheduled Plan Bar (Gantt) Charts Scheduling the Work
Network Logic • Sequence of Activities • Predecessors, Successors, Concurrent • Depends on method of construction • Restraints (Constraints) • Space • Resource • Equipment
Project Scheduling • Activity Duration • Deterministic • Probabilistic • Estimating Durations • Scheduling Calculations • Forward Pass • Backward Pass • Critical Path • Float • Resource Leveling
Exterior siding Clear site Rough walls and floors Excavate basement Pour basement Roof Rough-in plumbing Finish Electrical Finish plumbing Interior painting Wallboard Exterior fixtures Exterior paint Finish flooring Roofing Landscaping Rough-in Electrical Precedence Example Arrange the activities according to precedence requirements.
Clear site Excavate basement Pour basement Rough walls and floors Roof Rough-in plumbing Rough-in electrical Exterior siding Roofing Wallboard Interior painting Finish Electrical Finish flooring Finish plumbing Exterior paint Exterior fixtures Landscaping Precedence Example The activities arranged for one possible solution.
Gantt or Bar Chart Easy to construct Easy to understand Milestone chart Quick view of project status Scheduling Methods
Gantt or Bar Chart Easy to construct Easy to understand Milestone chart Quick view of project status CPM Sequencing of Tasks Interdependence of tasks Monitor and control Critical path “What if” analysis Time and resource constraints Scheduling Methods
The Schedule Plan • Establish Objectives • Develop Work Breakdown Structure • Plan the Project • Assign durations • Assign resource requirements • Optimize sequencing