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Time Management (WBS/Gannt/Pert)

Time Management (WBS/Gannt/Pert). Complex and numerous activities. Unique – a one-time set of events Finite – with a begin and end date. Limited resources and budget. Many people involved, usually across several functional areas in the organizations. Sequenced activities. Goal-oriented.

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Time Management (WBS/Gannt/Pert)

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  1. Time Management (WBS/Gannt/Pert)

  2. Complex and numerous activities. Unique – a one-time set of events Finite – with a begin and end date. Limited resources and budget Many people involved, usually across several functional areas in the organizations. Sequenced activities. Goal-oriented. End product or service must result. What is a Project?

  3. Project ManagementWhat is a Project Management? • PLANNING • INVOLVES THE ESTABLISHMENT OF CLEAR AND PRECISE OBJECTIVES IN ORDER TO REACH A FINAL, STATED GOAL • ORGANIZING • ASSEMBLY OF NECESSARY RESOURCES FOR CARRYING OUT THE WORK DEFINED IN THE PLAN • CONTROLLING • MONITOR AND MAINTAIN AS THE PROJECT PROGRESSES • CHANGE • INSTITUTING MECHANISMS NEEDED FOR SITUATIONS THAT REQUIRE CHANGE

  4. Project ManagementThe 5-Phase Method The 5-Phase Method contains specific steps that expand the general process into a detailed set of procedures. • 1. Define (5 Action Steps) • 2 Plan (5 Action Steps) • 3. Organize (5 Action Steps) • 4. Control (5 Action Steps) • 5. Close (5 Action Steps) 1 & 2 = Planning; 3, 4 & 5 = Implementation

  5. Project ManagementCauses of Project Failure • The Project is a solution in search of a problem. • Only the project team is interested in the end result. • No one is in charge. • The project plan lacks structure. • The project plan lacks detail. • The project is under budgeted. • Insufficient resources are allocated. • The project is not tracked against its plan. • The project team is not communicating. • The project strays from its original goals.

  6. Project ManagementProblem Identification • What is the problem/opportunity? • What is to be done? • Who is responsible for the project? • When must the project be completed?

  7. Project ManagementProject Goals - Identification • Prepare and launch the new shuttle line Atlantis from Earth to the Moon Colony by March 5, 2025. • Connect Italy with Sicily via the new G.Garibaldi world's longest single-span suspension bridge and have it open for traffic no later then July 2008. • Design and complete testing by April, 2005, of MS Project 2005, Project Management software. • Obtain an “MSc.” Degree in the EESI program from the Royal Institute of Technology by spring next year.

  8. Project ManagementObjectives – MilestonesThe S.M.A.R.T. method Specific: Be specific in targeting an objective Measurable: Establish a measurable indicator(s) of progress. Aassignable: Make the objective capable of being assigned to someone for completion. Realistic: State what can be realistically achieved within budgeted time and resources. Time-related: State when the objective can be achieved, that is, the duration.

  9. Project ManagementResources, Assumptions and Risks • Determine preliminary resources: 1. The resources were determined without project manager input. 2. The project manager determined the needed resources based on the plan. • Identify Assumptions and risks: 1. What resources are required to realistically complete this objective? What risks are associated with obtaining any of these resources in a timely manner? 2. What problems and delays are likely to occur in completing this objective? 3. What effect(s) will delays have on the budget and overall project schedule and plan? 4. What are the probable time, money, and personell cost overruns to complete this project? 5. What assumptions can be made to realistically correctfor delays in completing this objective within given resources and constraints?

  10. Project ManagementWBS – Work Breakdown Structure (1) • WBS is a simple decomposition process, i.e. a hierarchical representation of the project. • WBS identifies the activities that must be done tobegin and complete a project. • WBS involves the envisioning of the project as a hierarchy of a goal, objectives, activities, subactivities and work packages. • Milestones are events that signify the accomplishment or completion of major deliverables during a project.

  11. Project ManagementSuccessful Work Breakdown Structure (2) Each activity in the WBS will be: • Single-purposed; • Of a specific time duration; • Manageable; • Its time and cost easily derived; • Deliverables clearly understood; • Responisibilities for its completion clearly assigned; • The final defined activities will be known as entities;

  12. Project ManagementSteps – Work Breakdown Structure (3) • Step 1: Divide the project into its major objectives such that the project is fully defined by the objectives. • Step 2: Partition each objective into the activities that must be done in order to accomplish the objective. • Step 3: For each activity having one or more missing characteristics divide that activity into the subactivities comprising it. • Step 4: Repeat step 3 until all subactivities have the characteristics desired. • Step 5: The lowest-level subactivities in the hierarchy will be the basis of the work packages that must be done in order to complete the project.

  13. Project ManagementGantt Charts (1) • History • developed by Henry Gantt (1861-1919) • First used in Frankford ammunition shops in 1914 (World War I – Naval Ships) • Milestone markers, time outlines • Took 80 years to add task dependecies • popular since inception and is widely used today • precusor of CPM/PERT

  14. Project ManagementGantt Charts (2) • Project management tool • Horizontal line or bar chart • Time ordered listing of planned events • Visual representation of an organizations schedule for milestones • Graph with bar representing time for each activity • Ideal for starting project work description • schedules and plans activities

  15. Project ManagementGantt Charts (3) • Helps identify • start of activities • end of activities • slack time • amount of time an activity can be delayed without delaying the project • precedence relationships between activities

  16. Project ManagementPERT Charts (1) What is a PERT Chart? • Program Evaluation and Review Technique • Project management tool • Complex network diagrams • Used to schedule, coordinate and organize tasks within a project History of PERT Charts • United States Navy (Polaris Program) 1958 • RAND Corporation – Missile Development • Post World War II (1950’s) • Critical Path Method/Analysis (CPM) – Developed by Du Pont 1957 • Gives managers greater control of larger projects

  17. Project ManagementHow Charts Are Made • Gantt Charts • Time across the top • Tasks listed down the sides • Lines connecting dependent tasks • PERT Charts • Grouped by most critical path • Dependencies are clearly identified • Task times are included in boxes / circles

  18. Project ManagementSteps – Critical Path Method (CPM) • The Critical Path for a project is that sequence of dependent tasks that have the largest sum of most likely durations. The critical path determines the earliest possible completion date of the project. • Tasks that are on the critical path cannot be delayed without delaying the entire project schedule. • The slack time available for any noncritical task is the amount of delay that can be tolerated between the starting time and completion time of a task without causing a delay in the completion date of the entire project. • For each path, sum the durations of all tasks in the path.The path with the longest total duration is the Critical Path.The critical path for a project is that sequence of dependent tasks that have the largest sum of most likely durations. The critical path determines the earliest completion date of the project.The slack time available for any noncritical task is the amount of delay that can be tolerated between the starting time and completion time of a task without causing a delay in the completion date of the entire project.

  19. TASK D Duration Tue 2/20/01 7 days Tue 2/20/01 0 days TASK A TASK B TASK C TASK E TASK I Mon 2/5/01 3 days Wed 2/7/01 2 days Fri 2/9/01 2 days Mon 2/19/01 6 days Tue 2/27/01 5 days Mon 2/5/01 0 days Wed 2/7/01 0 days Fri 2/9/01 0 days Tue 2/20/01 1 day Tue 2/27/01 0 days TASK F TASK G Wed 2/14/01 3 days Fri 2/16/01 2 days The critical path is highlighted in red Fri 2/16/01 2 days Tue 2/20/01 2 days Slack Time TASK H Thu 2/15/01 1 day Tue 2/20/01 3 days Project ManagementCritical Path Method (CPM)

  20. Estimating Activity Time: Optimistic completion time Pessimistic completion time Most likely completion time So we can use this formula to calculate the E – Expected completion time of activity: Average activity completion time =E = (O+4M+P)/6 Formula gives the weighted average Estimating Activity Cost: Labor Materials Other direct (travel, telephone, contracted services, etc.) Indirect (overhead) CPM = Critical Path Method (sequencing and identifying critical project activities) 5-Phase Project ManagementTime, Cost and Project Activities

  21. Figure 3-16Graphical diagrams that depict project plans (a) A Gantt Chart (b) A PERT chart 3.21

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