Work Breakdown Structure.

Transcription

1 Work Breakdown Structure

2 Project Scope Management Includes the processes required to ensure that the project includes all the work required, and only the work required, to complete the project successfully Collect Requirements Define Scope Create Work Breakdown Structure (WBS) Verify Scope Control Scope

3 Planning Processes Work Breakdown Structure with RAM Estimate Duration and Resources Network Analysis Schedule Development Project Baseline

4 WBS Definition PMBOK Guide Definition A deliverable-oriented grouping of project elements that organizes and defines the total work scope of the project. Each descending level represents an increasingly detailed definition of the project work.

5 Work Breakdown Structure The tool for breaking down a project into its component parts (work package). It is the foundation of project planning and one of the most important techniques used in project management.

6 Work Breakdown Structure Project X

7 WBS in Graphical Form Software Development Customer Requirements Code Programs Testing Training Acceptance Testing Approve Requirements Prepare Func.Specs. Prepare Test plan Prepare Test data Conduct Testing

8 WBS in Graphical Form 1.0 Home Landscape project 1.1 Design home landscape 1.2 Put in lawn 1.3 Build fence Acquire lawn material Install sprinkler system Plant grass Plant shrubs Acquire fence material Construct fence Dig trenches Install pipe & hardware Cover sprinkler system Remove debris Prepare soil Plant lawn seed Mark fence line & post Install post Install fencing & gates Paint fence

9 WBS in Outline Form 1. Software Development 1.1Customer Requirements Approve Requirements Prepare Functional Specifications 1.2 Code Programs 1.3 Testing Prepare Test Plan Prepare Test Data Conduct Testing 1.4 Training 1.5Acceptance Testing

10 WBS in Outline Form 1.0 Home Landscaping Project 1.1 Design home landscape 1.2 Put in lawn Acquire lawn material Install sprinkler system Dig trenches Install pipe and hardware Cover sprinkler system Plant grass Remove debris Prepare soil Plant lawn seed Plant shrubs 1.3 Build fence Acquire fence material Construct fence Mark fence line and post Install post Install fencing and gates Paint fence

11 Advantages of WBS Provides a detailed illustration of the project scope Create accurate cost and schedule estimates Monitor progress easily Basis for building project teams

12 WBS Decomposition

13 WBS Organized by Product

14 WBS Organized by Phase

15 Criteria for a Successful WBS WBS must be broken down starting at the top Work packages must add up to the summary task (100% Rule) Each summary task and work package must be named an activity that produces a product (use SMART Technique)

16 Criteria for a Successful WBS S M A R T specific measurable agreed upon realistic time-bound

17 Estimating

18 Planning Processes Work Breakdown Structure with RAM Estimate Duration and Resources Network Analysis Schedule Development Project Baseline

19 Factors Affecting Resource Estimating Work Methodology Statutory Requirements Specifications Project Duration Resource Availability

20 Estimating Work Process Lessons Learned for Continuous Improvement Establish Standards Revise Estimate (Based on External Review) Yes Alignment Scope of Work Prepare Estimate Document Estimate Review Estimate Adjust Estimate? Reality Check (Based on Internal Review) No Database Project Execution Estimate Feed-back for Continuous Improvement Project Completion

21 Estimating Techniques Expert Judgment Analogous Estimating Definitive Estimating Parametric Modeling

22 Analogous Estimating 500 m 2 :US$ 650, m 2 :US$ 260,000

23 Analogous Estimating SOFTWARE DEVELOPMENT Testing 45% Initiation 10% 10% 20% Coding Requirements 15% Design

24 Analogous Estimating Home Landscape Project 100% 1.0 Design home Landscape 2.0 Put in Lawn 3.0 Build fence 4% 47% 49% 2.1 Acquire lawn Material 2.2 Install sprinkler System 2.3 Plant grass 2.4 Plant shrubs 3.1 Acquire fence Material 3.2 Construct fence 25% 9% 10% 3% 42% 7% Dig trenches 5% Install pipe & Hardware Cover sprinkler System 3% 1% Remove debris Prepare soil Plant lawn Seed 4% 5% 1% Mark fence line & post Install post Install fencing & gates Paint fence 2% 2% 2% 1%

25 Definitive Estimating Home Landscape Project 100k 1.0 Design home Landscape 2.0 Put in Lawn 3.0 Build fence 4k 47k 49k 2.1 Acquire lawn Material 25k 2.2 Install sprinkler System 2.3 Plant grass 2.4 Plant shrubs 3.1 Acquire fence Material 3.2 Construct fence 9k 10k 3k 42k 7k Dig trenches 5k Install pipe & Hardware 3k Cover sprinkler System 1k Remove debris Prepare soil Plant lawn Seed 4k 5k 1k Mark fence line & post Install post Install fencing & gates Paint fence 2k 2k 2k 1k

26 Parametric Estimating

27 Workshop Time Create your Project s WBS

28 Simple Work plan Tasks Duration Responsible Persons/ Team Remark