1. Lecture 3: Project Management Dr. Taysir Hassan Abdel Hamid

2. Important Definitions Project management is the process of planning and controlling the development of a system within a specified timeframe at a minimum cost with the right functionality. A project manager has the primary responsibility for managing the hundreds of tasks and roles that need to be carefully coordinated.

3. Four Key Steps in Managing Projects 1.Identifying project size 2.Creating and managing the workplan 3.Staffing the project 4.Coordinating project activities

4. 1. IDENTIFYING PROJECT SIZE

5. Project Manager’s Balancing Act Project Management involves making trade-offs… Project Size Project Cost Project Time Modifying one element requires adjusting the others

6. Project Estimation Definition: The process of assigning projected values for time and effort Sources of estimates –Methodology in use –Actual previous projects –Experienced developers Estimates begin as a range and become more specific as the project progresses

7. Basic Approaches to Estimate Time Required to build a System 1.Using the amount of time spent in the planning phase 2.Estimating project time schedules using a more complex approach

8. Project Time Using the Planning Phase Approach

9. Project Time Estimation Using the Function Point Approach

10. Function Point Is a measure of program size that is based on the number and complexity of inputs, outputs, queries, files, and program interfaces. In addition to measuring output, Function Point Analysis is extremely useful in: – Estimating projects, – Managing change of scope, – Measuring productivity, and – Communicating functional requirements.

11. Inputs Outputs Inquiries Internal Logical Files External Interface Files InputInquiry Output Internal Logical Files External Interface File Five key components are identified based on logical user view Application The Function Point Methodology

12. USER LIST OF MOLDS WORK CENTERS PARTS PLANT MOLDS PLANT INFORMATION CENTER USER BILL OF MATERIALS PARTS LISTING USER ORDER PARTS USER CHANGE BILL Inquiries Internal Logical Files Output Inputs Interface VENDOR SUPPLY VENDOR INFORMATION Logical View of User Requirements

13. Calculate Function Points Step 1 - Calculate Total Unadjusted Function Points (TUFP): List major elements of system Determine total number of each element Specify complexity index of each component (low, med., high) Total index multiplied by number of components (TUFP)

14. Function-Point Multipliers Function Points ProgramLowMediumHigh CharacteristicComplexityComplexityComplexity Number of inputs  3  4  6 Number of outputs  4  5  7 Inquiries  3  4  6 Logical internal files  7  10  15 External interface files  5  7  10 Sum these to get an “unadjusted function-point total” Multiply this by an “influence multiplier” (0.65 to 1.35), based on 14 factors from data communication to ease of installation. All of this gives a total function-point count. Use this with Jones’ First-Order Estimation Practice, or compare to previous projects for an estimate

15. Calculate TUPF Example System Components

16. Calculate Function Points Step 2 – Calculate Total Processing Complexity: Overall complexity > Sum of its parts 0=no effect on processing complexity 3= great effect on processing complexity

17. Calculate Function Points Adjusted Project Complexity (APC) = 0.65 + (0.01 * Project Complexity) = 0.65 + (0.01*7)=0.72 Step 3- Calculate Adjusted Processing Complexity (APC): The processing complexity of the simplest project is defined as 0.65, the normal 1.00, and the most complex one as 1.35

18. Calculate Function Points Step 4- Calculate Total Adjusted Function Points (TAFP): Total Adjusted Function Points (TAFP) = Adjusted Project Complexity * TUFP Processing Complexity (PC):__7______ (From Step 2) Adjusted Processing Complexity (PCA) =0.65 + (0.01 * __7_ ) Total Adjusted Function Points:_0.72 * _338_ = 243 (TUFP -- From Step 1)

19. Converting Function Points to Lines of Code Source: Capers Jones, Software Productivity Research Language Lines of Codes per Function Point C COBOL JAVA C++ Turbo Pascal Visual Basic PowerBuilder HTML Packages (e.g., Access, Excel) 130 110 55 50 30 15 10-40

20. Converting Function Points to Lines of Code Calculate the lines of codes: Total Lines of Codes = Function points * Lines of code per function point in the chosen language Example: If you chose C, then 243 function Points times 130 lines of code = 31,590 total lines of code

21. Function Point Estimation Step Two – Estimate Effort Required Function of size and production rate COCOMO model (Effort in= 1.4 * thousands-of-lines-of-code Person Months) Example: If LOC = 10000 Then... Effort =(1.4 * 10)= 14 Person Months

22. Function Point Estimation Step Three - Schedule Time Rule of thumb for estimation Schedule Time (months) = 3.0 * person-months (1/3 is the exponent) Example: Effort = 14 person-month Schedule time =3.0*141/3=7.2 months

23. Estimation tips Allow time for the estimate Use data from previous projects Use developer-based estimates Estimate by walk-through Estimate by categories Estimate at a low-level of detail Don’t omit common tasks Use software estimation tools (CrossTalk) Use several different techniques, and compare the results Change estimation practices as the project progresses

24. CREATING AND MANAGING THE WORK PLAN

25. A Workplan Example Work Plan InformationExample Name of taskPerform economic feasibility Start dateJan 05, 2005 Completion dateJan 19, 2005 Person assignedProject sponsor: Mary Smith Deliverable(s)Cost-benefit analysis Completion statusOpen PriorityHigh Resources neededSpreadsheet Estimated time16 hours Actual time14.5 hours

26. Identifying Tasks Methodology –Using standard list of tasks Top-down approach –Identify highest level tasks –Break them into increasingly smaller units –Organize into work breakdown structure

27. Project Workplan List of all tasks in the work breakdown structure, plus –Duration of task –Current task status –Task dependencies –Milestone (dates)

28. Tracking Project Tasks Gantt Chart –Bar chart format –Useful to monitor project status at any point in time PERT Chart –Flowchart format –Illustrate task dependencies and critical path

29. Tracking Tasks Using Gantt Chart Task Week 2 3 4 5 6 7 8 9 10 11 12 13

31. Tracking Tasks Using PERT Chart

32. Margins of Error in Cost and Time Estimates

33. Managing Scope Scope creep JAD and prototyping Formal change approval Defer additional requirements as future system enhancements

34. Timeboxing Fixed deadline Reduced functionality, if necessary Fewer “finishing touches”

35. Timeboxing Steps 1.Set delivery date –Deadline should not be impossible –Should be set by development group 2.Prioritize features by importance 3.Build the system core 4.Postpone unfinished functionality 5.Deliver the system with core functionality 6.Repeat steps 3-5 to add refinements and enhancements

36. STAFFING THE PROJECT

37. Staffing Attributes Staffing levels will change over a project’s lifetime Adding staff may add more overhead than additional labor Using teams of 8-10 reporting in a hierarchical structure can reduce complexity

38. Increasing Complexity with Larger Teams

39. Your Turn How do you know how many people to assign to a project? How do you know what special skills will be needed for completion of the project?

40. Key Definitions The staffing plan describes the kinds of people working on the project The project charter describes the project’s objectives and rules A functional lead manages a group of analysts A technical lead oversees progress of programmers and technical staff members

41. Motivation Use monetary rewards cautiously Use intrinsic rewards –Recognition –Achievement –The work itself –Responsibility –Advancement –Chance to learn new skills

42. Handling Conflict Clearly define project plans Recognize project importance to organization Project charter listing norms and groundrules Develop schedule commitments ahead of time Forecast other priorities and their possible impact on the project

43. COORDINATING PROJECT ACTIVITIES

44. CASE Tools Planning Analysis Design Implementation Upper CASELower CASE Integrated CASE (I-CASE)

45. Procedural Metadata Logic DiagramsScreen Designs CASE Repository CASE Components

46. Standards Examples –Formal rules for naming files –Forms indicating goals reached –Programming guidelines

47. Documentation Project binder Table of contents Continual updating

48. Managing Risk Risk assessment Actions to reduce risk Revised assessment

50. Classic Mistakes Overly optimistic schedule Failing to monitor schedule Failing to update schedule Adding people to a late project

51. Summary Project management is critical to successful development of new systems Project management involves planning, controlling and reporting on time, labor, and costs.

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