Managing Projects with Practical Software & Systems Measurement PSM

Transcription

1 Managing Projects with Practical Software & Systems Measurement PSM Mauricio Aguiar PSM Qualified Instructor TI Métricas Ltda. Av. Rio Branco 181/1910 Rio de Janeiro, RJ Brazil

2 Agenda Topics Project Management Problems Applying PSM Using PSM with FPA 2

3 Project Management Problems Project Development Schedule Activity Requirements Design May 8 Nov 16 May 17 Oct 16 May 17 Oct 27 Sep 24 Apr 17 Jan 3 May 17 Jan 20 Jun Plan 1 Plan 2 Plan 3 Actual Implementation Integration and Test 16 Jun 18 Sep 15 Dec 27 Dec 15 Dec 7 Mar 15 Dec 28 Feb 13 Mar 17 Jan 1 Jan 28 Oct 1 Jan 10 Mar 1 Jan 13 Apr 3

4 Project Management Problems The Gantt Chart The Gantt Chart is named after Henry Gantt ( ), who designed his chart around the years Can we do better than that? 4

5 Project Management Problems Schedule Versus Staffing Requirements Design-1 Design-2 Design-3 Implementation-1 Implementation-2 Implementation-3 Integration and Test # of Staff Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec 5

6 Project Management Problems # of Units Code and Unit Test Progress Plan Actual Oct 96 Nov 96 Dec 96 Jan 97 Feb 97 Mar 97 Apr 97 May 97 Project: TNMS Date Data as of 03/04/97 6

7 Project Management Problems The PSM Analysis Model Technology Effectiveness Process Performance Product Size and Stability Resources Information Categories Schedule and Progress Customer Satisfaction Product Quality 7

8 Project Management Problems # of FTE Staffing Level Plan Actual 0 Jan 96 Jul 96 Jan 97 Jul 97 Jan 98 Jul 98 Jan 99 Project: TNMS Date Data as of 03/04/97 8

9 Project Management Problems FPs 3000 Functional Size Plan Actual Jan 96 Jul 96 Jan 97 Jul 97 Jan 98 Jul 98 Jan 99 Project: TNMS Date Data as of 03/04/97 9

10 Project Management Problems The PSM Analysis Model Resources Information Categories Customer Satisfaction Product Quality 10

11 Applying PSM PSM - Practical Software & Systems Measurement - is a methodology for the design and implementation of a measurement program PSM is fully compatible with the ISO/IEC standard and with the Measurement and Analysis Process Area of the CMMI PSM is sponsored by the DoD and the US Army 11

12 Applying PSM Select Measures Measures should be derived from Information Needs Information Needs are based on Objectives Obstacles Risks Problems Lack of Information 12

13 Applying PSM Information Categories PSM includes a set of measures successfully used in the industry Measures are grouped into Information Categories Schedule and Progress Resources and Cost Product Size and Stability Product Quality Process Performance Technology Effectiveness Customer Satisfaction 13

14 Applying PSM The PSM Process Model Objectives and Issues Technical & Management Processes User Feedback Analysis Results Establish & Sustain Commitment Core Measurement Activities Measurement Plan Plan Measurement New Issues Perform Measurement Scope of PSM Improvement Actions Evaluate Measurement Analysis Results & Performance Measures 14

15 Applying PSM - The PSM Process Model - Details Establish and Sustain Commitment Obtain Organizational Commitment Define Responsibilities Provide Resources Review Program Plan Measurement Identify and Prioritize Information Needs Select and Specify Measures Integrate into Project Processes Perform Measurement Collect and Analyze Process Data Data Make Recommendations Evaluate Measurement Evaluate Measures Evaluate Measurement Process Update Experience Base Identify and Implement Improvements 15

16 Applying PSM Three Major Project Concerns Schedule Cost Defects? ilities? Quality 16

17 Applying PSM Using the PSM Analysis Model Architecture CMMI Level Scope Productivity Requirements Information Categories 17

18 Applying PSM A Plan for Immediate Action Architecture CMMI Level Scope Productivity Requirements Information Categories 18

19 # of Requirements Applying PSM Control Requirements Begin of Build 1 SW Design # of Requirements Build 1 Begin of Build 1 I&T Jul 96 Jan 97 Jul 97 Jan 98 Jul 98 Jan Aug

20 Applying PSM Control Functional Size FPs 3000 Functional Size Plan Actual Jan 96 Jul 96 Jan 97 Jul 97 Jan 98 Jul 98 Jan 99 Project: TNMS Date Data as of 03/04/

21 Using PSM with FPA Function Point Analysis (FPA) User (Business) View External Input Application Being Counted External Interface Files External Output External Inquiry Internal Logical File External Input External Output External Inquiry Other Applications 21

22 Using PSM with FPA Using FPA to Control Scope Initial Measured Size = 2200 FP Initial Estimated Size = 2000 FP Delivered Size =2500 FP Budget & RFP Requirements Definition Changes... Construction Price per FP Analysis Accrual Measurement Approval. Scope Management 22

23 Using PSM with FPA FPA Infrastructure Allocate budget, resources, and responsibilities Implement standards and procedures for: Collection Validation Storage Analysis Reporting Using Results Document local FP rules and interpretations Measure, monitor, and continuously improve the process 23

24 Using PSM with FPA Using PSM to Implement FPA Hire, Train, Certify Counters Monitor FPA Usage Establish and Sustain Commitment Obtain Organizational Commitment Define Responsibilities Provide Resources Review Program Assign roles Join IFPUG Institutionalize FPA. 24

25 Using PSM with FPA Using PSM to Implement FPA Types of counts, Estimation methods, Local rules, Productivity Measurement procedures, Documentation, Reports Plan Measurement Identify and Prioritize Information Needs Select and Specify Measures Integrate into Project Processes Identify size-related information needs as well as related measures 25

26 Using PSM with FPA Using PSM to Implement FPA Interpret and analyze measurement results Perform Measurement Collect and Analyze Process Data Data Make Recommendations Gather and organize documentation, Perform counts, Calculate productivities, Track size changes Comunicate results and make recommendations 26

27 Using PSM with FPA Using PSM to Implement FPA Continuously improve the process Document lessons learned Evaluate Measurement Evaluate Measures Evaluate Measurement Process Update Experience Base Identify and Implement Improvements Periodically evaluate both the measures and the process 27

28 A PSM Transition Organization 28