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ASSESS, ANALYZE AND MANAGE
STAKEHOLDERS EXPECTATIONS
BETTER

     M C Nagaraj
     Director – Customer Excellence

          in.linkedin.com/in/mcnagaraj
Hypothesis Based Testing (HBT)
A goal focused methodology to validation


  Six-stage evaluation model (S1-S6)


           S6                S1
           Assess &     Understand                                The central theme of HBT is
           ANALYZE      EXPECTATIONS                           “hypothesize potential defects that
                                                                 can cause loss of expectations
                                                                               and
  S5 Tooling          HBT
                            Understand
                                       S2                         prove that they will not exist”
      SUPPORT               CONTEXT


          Devise        Formulate                                   The focus is on the goal and
          PROOF         HYPOTHESIS
                                                                       how we shall achieve it
                                                                  rather than the various activities
          S3                  S3
                                                                   “goal-centric vs. activity-based”




                                       Copyright STAG Software Private Limited, 2009                   2
HBT and STEM


                                                                                                     “outcome”
                                                                                                 ‘deliver clean software
           S6                         S1                                  GOAL                   quickly & cost-effectively’
           Assess &         Understand
           ANALYZE          EXPECTATIONS


                         D8 D1
      Tooling       D7           D2
 S5
      SUPPORT
                         STEM       Understand
                                                 S2                                                “methodology”
                    D6           D3 CONTEXT
                                                                             HBT                 a system of ways of doing
                         D5 D4
                                                                                                   ‘goal centered scientific
                                                                                                    approach to validation’
           Devise           Formulate
           PROOF            HYPOTHESIS

           S3                         S3                                                              “method”
                                                                            STEM
                                                                                             a particular way of doing something
                                                                                                ‘defect detection technology
                                                                                                          from STAG’




                                             Copyright STAG Software Private Limited, 2009                                     3
HBT - six stages effectiveness guaranteed

 • Key focus in each stage
 • Empowered by scientific approach using eight
   disciplines (D1 to D8) of STEM
 • 32 core concepts address factors like effectiveness,
   consistency, scalability, efficiency, visibility and
   agility of test methodology
 • The outcome of each stage are well defined




  Copyright 2011. STAG Software Pvt Ltd. All rights reserved.   4
HBT Stage 6 (Assess and Analyze)
 Key focus: STEM discipline D7(Execution and defect
   reporting), D8(Test Management)
 Problems addressed:
 • Unable to plan test execution properly resulting in high cost of execution
 • Unable to set criteria for quality gates (no ownership for uncovering
   different defect types)
 • There is no test case attributes defined to choose and prioritize tests
 • Significant percentage of defects not traced to test case (no update to
   test case from learning from the context)
 • Cycle scoping seems not working (more test cycles than planned)
 • Our estimation and actual effort show big gaps
 • Risk management is weak




 Copyright 2011. STAG Software Pvt Ltd. All rights reserved.                    5
Summary
 Using D7 (Execution and defect reporting ), D8(Test
   management) we were able to address problems stated in
   previous slides
 • These discipline has well defined steps
 • Key deliverables: Execution status report, Defects, Updated
   test scenarios/cases, Key observations/learning, Test plan,
   Progress report, Cleanliness status report
 • STEM core concepts: Contextual awareness, Defect rating
   principle, Defect centered activity breakdown, Gating
   principle, Cycle scoping




 Copyright 2011. STAG Software Pvt Ltd. All rights reserved.     6
Thank You
         Email ID: nagaraj@stagsoftware.com
             @mcnagaraj




Copyright STAG Software Pvt. Ltd., 2011

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HBT Solution - Part 6 of 6

  • 1. ASSESS, ANALYZE AND MANAGE STAKEHOLDERS EXPECTATIONS BETTER M C Nagaraj Director – Customer Excellence in.linkedin.com/in/mcnagaraj
  • 2. Hypothesis Based Testing (HBT) A goal focused methodology to validation Six-stage evaluation model (S1-S6) S6 S1 Assess & Understand The central theme of HBT is ANALYZE EXPECTATIONS “hypothesize potential defects that can cause loss of expectations and S5 Tooling HBT Understand S2 prove that they will not exist” SUPPORT CONTEXT Devise Formulate The focus is on the goal and PROOF HYPOTHESIS how we shall achieve it rather than the various activities S3 S3 “goal-centric vs. activity-based” Copyright STAG Software Private Limited, 2009 2
  • 3. HBT and STEM “outcome” ‘deliver clean software S6 S1 GOAL quickly & cost-effectively’ Assess & Understand ANALYZE EXPECTATIONS D8 D1 Tooling D7 D2 S5 SUPPORT STEM Understand S2 “methodology” D6 D3 CONTEXT HBT a system of ways of doing D5 D4 ‘goal centered scientific approach to validation’ Devise Formulate PROOF HYPOTHESIS S3 S3 “method” STEM a particular way of doing something ‘defect detection technology from STAG’ Copyright STAG Software Private Limited, 2009 3
  • 4. HBT - six stages effectiveness guaranteed • Key focus in each stage • Empowered by scientific approach using eight disciplines (D1 to D8) of STEM • 32 core concepts address factors like effectiveness, consistency, scalability, efficiency, visibility and agility of test methodology • The outcome of each stage are well defined Copyright 2011. STAG Software Pvt Ltd. All rights reserved. 4
  • 5. HBT Stage 6 (Assess and Analyze) Key focus: STEM discipline D7(Execution and defect reporting), D8(Test Management) Problems addressed: • Unable to plan test execution properly resulting in high cost of execution • Unable to set criteria for quality gates (no ownership for uncovering different defect types) • There is no test case attributes defined to choose and prioritize tests • Significant percentage of defects not traced to test case (no update to test case from learning from the context) • Cycle scoping seems not working (more test cycles than planned) • Our estimation and actual effort show big gaps • Risk management is weak Copyright 2011. STAG Software Pvt Ltd. All rights reserved. 5
  • 6. Summary Using D7 (Execution and defect reporting ), D8(Test management) we were able to address problems stated in previous slides • These discipline has well defined steps • Key deliverables: Execution status report, Defects, Updated test scenarios/cases, Key observations/learning, Test plan, Progress report, Cleanliness status report • STEM core concepts: Contextual awareness, Defect rating principle, Defect centered activity breakdown, Gating principle, Cycle scoping Copyright 2011. STAG Software Pvt Ltd. All rights reserved. 6
  • 7. Thank You Email ID: nagaraj@stagsoftware.com @mcnagaraj Copyright STAG Software Pvt. Ltd., 2011