HBT Solution - Part 4 of 6
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A presentation highlighting how stage 4 of HBT helps to define quality levels better and test adequacy.
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HBT Solution - Part 4 of 6
- 1. DESIGNING RIGHT SET OF MEASUREMENTS 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 stage personal test methodology • 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 4 (Devise Proof) Key focus: STEM discipline to design right set of measurements D6(Visibility) Problems addressed: • Unable to take objective decision fast • Too many measurements collected • Inconsistency in getting data on planned measurements from all projects • Key aspects to watch in reviews and related measurements link missing Copyright 2011. STAG Software Pvt Ltd. All rights reserved. 5
- 6. Summary Using D6 (Visibility ) we were able to address problems stated in previous slides • This discipline has well defined five steps • Key deliverables: List of measurements, place and frequency to collect them • STEM core concepts: GQM, Quality quantification model 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