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The 10 commandments of an agile tester in a legacy world
- 1. Cisco Confidential 1© 2011 Cisco and/or its affiliates. All rights reserved. Barak Benjo Manager Engineering @ Cisco Video Technologies Agile Practitioners 2015 @BarakBenjo
- 2. © 2011 Cisco and/or its affiliates. All rights reserved. Cisco Confidential 2 • Until recently 13 years in QA business QA tester QA architect QA manager • Today R&D group manager @ Cisco Video Technologies Working on wide variety of products & technologies Both Legacy and Agile
- 3. I will give you triggers, it is up to you to leverage them
- 4. © 2011 Cisco and/or its affiliates. All rights reserved. Cisco Confidential 4
- 5. • The working team is built from two different groups: Dev & Test • Legacy Product • Embedded SW • 75% of the code is being reused 25% can be customized per platform or customer • 95% Automated tests • CI exists to some extent • Not an Agile product Requirements, constrains, Dependencies, Milestones, Deliverables Are known at product kickoff • Product scheduling – strictly waterfall
- 6. • A waterfall lifecycle • Test engineer can be engaged in more than one product at a given time • Working culture between the different groups are not the same • Developers completely rely on Test engineers • Communication between the different parties is good and yet, something is missing • The “problem” responsibility is not equally shared ABOVE ALL - Rapid development and Slow testing
- 7. …an old method, technology, computer system, or application program that continues to be used, typically because it still functions for the users’ needs, even though newer technology or more efficient methods of performing a task are now available.” http://en.wikipedia.org/wiki/Legacy_software In short – it is old
- 8. © 2011 Cisco and/or its affiliates. All rights reserved. Cisco Confidential 8 “ [Agile is Rational, Rational is Agile Series: Agile for Legacy Projects, Are You Serious?]
- 10. Context • The value of any practice depends on its context • There are good practices in context, but there are no best practices People • People, working together, are the most important part of any project’s context • Good software testing is a challenging intellectual process. Product • Projects unfold over time in ways that are often not predictable • The product is a solution. If the problem isn’t solved, the product doesn’t work Effective • Only through judgment and skill, exercised cooperatively throughout the entire project, are we able to do the right things at the right times to effectively test our products.
- 11. Functional Tests Examples Story Tests Prototypes Simulations Exploratory Testing Scenarios Usability Testing User Acceptance Testing Unit Tests Component Tests Performance & Load Testing Security Testing “-ility” Testing Q2 Q3 Q1 Q4 SupportstheTeam CritiqueProduct Technology-Facing Business-Facing Lisa Crispin & Janet Gregory version
- 12. Goals Drive development with Business-facing tests Gain collaboration between all parties (including customer) Benefits Achieve advanced clarity on the product Use real examples as executable tests Achieve external quality Goals Help to evaluate the product Understand actual user experiences Benefits Feedback to Q1 and Q2 Learn about the product as you test Goals Enable to measure the internal quality of the code Benefits Provide a safety net to the developers, enable stabilization, provide confidence in design and more Goals Does the product deliver the right value? Benefits Non-functional requirements are being tested Help to finalize the product Q2 Q3 Q1 Q4 SupportstheTeam CritiqueProduct Technology-Facing Business-Facing
- 13. © 2011 Cisco and/or its affiliates. All rights reserved. Cisco Confidential 13
- 14. © 2011 Cisco and/or its affiliates. All rights reserved. Cisco Confidential 14 Easy import to the Legacy world Start Small • Better understanding between all parties. • Better collaboration.Parties • Stabilization throughout the product lifecycle.Stability • Determine the correct Development methods, Testing tools and Techniques to be used. Methods • Concentrate on the real needs of the customer. • Determine the correct quality for the different stages in the lifecycle. Right Thing
- 15. © 2011 Cisco and/or its affiliates. All rights reserved. Cisco Confidential 15 Custom test strategy Test from the outside in Customer interactions must be preserved through automated tests
- 16. • Legacy software needs a custom testing strategy • Choose & adapt your practice wisely • You can leverage your work within the Legacy system • Divide and Conquer Implement Context Driven Testing - CDT and Agile are good friends Work with the Agile Quadrants • As a tester - Be there from start • Communicate with whom ever can help you test the product • Big journeys begins with small steps • Being an Agile practitioner within a Legacy world is hard but doable • Adapt, Adapt, Adapt
Editor's Notes
- #3: קצת על עצמי אחראי על בדיקות של הכרטיס החכם במערכות הכבלים והלוויין מדובר בסביבת EMBEDDED שמשלבת חומרה ותוכנה אם כי הפוקוס הוא יותר על התוכנה רוב הדרישות והתשתיות למוצר ידועות מראש כך שקשה לעבוד בצורה אג'ילית רשמית אם זאת אנחנו כל הזמן מחפשים דרכים לשפר ולייעל את הקיים בכך שאנחנו: מבינים יותר את צורכי הלקוח ובכך מונעים OVERPRODUCTION יוצרים קשר הדוק עם כל ה STAKEHOLDERS שנוגעים במוצר מייעלים את תהליכי הפיתוח והבדיקות כך שהפידבק לאורך חיי המוצר יהיה מהיר ויעיל ובעיקר מתקשרים הרבה