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Is there a Golden Ratio? Test Specialist to Developer in an Agile team
- 1. Is there a Golden Ratio? Test Specialist to Developer in an Agile Team - an experience report Debashis Banerjee deba_ban_2000@yahoo.com
- 3. An Agile Scrum Team typically consists of • Primarily • Development Specialists • Test Specialists (Manual + QA Automation) • Scrum Master • Product Owner • Other cross functional roles • Supported by • Documentation Specialist (shared) • Localization specialists (Shared) • Deployment specialists (shared) • Other stakeholders (People managers, business owners)
- 4. When might you use these ratios?
- 5. Some examples of actual use…. Greenfield work Seeking additional funding A Product with Device Heavy testing Highly Automated Product with higher Agile Adoption Technology infrastructure movement Project
- 6. Observed Decision Factors in each case
- 7. Should the ratio even matter in Agile Teams? • Role Agnostic Agile Teams • Developers Test and Automate & Develop • Testers Develop and Test and Automate • Based on Phase of the product adjust Backlogs • Results from a Sprint in a Consumer Product: • The developers picked up functional testing , Ran automation, Tester pair tested for some time • The test engineer picked up defects • Impact: Burndown and backlogs became faster. More velocity, Better Engagement • To achieve this invested in: • Training and Skill Development • Expectation Management • Management Support • Creating a phased approach as per matrix earlier to gradually adjust ratio
- 8. Top Insights • Ratios for developer to test specialists can be higher in Agile development as compared to a non agile project. • It is possible to have a cross functional team with specializations but not role descriptions – thus no defined Dev : Test Ratio • It is possible to move across the ratio back and forth much easier in Agile projects from 1:1 or 2:1 it is possible to move from this to a ratio such as 4:1 or 8:1 • Focusing on this aspect can help speeding up Scrum/Agile adoption. • Solutions that emerge to allow this to ratio adapt such as Crowd testing, Dog Fooding can help improve product development
- 9. Image Credits • Image credit: http://web-profile.com.ua/web/web-design/golden- ratio/ • http://health.mo.gov/training/epi/RatiosProportionsRates.html • http://www.derailleurconsulting.com/agile-services • https://en.wikipedia.org/wiki/Golden_ratio • http://www.flashcardlearner.com/articles/the-learning-curve/ • http://www.tenthhouse.com.au/consumer-insights/ • http://www.slideshare.net/prasanthkhanna/ratio-analysis-34686453
Editor's Notes
- This is the golden ratio of mathematics: https://en.wikipedia.org/wiki/Golden_ratio (30 secs)
- Explain and set context that the agile scrum team consists of these roles (not to define roles but set expectations of context) – 30 secs
- Ask the audience to try and identify the parameters and items where they might use this ratios – 3 minutes
- Speak to actual project example and tie in with audience inputs from earlier slides – 2 minutes
- based on what the audience says and the type of products for each and specify the talk – 8 minutes
- Talk through the experiment done on certain sprints which showed good results to have a role agnostic developers test and testers code. – 3 mins
- Conclude with learnings – 2 mins