software engineering for the 21st century Jez Humble CTO, DevOps Research and Assessment LLC

v model

scrum- fall water-

agile principles our highest priority is to satisfy the customer through early and continuous delivery of valuable software

impact mapping Gojko Adzic, Impact Mapping

hypothesis-driven delivery We believe that [building this feature] [for these people] will achieve [this outcome]. We will know we are successful when we see [this signal from the market]. Jeff Gothelf “Better product definition with Lean UX and Design” http://bit.ly/TylT6A

experiments Different types of user research, courtesy of Janice Fraser

Jon Jenkins, “Velocity Culture, The Unmet Challenge in Ops” 2011 | http://bit.ly/1vJo1Ya

“Evaluating well-designed and executed experiments that were designed to improve a key metric, only about 1/3 were successful at improving the key metric!” do less “Online Experimentation at Microsoft”, Kohavi et al http://stanford.io/130uW6X

software delivery as a competitive advantage “Firms with high-performing IT organizations were twice as likely to exceed their profitability, market share and productivity goals.” http://bit.ly/2014-devops-report

time to restore service lead time for changes deploy frequency change fail rate software delivery performance http://bit.ly/2014-devops-report

capabilities that drive high performance Accelerate: The Science of Lean Software and DevOps, Forsgren, Humble and Kim 2018

technical practices http://bit.ly/2018-devops-report

lean product development Accelerate: The Science of Lean Software and DevOps, Forsgren, Humble and Kim 2018

apple macintosh “Instead of arguing about new software ideas, we actually tried them out by writing quick prototypes, keeping the ideas that worked best and discarding the others. We always had something running that represented our best thinking at the time.” “The Macintosh Spirit” | http://www.folklore.org/StoryView.py?project=Macintosh&story=The_Macintosh_Spirit.txt

“I think building this culture is the key to innovation. Creativity must flow from everywhere. Whether you are a summer intern or the CTO, any good idea must be able to seek an objective test, preferably a test that exposes the idea to real customers. Everyone must be able to experiment, learn, and iterate.” amazon’s innovation culture http://glinden.blogspot.com/2006/04/early-amazon-shopping-cart.html

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