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Episode Info: We wrap up the second way from The DevOps Handbook, while Joe has a mystery episode, Michael doesn’t like ketchup, and Allen has a Costco problem. These show notes, in all of their full sized digital glory, can be found at https://www.codingblocks.net/episode142, where you can join the conversation, for those using their podcast player to read this. Sponsors Datadog – Sign up today for a free 14 day trial and get a free Datadog t-shirt after your first dashboard.Survey Says Anonymous VoteSign in with WordpressWhen a new mobile OS update comes out on iOS or Android, do you ...Update as fast as possible. I can't get the new bits fast enough.Wait for a stable release.Never update.vote News We appreciate the new reviews, thank you!iTunes: Jynx_ProtocolStitcher: IllKeepItEasyForYouMike, KingJArthurTreating Features as Experiments Integrate Hypothesis Driven Development and A/B Testing “The most inefficient way to test a business model or product idea is to build the complete product to see whether the predicted demand actually exists.”Jez Humble Constantly ask should we build it and why? A/B testing will allow us to know if an idea is worthwhile because allows for fast-feedback on what’s working.Doing these experiments during peak season can allow you to out-experiment the competition.But this is only possible if you can deploy quickly and reliably.This allows A/B testing to support rapid, high-velocity experiments.A/B test is also known as “split testing”.A/B testing is where one group sees one version of a page or feature and the other group sees another version.Study from Microsoft found that only about 1/3 of features actually improved the key metric they were trying to move!The important takeaway? Without measuring the impact of features, you don’t know if you’re adding value or decreasing it while increasing complexity.Integrate A/B Testing Into Releases Effective A/B testing is only possible with the ability to do production releases quickly and easily.Using feature flags allow you to delivery multiple versions of the application without requiring separate hardware to be deployed to. This requires meaningful telemetry at every level of the stack to understand how the application is being used.Etsy open-sourced their Feature API, used for online ramp-ups and throttling exposure to features.Optimizely and Google Analytics offer similar features.Integrating A/B Testing into Feature Planning Tie feature changes to actual business goals, i.e. the business has a hypothesis and an expected result and A/B testing allows the business owner to experiment.The ability to deploy quickly and reliably is what enables these experiments.Create Processes to Increase Quality Eliminate the need for “approvals” from those not closely tied to the code being deployed.Development, Operations and InfoSec should constantly be collaborating.The Dangers of Change Approval Process Bad depl...
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