The interfaces of our world: the known, the unexpected, and the risks of failure

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The interfaces of our world: the known, the unexpected, and the risks of failure Brent Miller Lead software engineer at New Relic @foliosus

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@foliosus http://bit.ly/interfaces-fs14 2 @foliosus • insert content here

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@foliosus http://bit.ly/interfaces-fs14 3 brent = FrontEndEngineer.new( twitter: '@foliosus', likes: ['Ruby', 'CSS', 'typography', 'plants'], dislikes: ['boilerplate code', 'being braindead'] ) #fs14

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@foliosus http://bit.ly/interfaces-fs14 4 Road map What is an interface? Interface interpretation Interfaces are contracts  (except when they aren’t) Interfaces & failure in your company

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Pay attention! https://ﬂic.kr/p/akCNRA

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@foliosus http://bit.ly/interfaces-fs14 6 Interface

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@foliosus http://bit.ly/interfaces-fs14 7 It’s what happens when two things interact

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http://justamazingthings.blogspot.com/2012/07/top-10-creative-coffee-cup-designs.html

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http://justamazingthings.blogspot.com/2012/07/top-10-creative-coffee-cup-designs.html

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@gorbypuff

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https://ﬂic.kr/p/8yuMiC

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www.growsmarttoys.com/blog/2012/08/technology-vs-toys/

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@foliosus http://bit.ly/interfaces-fs14 13 Interfaces are interpreted

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https://ﬂic.kr/p/8QitFQ

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@foliosus http://bit.ly/interfaces-fs14 15 That’s what they’re for! http://www.instructables.com/id/Portable-ﬁre-pit-with-built-in-log-storage-rack-1/

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@foliosus http://bit.ly/interfaces-fs14 16 How many uses can you think of for a paperclip?

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@foliosus http://bit.ly/interfaces-fs14 17 Percentage of people who are divergent thinking geniuses 0% 25% 50% 75% 100% Kindergarten 5th grade 10th grade Adults

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totality images https://ﬂic.kr/p/72X8ZQ

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Photo by Lucas Jackson http://america.aljazeera.com/articles/2014/8/17/ferguson-clash-shooting.html AP Photo/Jeff Roberson http://www.thenation.com/article/181315/catalog-ferguson-police-weaponry

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@foliosus http://bit.ly/interfaces-fs14 21 What is a paperclip’s interface?

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@foliosus http://bit.ly/interfaces-fs14 22 Interfaces are contracts

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@foliosus http://bit.ly/interfaces-fs14 23 public interface ApplicationNamingPolicy {! ! public void setApplicationName( Transaction transaction,! String name,! ApplicationNamePriority priority );! ! public boolean canSetApplicationName( Transaction transaction,! ApplicationNamePriority priority );! ! }!

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@foliosus http://bit.ly/interfaces-fs14 24 SOA APIs

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rub the belly! https://ﬂic.kr/p/buRfjX

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danger zone

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mmm… tasty beverage

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magma   zone https://ﬂic.kr/p/jDNLpX

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@foliosus http://bit.ly/interfaces-fs14 29 Shared history or experience helps

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https://ﬂic.kr/p/9BDqV5

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https://ﬂic.kr/p/781eZw

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http://kotaku.com/destiny-really-needs-beards-1627845173

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@foliosus http://bit.ly/interfaces-fs14 34 Your future stack

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What stack is right for you? https://ﬂic.kr/p/5F8LDj

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it doesn’t matter as much as you think

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it’s all about the chefs

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https://flic.kr/p/knDPjc https://flic.kr/p/qCLeh https://flic.kr/p/97ffWm https://flic.kr/p/knDPjc https://flic.kr/p/dghGTs

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@foliosus http://bit.ly/interfaces-fs14 39 Managing culture == managing interfaces

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@foliosus http://bit.ly/interfaces-fs14 40 Code

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Teams https://ﬂic.kr/p/mZjRpD

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Managers http://fogsmoviereviews.com/2012/07/09/movies-that-everyone-should-see-ofﬁce-space/

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Leadership https://ﬂic.kr/p/8sWeq

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http://www.designntrend.com/articles/5078/20130620/john-mcafee-news-update-guns-strippers-cigarettes-appear-uninstallment-tutorial.htm

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Cliiiiiiiiiiiiiiiiiiiipers! http://www.hufﬁngtonpost.com/2014/08/19/ballmer-leaves-microsoft-clippers_n_5692193.html

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@foliosus http://bit.ly/interfaces-fs14 47 Understand & honor the contract. Let people know when you change it. Always think of the users! Be kind to them.   They will reward you.

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Questions? Come to the hacker lounge, or continue the convo on Twitter   @foliosus #fs14 Thank you