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Programming for API design as UX design Humans

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Emily Hyland Senior Software Engineer at New Relic Ruby & JavaScript

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WHO this is for WHATit means WHYit’s a good idea WHENto apply it HOWit works

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everybody code is for people, even when it’s internal or part of a side project

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remote calls exposed
 to consumers API

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remote calls exposed
 to consumers classes, methods, and variables in a codebase even when private API —

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the subjective experience
 of using software ease of use and emotional connection user experience —

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the qualities or properties
 of an object that define its possible uses or make clear how it can or should be used affordance http://www.merriam-webster.com/dictionary/affordance

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WHAT WHY WHEN HOW WHO

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reusable knowledge a consistent interface lets you apply things you already learned

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discoverability it’s easier to jump in when you can tell what something is for

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empathetic & personal design patterns and best practices are abstract this is how they affect humans —

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writing code step back every so often to consider your approach

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code reviews you’re already in the
 right frame of mind

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choosing tools look at the conventions
 and documentation

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follow convention is there a pattern that’s already established?

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imagine the user why are they using your code? what is their goal?

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write the README before you write the code think how you’ll use it, not the implementation

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Programmers often feel joy when they can concentrate on the creative side of programming, so Ruby is designed to make programmers happy. I consider a programming language as a user interface, so it should follow the principles of user interface. – Yukihiro Matsumoto