CodeFest 2018. Dylan Beattie (Skills Matter) — Life, Liberty and the Pursuit of APIness : The Secret to Happy Code

Посмотрите выступление Dylan: https://2018.codefest.ru/lecture/1246/

We spend our lives working with systems created by other people. From the UI on our phones to the cloud infrastructure that runs so much of the modern internet, these interactions are fundamental to our experience of technology - as engineers, as developers, as users - and user experiences are viral. Great user experiences lead to happy, productive people; bad experiences lead to frustration, inefficiency and misery.

Whether we realise it or not, when we create software, we are creating user experiences. People are going to interact with our code. Maybe those people are end users; maybe they're the other developers on your team. Maybe they're the mobile app team who are working with your API, or the engineers who are on call the night something goes wrong. These may be radically different use cases, but there's one powerful principle that works across all these scenarios and more - and it's called discoverability. In this talk, we'll draw on ideas and insight from user experience, API design, psychology and education to show how you can incorporate discoverability into every layer of your application. We'll look at some real-world systems, and we'll discuss how how discoverability works with different interaction paradigms. Because, whether you're building databases, class libraries, hypermedia APIs or mobile apps, sooner or later somebody else is going to work with your code - and when they do, wouldn't it be great if they went away afterwards with a smile on their face?

Transcript

1. Life, Liberty, and the Pursuit of APIness The Secret to Happy Code Dylan Beattie @dylanbeattie www.dylanbeattie.net
2. @dylanbeattie • Building websites since 1992 • Microsoft MVP • London .NET User Group • www.dylanbeattie.net • dylan@dylanbeattie.net
4. http://starnewshq.deviantart.com/art/Comedy-and-Tragedy-325546823
6. http://www.mornota.com/beyninizi-gelistirin/
7. EXPERIENCE EXPERIENCE EXPERTISE EXPERTISE
8. EXPERIENCE EXPERTISE
9. How To Draw An Owl: 1: draw an oval for the head 2: draw an oval for the body 3: draw the rest of the owl
10. EXPERIENCE EXPERTISE
11. Server Error in '/' Application Looks like you forgot to register the http module Castle.MicroKernel.Lifestyle.PerWebRequestLifestyleModule. To fix this add <add name="PerWebRequestLifestyle" type="Castle.MicroKernel.Lifestyle.PerWebRequestLifeStyleModule, Castle.Windsor" /> to the <httpModules> section on your web.config
12. Do you believe in… the users?
14. (image from @DrunkVS via Twitter)
18. By MBlairMartin - Own work, CC BY-SA 4.0, https://commons.wikimedia.org/w/index.php?curid=50244059
19. A>
20. A>hello
21. A>hello Bad command or file name A>
22. A>hello Bad command or file name A>menu
23. A>hello Bad command or file name A>menu Bad command or file name A>
24. A>hello Bad command or file name A>menu Bad command or file name A>help
25. A>hello Bad command or file name A>menu Bad command or file name A>help Bad command or file name A>
26. A>
27. A>if you're happy and you know it, syntax error
28. A>if you're happy and you know it, syntax error Syntax error A>
29. A>if you're happy and you know it, syntax error Syntax error A>if you're happy and you know it, syntax error
30. A>if you're happy and you know it, syntax error Syntax error A>if you're happy and you know it, syntax error Syntax error A>
31. A>if you're happy and you know it, syntax error Syntax error A>if you're happy and you know it, syntax error Syntax error A>if you're happy and you know it and you really want to show it if you're happy and you know it syntax error
32. A>if you're happy and you know it, syntax error Syntax error A>if you're happy and you know it, syntax error Syntax error A>if you're happy and you know it and you really want to show it if you're happy and you know it syntax error Syntax error A>
34. Type Your Program Here
35. Microsoft Edge video
38. http://maxpixel.freegreatpicture.com/Heartbeat-Pulse-Healthcare-Heart-Medicine-163709
39. https://www.flickr.com/photos/philliecasablanca/2070476609/in/photostream/
44. Type Your Program Here
45. https://practicalmotoring.com.au/car-advice/common-car-warning-lights-explained/
46. Monty Python Lumberjack.
47. Time CPU Consumption 100% 80% 60% 40% 20% 0%
48. Time CPU Consumption 100% 80% 60% 40% 20% 0%
49. Time CPU Consumption 100% 80% 60% 40% 20% 0%
50. Time CPU Consumption 100% 80% 60% 40% 20% 0%
51. Time CPU Consumption 100% 80% 60% 40% 20% 0%
52. Time CPU Consumption 100% 80% 60% 40% 20% 0% 10:00 11:00 12:00 13:00 14:00 15:00
53. Time CPU Consumption 100% 80% 60% 40% 20% 0% Jan Feb Mar Apr May Jun Jul
54. FATAL ERROR WARN INFO DEBUG
55. FATAL •Application is completely unresponsive •Multiple users affected with immediate effect •Immediate attention. Stop what you’re doing and look into it.
56. ERROR & WARN •They will happen. •ERROR – one person noticed, maybe? •WARN – nobody noticed but it’s still odd. •Individual messages probably aren’t useful
57. https://universitycompare.com/articles/worst-commuters-sit-next-tube/
58. INFO •Everything’s fine •Startup, shutdown, cache recycle •In a perfect world, INFO is all you’ll ever see.
59. DEBUG http://hyperboleandahalf.blogspot.co.uk/
60. http://hyperboleandahalf.blogspot.co.uk/
62. log.Fatal Log.Error log.Warn log.Info log.Debug ――――― Wake_Me_Up_At_4AM_On_A_Sunday() ――――― Apologize_To_User_And_Raise_A_Ticket() ―――― Make_A_Note_In_Case_It_Happens_Again() ―――― Everything_Is_Fine_Just_Checking_In() ――――― Fill_My_C_Drive_With_Stack_Traces() Adapted from a post by Daniel Lebrero / https://labs.ig.com/logging-level-wrong-abstra
63. The Rules of Happy Code
67. Oxfordian Kissuth via Wikimedia Commons : https://commons.wikimedia.org/wiki/File:Hyde_Park_sign_post.jpg
70. Life, Liberty, and the Pursuit of APIness The Secret to Happy Code Dylan Beattie @dylanbeattie www.dylanbeattie.net
73. Enterprise Warp Drive http://memory-
75. Request Timed Out
77. Oxfordian Kissuth via Wikimedia Commons : https://commons.wikimedia.org/wiki/File:Hyde_Park_sign_post.jpg