Dishwashers, Software, and Open Source

Also known as "How to fix a Dishwasher (and also Software)." Presented at TWG on October 8th, 2014.

Transcript

1. DISHWASHERS, SOFTWARE, AND OPEN SOURCE.
3. CLEAN DISHES DISHWASHER DIRTY DISHES
4. DIRTY DISHES DISHWASHER DIRTY DISHES
5. DIRTY DISHES DISHWASHER BROKEN DIRTY DISHES
6. BROKEN aside!
7. “IT’S ” BROKEN aside!
8. “IT’S ” BROKEN “It’s broken? Do you know what’s wrong with it? I can get someone out there to take a look next week or so, maybe.” aside!
9. “IT’S ” BROKEN can mean “I’m surprised.” aside!
10. “IT’S ” BROKEN can mean “I’m unhappy.” aside!
11. “IT’S ” BROKEN expresses exactly 1 bit of information. aside!
12. NOT BROKEN BROKEN aside!
13. NOT BROKEN BROKEN DON’T REPLACE REPLACE aside!
14. If you care about fixing something, you need to be more descriptive than “broken”. aside!
15. DIRTY DISHES DISHWASHER “BROKEN” DIRTY DISHES
16. DIRTY DISHES DISHWASHER “BROKEN” DIRTY DISHES opaque black box
17. DIRTY DISHES DISHWASHER “BROKEN” DIRTY DISHES opaque black box WATER
18. DIRTY DISHES DISHWASHER “BROKEN” DIRTY DISHES opaque black box WATER POWER
19. DIRTY DISHES DISHWASHER “BROKEN” DIRTY DISHES opaque black box WATER POWER SOAP
20. DIRTY DISHES DISHWASHER “BROKEN” DIRTY DISHES opaque black box WATER POWER HEAT SOAP
21. DIRTY DISHES DISHWASHER “BROKEN” DIRTY DISHES opaque black box WATER POWER HEAT NOISE SOAP
22. DIRTY DISHES DISHWASHER “BROKEN” DIRTY DISHES opaque black box WATER POWER HEAT WATER NOISE SOAP
23. DIRTY DISHES DISHWASHER “BROKEN” DIRTY DISHES opaque black box WATER POWER HEAT WATER NOISE SOAP
24. DIRTY DISHES DISHWASHER “BROKEN” DIRTY DISHES opaque black box WATER POWER HEAT NO WATER NOISE SOAP
25. If we can’t look in the black box, then we can guess at what happens inside.
26. DIRTY DISHES DISHWASHER “BROKEN” DIRTY DISHES opaque black box WATER POWER HEAT NO WATER NOISE Why is the machine not draining? SOAP
27. HYPOTHESIS: THE DRAIN MECHANISM IS BROKEN
29. “IT’S ” BROKEN
30. “I’m pretty sure the drain pump is broken.” “IT’S ” BROKEN
31. “I’m pretty sure the drain pump is broken.” “Oh, that’s easy to fix - I’ll order you a new one online and you can install it yourself.”
32. What does this have to do with software?
33. CLEAN DISHES DISHWASHER DIRTY DISHES opaque black box
34. OUTPUT CLOSED SOURCE SOFTWARE INPUT opaque black box
35. If we can’t look in the black box, then we can guess at what happens inside.
37. OUTPUT CLOSED SOURCE SOFTWARE INPUT opaque “black” box
38. OPEN SOURCE SOFTWARE OUTPUT INPUT transparent “white” box
39. Open source means that we can look inside the box and fix problems more easily.
40. “Mural Dishwasher” by Marie-Christine Lacasse & Marie Claude Savard, Université du Québec à Montréal
41. Most software we all use is open source. We can’t be afraid to look “inside the box” and fix things.
42. We’re hiring! Come help us use technology to solve problems.