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Dishwashers, Software, and Open Source
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Peter Sobot
October 08, 2014
Technology
0
150
Dishwashers, Software, and Open Source
Also known as "How to fix a Dishwasher (and also Software)." Presented at TWG on October 8th, 2014.
Peter Sobot
October 08, 2014
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Transcript
DISHWASHERS, SOFTWARE, AND OPEN SOURCE.
None
CLEAN DISHES DISHWASHER DIRTY DISHES
DIRTY DISHES DISHWASHER DIRTY DISHES
DIRTY DISHES DISHWASHER BROKEN DIRTY DISHES
BROKEN aside!
“IT’S ” BROKEN aside!
“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!
“IT’S ” BROKEN can mean “I’m surprised.” aside!
“IT’S ” BROKEN can mean “I’m unhappy.” aside!
“IT’S ” BROKEN expresses exactly 1 bit of information. aside!
NOT BROKEN BROKEN aside!
NOT BROKEN BROKEN DON’T REPLACE REPLACE aside!
If you care about fixing something, you need to be
more descriptive than “broken”. aside!
DIRTY DISHES DISHWASHER “BROKEN” DIRTY DISHES
DIRTY DISHES DISHWASHER “BROKEN” DIRTY DISHES opaque black box
DIRTY DISHES DISHWASHER “BROKEN” DIRTY DISHES opaque black box WATER
DIRTY DISHES DISHWASHER “BROKEN” DIRTY DISHES opaque black box WATER
POWER
DIRTY DISHES DISHWASHER “BROKEN” DIRTY DISHES opaque black box WATER
POWER SOAP
DIRTY DISHES DISHWASHER “BROKEN” DIRTY DISHES opaque black box WATER
POWER HEAT SOAP
DIRTY DISHES DISHWASHER “BROKEN” DIRTY DISHES opaque black box WATER
POWER HEAT NOISE SOAP
DIRTY DISHES DISHWASHER “BROKEN” DIRTY DISHES opaque black box WATER
POWER HEAT WATER NOISE SOAP
DIRTY DISHES DISHWASHER “BROKEN” DIRTY DISHES opaque black box WATER
POWER HEAT WATER NOISE SOAP
DIRTY DISHES DISHWASHER “BROKEN” DIRTY DISHES opaque black box WATER
POWER HEAT NO WATER NOISE SOAP
If we can’t look in the black box, then we
can guess at what happens inside.
DIRTY DISHES DISHWASHER “BROKEN” DIRTY DISHES opaque black box WATER
POWER HEAT NO WATER NOISE Why is the machine not draining? SOAP
HYPOTHESIS: THE DRAIN MECHANISM IS BROKEN
None
“IT’S ” BROKEN
“I’m pretty sure the drain pump is broken.” “IT’S ”
BROKEN
“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.”
What does this have to do with software?
CLEAN DISHES DISHWASHER DIRTY DISHES opaque black box
OUTPUT CLOSED SOURCE SOFTWARE INPUT opaque black box
If we can’t look in the black box, then we
can guess at what happens inside.
None
OUTPUT CLOSED SOURCE SOFTWARE INPUT opaque “black” box
OPEN SOURCE SOFTWARE OUTPUT INPUT transparent “white” box
Open source means that we can look inside the box
and fix problems more easily.
“Mural Dishwasher” by Marie-Christine Lacasse & Marie Claude Savard, Université
du Québec à Montréal
Most software we all use is open source. We can’t
be afraid to look “inside the box” and fix things.
We’re hiring! Come help us use technology to solve problems.