None. It's a hardware problem.
1.000000001.
Two. One always leaves in the middle of the project.
Four. One to design the change, one to implement it, one to document it, and one to maintain it afterwards.
Four, plus one senior analyst to manage the project, one technical writer to correct the spelling and grammar of the one who documented it, one light bulb librarian, a sales-force of at least five to drum up enough users who want to turn the light on, 274 users to burn out the new bulb, at which point we go to tender for another light bulb change,...
Five. Two to write the specification program, one to screw it in, and two to explain why the project was late.
Only one, but she's not available till the year 2000.
The change is 90% complete.
It's hard to say. Each time we separate the bulb into its modules to do unit testing, it stops working.
How many maintenance programmers does it take to change a light bulb?
None. They try to fix the old one.
"We looked at the light fixture and decided there's no point trying to maintain it. We're going to rewrite it from scratch. Could you wait two months?"
How many software testers does it take to change a light bulb?
None. "We just recognised darkness, fixing it is someone else's problem."
How many C++ programmers does it take to change a light bulb?
"You're still thinking procedurally! A properly designed light bulb object would inherit a change method from a generic light bulb class!"
How many Windows programmers does it take to change a light bulb?
Seventy two. One to write WinGetLightBulbHandle, one to write WinQueryStatusLightBulb, one to write WinGetLightSwitchHandle ...
How many data base people does it take to change a light bulb?
Three: One to write the light bulb removal program, one to write the light bulb insertion program, and one to act as a light bulb administrator to make sure nobody else tries to change the light bulb at the same time.
How many IBM employees does it take to change a light bulb?
Fifteen. Five to do it, and ten to write document number GC7500439-001, Multitasking Incandescent Source System Facility, of which 10% of the pages state only "This page intentionally left blank".
How many technical writers does it take to change a light bulb?
Just one, provided there's a programmer around to explain how to do it.
How many Microsoft support staff does it take to change a lightbulb?
Four. One to ask "What is the registration number of the lightbulb?", one to ask "Have you tried rebooting it?", another to ask "Have you tried reinstalling it?" and the last one to say "It must be your hardware because the lightbulb in our office works fine".
