How Many Software Engineers -- Does It Take To Change A Light Bulb?

How many software engineers -- does it take to change a light bulb?
Four. One to design the change, one to implement it, one to document it, and one to maintain it afterwards....
How many software engineers -- does it take to change a light bulb?
Two. One always leaves in the middle of the project....
How many software engineers -- does it take to change a light bulb?
Wait! Maybe the bulb isn't broken. Let's try it again....
How many software engineers -- does it take to change a light bulb?
The change is 90 percent complete....
How many software engineers -- does it take to change a light bulb?
It's hard to say. Each time we separate the bulb into its modules to do unit testing, it stops working....
How many software engineers -- does it take to change a light bulb?
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,....
How many hardware engineers -- does it take to change a light bulb?
None. "We'll fix it in software....
How many software engineers -- does it take to change a light bulb?
None. It's a hardware problem....
How many software engineers -- does it take to change a light bulb?
None. "We'll document it in the manual....