I think that we are paid for our time at the job. Whether you are productive or not will result in disiplinary action, a raise, or a bonus. Goal based working is great, but again--if you DON'T get things done, perhaps you should be let go! Even on salary, (in theory) it evens out eventually! (I know, I know--don't shoot me for that one. I just left a salaried position, and damn happy about it, too. The benefits looked good when I signed up for salary ;-)).
The problem that I see with getting paid to get more stuff done in our field is that you would have to have a supervisor who knows what is going on!!! Too many supervisors see the network running fine and assue that you have been sitting on your butt all week! They don't tend to know that it is running well BECAUSE of your hard work. Even then, when it does down, are you getting paid for all of that hard work? Or do they assume that the network wouldn't have gone down if your previous work was done right?! I know that my argument is pretty weak, but you have to admit--for most of us, there is a lot of truth in this!
It would be difficult to even have a 'list' of goals, as you never know what is going to pop up and keep you from getting to anything on that list! Meanwhile, your working your backside off because somebody re-installed webshots!
No thanks. Hourly for me! Mudskipper
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Groucho said it best- "A four year-old child could understand this! Quick! Run out and find me a four year-old child: I can't make heads nor tails out of this!"