I don't know about tourism...  but if you are looking to work, I personally wouldn't bother. Wages are very low, work is hard, conditions are unfair and bordering on illegal, and you will return home with less money that you came with sometimes! 

The best thing to do is speak to your country's consulate to the UAE. They will give you all details for the visa application to Dubai. Expect it to be rather stringent though, that's the impression I get from that state. Foreigners not welcome unless they have cash to spend.