In the world of management, where we can put the fish bone diagram?

For arranging the potential causes of a problem related to any issue in the organization. Once it is arranged, detailed analysis to be done to identify real cause or route cause....

Decision-making

Fishbone and mind maps is the family of problem soling techniques, useful for breaking a big problem down into bite size chunks and a good way of discovering the root causes of the problem in hand. 

you can apply and put it in every management as long as problems exist, the fishbone diagram also exist...

mostly used in basic designing!

mostly used in finding the cause of the problem!

mostly used, to forsee the flow of datum!

Check in the link.

http://www.change-management-consultant.com/fishbone-diagram.html

+1 for Ali Medjadba, as soon as problem/showstopper arise...fishbone/mindmap will be a good tool at your disposal.

I agree with Ahmeds answer. It is a decision making technique to clearly define problems.