Marketing management.

Marketing management personnel need a lot of information for executing his work. While, frequently there is too much wrong information which they have collected, correct information is not enough. A good designed and organization Marketing Information System should possess following function:
1.The system must decide which information is necessary.
2.After collecting original data, the system should change the information into the mode marketing personnel could immediately use.
3.The system should distinguish and send correct information to correct management personnel.