Multidatabase Global Conceptual Schema

Some multidatabase architectural models favor the definition of a global conceptual schema, whereas others do not.  What do you think? Justify your answer.
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csalvesConnect With a Mentor Commented:

I agree with the global Global Conceptual Model schema. I think when you design a IT system you need to have an easy way to look for the global conceptual schema. With a Global conceptual schema you can see the interception between of Data and DataFlow's by functional areas. I use to create Global schemas and smallest schemas by functional area. This aproach give me a Global View and a View by area.

A major advantage of this stratagie is refered by YORDON in "OO
Management Project's" like the only way to your client read your Analysis material. As you Know the client opinion is one of the most importante facts in a project


morgan1Author Commented:
This question was given to me as part of graduation requirements for a masters degree in computer science.  Answers to this question may be included in the response I give the professor.
I have two hetrogeneous databases (DB2 and MySql). I would like to integrate the dbs. could anyone also please list of requirements for integration of data for reporting. what would be my solution if I use i) existing database approach and ii) federated database approach.
Solution to the problem would be very much appreciated. Thanks.
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