Sorry if the question sounds too vague. I will improve based on your feedback.
I have managed to prepare a UML model of a problem domain. This is essentially a class diagram describing class attributes and aggregation relationships amongst classes. Intention now is to fill data.
For example, class-A aggregates N instances of Class-B. I would like to create a data model that has data for one instance Class-A and 5 instances of Class-B.
Basically, data pertaining to this meta model is available in a document (e.g. xls, framemaker) and it should be possible to read the source and populate the data model.
Are there tools that will let me create this data model? Please advise.