Data management system, data management method and computer program

A data management system comprising:

• acceptance means for accepting various retrieval conditions for a plurality of data storage means in which plural kinds of customer data identifiable by each ID are distributively stored;
• retrieval means for retrieving data adapted to each of the accepted retrieval conditions from any one of said data storage means and specifying a customer ID of the data retrieved;
• holding means for holding the ID specified by said retrieval means as part of a collection of retrieval results collected for each retrieval condition;
• and
• means for taking in customer-related data created in an external system and containing the ID to add the ID contained in the taken-in data as part of the collection held in said holding means,
• wherein the collection held in said holding means is set as a target of retrieval instead of said plurality of data storage means.

A computer-based data management method implemented on a computer connected to data storage means in which data belonging to any of multiple managed objects are stored, the data management method comprising the steps of:

• accepting various retrieval conditions;
• retrieving data adapted to each of the accepted retrieval conditions from said data storage means and specifying a managed object to which the retrieved data belong;
• and
• holding identification information for identifying the specified managed object in certain holding means as part of a collection of retrieval results collected for each retrieval condition,
• wherein the collection held in said holding means is set as a target of retrieval instead of said data storage means.

A computer program which enables data retrieval on a computer connected to data storage means in which data belonging to any of multiple managed objects are stored, the computer program comprising the steps of:

• accepting various retrieval conditions;
• retrieving data adapted to each of the accepted retrieval conditions from said data storage means and specifying a managed object to which the retrieved data belong;
• and
• holding identification information for identifying the specified managed object in certain holding means as part of a collection of retrieval results collected for each retrieval condition,
• wherein the collection held in said holding means is set as a target of retrieval instead of said data storage means.