Information processing technique relating to relation between users and documents

A program embodied on a medium, for causing a computer to execute an information processing, said program comprising:

• generating first relational data representing a relation between a document and a user by referring to access logs generated in response to accesses to documents;
• and
• generating second relational data representing a relation between documents, between users and between said documents and said users by using said first relational data.

A computer system, comprising:

• a unit that generates first relational data representing a relation between a document and a user by referring to access logs generated in response to accesses to documents;
• and
• a unit that generates second relational data representing a relation between documents, between users and between said documents and said users by using said first relational data.