Importance

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Abstract

An accounting system and method are incorporated into a data communication network conducted by a information provider which includes a central computer for data communication with a user computer. Download data, such as route guidance data, is transmitted from the central computer of the information provider to the user computer, whereas the upload data which is available to enrich a database in the central computer is transmitted from the user computer to the central computer. The central computer determines accounts payable by the user in accordance with the content and/or volume of the download data. It also determines a reward for the user in accordance with the content and/or volume of the upload data. An amount that is a balance obtained by subtracting the reward from the accounts receivable is charged to the user. Therefore, the more upload data sent by the user to the central computer and the more it is utilized, the more the user's expense for the service provided by the information provider is reduced.

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First Claim