Patent ID: 7949940

Claim:
A data entry restriction method for determining whether to accept or rejected entered structured markup documents, comprising the steps of: Comparing a structure of a structured markup document entered with previously defined flexibility requirements indicating allowable ranges for document structure; Adding, when the structured markup document entered does not meet the flexibility requirements which define a numeric value indicative of aggression for every item, a numeric value indicative of aggression corresponding to an item violated by the structured markup document entered to a total calculated by summing numeric values indicative of aggression of past structured markup documents sent from the client computer, the total associated with an IP address of a client computer that is a sender of the structured markup document entered; Extracting the IP address from a connection request for transfer of a structured markup document from the client computer when the connection request is received from the client computer; and Rejecting connection requests which include the IP address of the client computer without receiving a message following the connection requests and without establishing a connection for receiving the structured markup documents, when a total of the numeric values indicative of aggression associated with the IP address becomes a prescribed value or greater.