Program and method for restricting data entry

• US 20050034032A1
• Filed: 06/09/2004
• Published: 02/10/2005
• Est. Priority Date: 08/08/2003
• Status: Active Grant

• Current Assignee: Fujitsu Limited
• Original Assignee: Fujitsu Limited
• Inventors: Uchida, Masaru
• Granted Patent: US 7,949,940 B2
• Time in Patent Office: Days
• US Class Current: 714/48
• CPC Class Codes: G06F 21/52 during program execution, e.g. stack integrity ; Preventing unwanted data erasure; Buffer overflow

Abstract

A data entry restriction program capable of rejecting invalid structured documents out of structured documents of a general-purpose format with great flexibility. When a structured document is entered, a data entry restriction apparatus compares the structure of the structured document with flexibility requirements (step S1). When the structured document does not meet the flexibility requirements, the data entry restriction apparatus records error information in association with the sending client of the document (step S2). After the error information associated with the client exceeds prescribed limits, the data entry restriction apparatus rejects structured documents from the client (step S3). Structured documents which meet the flexibility requirements and the data entry restriction apparatus has accepted are entered into a data processing apparatus and analyzed (step S4).

Claims

1. A data entry restriction program to determine whether to accept or reject entered structured documents, the data entry restriction program causing a computer execute the steps of:

(a) comparing a structure of a structured document entered with previously defined flexibility requirements indicating allowable ranges for document structure;

(b) recording error information in association with a client who is a sender of the structured document entered when the structured document entered does not meet the flexibility requirements; and

(c) rejecting structured documents from the client after the error information associated with the client exceeds prescribed limits.

2. The data entry restriction program according to claim 1, wherein said rejecting step (c) rejects the structured documents from the client after a number of errors caused by past structured documents from the client becomes a prescribed number or greater.

3. The data entry restriction program according to claim 1, wherein:

said recording step (b) records the error information including a numeric value indicative of aggression corresponding to an item violated when the structured document does not meet the flexibility requirements which define a numeric value indicative of aggression for every item; and

said rejecting step (c) rejects the structured documents from the client after a total calculated by summing numeric values indicative of aggression included in the error information associated with the client becomes a prescribed value or greater.

4. The data entry restriction program according to claim 1, wherein said comparing step (a) discards the structured document entered when the structure of the structured document does not meet the flexibility requirements.

5. A data entry restriction method for determining whether to accept or reject entered structured documents, comprising the steps of:

(a) comparing a structure of a structured document entered with previously defined flexibility requirements indicating allowable ranges for document structure;

(b) recording error information in association with a client who is a sender of the structured document entered when the structured document entered does not meet the flexibility requirements; and

(c) rejecting structured documents from the client after the error information associated with the client exceeds prescribed limits.

6. The data entry restriction method according to claim 5, wherein said rejecting step (c) rejects the structured documents from the client after a number of errors caused by past structured documents from the client becomes a prescribed number or greater.

7. The data entry restriction method according to claim 5, wherein:

said recording step (b) records the error information including a numeric value indicative of aggression corresponding to an item violated when the structured document does not meet the flexibility requirements which define a numeric value indicative of aggression for every item; and

said rejecting step (c) rejects the structured documents from the client after a total calculated by summing numeric values indicative of aggression included in the error information associated with the client becomes a prescribed value or greater.

8. The data entry restriction method according to claim 5, wherein said comparing step (a) discards the structured document entered when the structure of the structured document does not meet the flexibility requirements.

9. A data entry restriction apparatus for determining whether to accept or reject entered structured documents, comprising:

flexibility check means for comparing a structure of a structured document with previously defined flexibility requirements indicating allowable ranges for document structure;

error information recording means for, recording error information in association with a client who is a sender of the structured document when the structured document entered does not meet the flexibility requirements; and

rejecting means for rejecting structured documents from the client after the error information associated with the client exceeds prescribed limits.

10. The data entry restriction apparatus according to claim 10, wherein said rejecting means rejects the structured documents from the client after a number of errors caused by past structured documents from the client becomes a prescribed number or greater.

11. The data entry restriction apparatus according to claim 10, wherein:

said error information recording means records the error information including a numeric value indicative of aggression corresponding to an item violated when the structured document does not meet the flexibility requirements which define a numeric value indicative of aggression for every item; and

said rejecting means rejects the structured documents from the client after a total calculated by summing numeric values indicative of aggression included in the error information associated with the client becomes a prescribed value or greater.

12. The data entry restriction apparatus according to claim 10, wherein said flexibility check means discards the structured document entered when the structure of the structured document does not meet the flexibility requirements.

13. A computer-readable recording medium storing a data entry restriction program to determine whether to accept or reject entered structured documents, the data entry restriction program causing a computer to execute the steps of:

(a) comparing a structure of a structured document with previously defined flexibility requirements indicating allowable ranges for document structure;

(b) recording error information in association with a client who is a sender of the structured document when the structured document does not meet the flexibility requirements; and

(c) rejecting structured documents from the client after the error information associated with the client exceeds prescribed limits.