JPH02110738A - Erroneous input detecting system - Google Patents

Abstract

PURPOSE:To eliminate the mismatching of the receiving condition due to a work program by preserving the information concerning a record in the form of definition information, referring to it at the time of preparing the work program, synthesizing it as a verifying circuit corresponding to the record and controlling unifiedly the verification of the inputted data record. CONSTITUTION:A defining part 1 inputs the information concerning the record such as the constitution of the record, the attribute of the item to constitute the record and the relation conditions between mutual items from a definition information input part 4, encodes it so as to be suitable for preservation and stores it into a definition information holding part 7 as definition information 7a. When a verifying circuit 8b based on the character of the record recorded in the definition information 7a is synthesized and the source program of a duty program is translated to an execution form program 8a, the description concerning the record input is detected and the verifying circuit 8b corresponding to the said record is incorporated into the execution form program 8a. Thus, the mismatching of the receiving condition due to the duty program does not occur.

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to data input in information processing, and in particular to an erroneous input detection method [conventional [Technology] Conventionally, detection of fraudulent data has been considered each time when creating each business program, such as performing necessary processing such as verifying data values after inputting records in business programs that process input records. There is a need to.

[Problem to be solved by the invention]

In the conventional detection method described above, it is necessary to create and incorporate verification of input data values for each business program, so a record with the same value may be accepted in one business program but incorrectly in another business program. It has the disadvantage that inconsistencies in the acceptance status are likely to occur, such as when it is considered as input.

Furthermore, when the design of a record is changed, it is necessary to find the locations where data values are verified in all business programs that use that record and make necessary modifications. Therefore, there is a risk that the amount of work will be large, and there is also the disadvantage that malfunctions of the business program are likely to occur due to oversight of the modified parts or omission of confirmation after modification.

[Means to solve the problem]

The erroneous input detection method of the present invention stores the properties of a record defined by the attributes of items constituting the record and the relationship conditions between items as definition information, and performs verification based on the properties of the record recorded in the definition information. When synthesizing circuits and translating a source program of a business program into an executable program, a description regarding record input is detected and a verification circuit corresponding to the corresponding record is incorporated into the executable program.

〔Example〕

Next, the present invention will be explained with reference to the drawings.

FIG. 1 is an overall configuration diagram of an embodiment of the present invention.

In the figure, the erroneous input detection method has a definition section 1, a translation section 2, and an execution section 3, and a definition information input section 4 and a source program input section 5 for providing information from external forces to these sections. The data input section 6 is further provided with a definition information holding section 7 and an executable program holding section 8 for exchanging information between them.

The definition section 1 inputs information related to the record, such as the structure of the record, the attributes of the items making up the record, and the relationship conditions between the items, from the definition information input section 4, encodes it to be suitable for storage, and stores the definition information as definition information 7a. It is stored in section 7.

Figure 2 is an explanatory diagram showing a simple example of a record. A record that is not named a "sales record" is composed of items such as "serial number,""salesdistinction," [customer code j, and [product code]. ing. Attributes of that item are shown below each item.
It is shown in a form that conforms to the notation of the 0BOL language.

FIG. 3 is an explanatory diagram in which the record shown in FIG. 2 is described in the COBOL language.

FIG. 4 is an explanatory diagram showing an example of inputting information regarding a record when the definition unit 1 defines the record shown in FIG. 2. Item name and attribute information for each item.

and value ranges, and the relationship conditions between items are specified as conditional expressions. In a conditional expression, a description that starts with "@" indicates a function call. Complex conditions that cannot be described here, conditions that are commonly quoted in multiple records, items, etc. are defined separately as functions, and then Indicates that a function is to be called.

FIG. 5 is an explanatory diagram showing an example of inputting information regarding conditional expressions, showing a list of the conditional expressions input in FIG. 4, and the evaluation order can be changed taking evaluation efficiency into consideration. Also,
It is possible to add compound conditions that are not dependent on a single item. ``@Sell Check'' in order 9 and ``@Purchase Check'' in order 10 were added later.

The translation unit 2 translates the source program of the business program input from the source program input unit 5, converts it into an executable format, and stores it in the executable program storage unit 8 as an executable program 8a. When translating the source
When a description regarding record input is found on the program, a verification circuit 8b is synthesized by referring to the definition information 7a regarding the corresponding record, and it is incorporated into the executable program 8a.

The verification circuit 8b is a program that evaluates the conditional expressions recorded in the definition information 7a in a specified order, and “accepts” if all the conditional expressions are satisfied, and “rejects” if even one is not satisfied. It's logic. FIG. 6 shows a flowchart of an example of a verification circuit in accordance with the examples of FIGS. 4 and 5 above.

The contents of each judgment box in FIG. 12(a) are shown in FIG. 2(b).

The execution unit 3 executes the executable program 8a stored in the executable program holding unit 8. The executable program 8a started to be executed by the execution unit 3 is sent to the data input unit 6.
The data value is verified by the verification circuit 8b to detect erroneous input. In other words, if the data is "accepted" by the verification circuit 8b, it is correct data, and if it is "rejected".
If so, the data is incorrect.

〔Effect of the invention〕

As explained above, the present invention saves information about records in the form of definition information, refers to it when creating a business program, and synthesizes a verification circuit corresponding to the record. Therefore, verification of input data records can be performed centrally. can be managed.

As a result, inconsistencies in acceptance status due to business programs will no longer occur. In addition, regarding changes to records, there is an effect that business programs can be reconfigured by retranslating them from the source program instead of individually modifying all business programs.

1... Definition part, 2... Translation part, 3... Execution part, 4
... Definition information input section, 5... Source program input section, 6... Data input section, 7... Definition information holding section, 7a... Definition information, 8... Executable program holding section Section 8a... Executable program, 8b... Verification circuit.

Claims (1)

[Claims] The properties of the record defined by the attributes of the items that make up the record and the relationship conditions between the items are saved as definition information, a verification circuit is synthesized based on the properties of the record recorded in the definition information, and the source of the business program is An erroneous input detection method characterized in that when a program is translated into an executable program, a description regarding record input is detected and a verification circuit corresponding to the corresponding record is incorporated into the executable program.