This article throws light upon the three parameters for the evaluation of internal control system. The parameters are: 1. Administrative Controls 2. System Development Controls 3. Procedural Controls.

Internal Control System Evaluation: Parameter # 1. Administrative Controls:

(A) Division of responsibilities—between the sections like:

(a) Development,

(b) Data preparation,

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(c) Computer operation,

(d) File library, and

(c) Control.

(B) Control over Computer Operators—by the use of:

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(a) Administrative procedure manuals,

(b) Work schedules and

(c) Rotation of duties, eta.

(C) File Control—in respect of issue of programmes and documentation.

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File Identification Procedures—by using:

(a) Visible reference numbers,

(b) Protection rings, and

(c) Header label checks on set-up, etc.

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(d) File Reconstruction Procedures.

(e) Fire Precaution and Stand-by Arrangement.

Internal Control System Evaluation: Parameter # 2. System Development Controls:

(A) Standard Procedure and Documentation—in respect of:

(a) Flow charts and Block diagrams,

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(b) Input and output data description,

(c) File record layouts,

(d) Output distribution, etc.

(B) System and Programme Test—by means of:

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(a) Processing the test data,

(b) Pilot running,

(c) Desk checking,

(d) Processing with test data, etc.

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(C) File Conversion—that is, checking the contents of Master files.

(D) Acceptance and Authorisation Procedure at the following stages in development:

(a) Completion of outline system report,

(b) Completion of system specification,

(c) Completion of programme and systems testing,

(d) Accepting new system into operational use.

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(E) Systems and Programme Amendments—to ensure that all changes are brought to the knowledge of all concerned, including user department.

Internal Control System Evaluation: Parameter # 3. Procedural Controls:

(A) Input Controls:

Establishment of Control over:

(i) Procedures,

(ii) Sequence checks, and

(iii) Data fields that contain significant reference data (for example, check digit verification and matching with master file records).

(B) Input Controls:

Verification of Conversion to ensure correction of all errors.

(C) Input Control:

Authorisation of Input.

(D) Processing Controls:

To ensure that all rejections are definitely and promptly reprocessed.

(E) Output Controls:

General—to ensure that the print-outs contain sufficient informa­tion to—(a) Trace out source documents and (b) Verify computer-generated calculations and totals. This is designed to ascertain whether an ‘audit trail’ exists.

(F) Output Controls:

Related to Input—to ensure that the data printed out are complete and accurate.

(G) Output Controls:

Exception Reports

(H) Output Controls:

Distribution of Output—to ensure that the user department has received all print-outs intact.

(I) Master File Controls:

Amendments of standing data: The system should ensure that all amendments are processed by—control totals and retention of copies.

(J) Master File Controls:

Maintenance of Standing data—The system should verify the standing data by (a) Print-outs of individual items for checking with external information, and (b) Print-outs of totals for reconciliation either independently or with computer-established records of totals.

(K) Master File Controls:

Maintenance of Transaction data—the system should verify the transaction data on the file on a total basis by Print-outs of totals for reconciliation either independently or with computer established records of totals.