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Automatic Test Sequencing of Stored Diagnostic Programs Under Computer Control

IP.com Disclosure Number: IPCOM000045134D
Original Publication Date: 1983-Feb-01
Included in the Prior Art Database: 2005-Feb-06
Document File: 3 page(s) / 16K

Publishing Venue

IBM

Related People

Serpa, H: AUTHOR

Abstract

This article describes a software method for testing a product, or a group of products, by automatically sequencing test programs appropriate for the testing of the product. The selection of test programs for execution is based upon matching test programs to the product by: product type, product features, and product engineering change (E/C) level.

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Automatic Test Sequencing of Stored Diagnostic Programs Under Computer Control

This article describes a software method for testing a product, or a group of products, by automatically sequencing test programs appropriate for the testing of the product. The selection of test programs for execution is based upon matching test programs to the product by: product type, product features, and product engineering change (E/C) level.

A test equipment operator controls the testing of one or several units at the same time by connecting the unit(s) under test to a computer controlled tester, initiating the automatic test sequence, and, when the test is finished, disconnecting the unit under test.

New test programs provided by a test program designer designate the engineering change level at which the new program becomes active. When a unit is logged on at that engineering change level or higher, this new test program will automatically be selected for execution instead of the previous test at a lower engineering change level.

The testing method herein described utilizes (1) Log-On Product Data, (2) a Test Operations Catalog, (3) a Program Control Number, (4) a Test Program Catalog, and (5) Automatic Test Sequencing Control Software.

(1) The Log-On Product Data (LPD) The unit under test (UUT) is described by the operator (Test Technician) at the time the operator signs onto the test system. This sign-on occurs at the start of the work shift or after the testing of one UUT has been completed and before testing of the next UUT is to start. The Log-On Product Data (LPD) contains the machine type, base number, engineering change level number (E/C number), and feature list (this list is entered as a bit significant code used to represent the special or optional features) of the UUT. The other parts of the Log-On provide operator and shift identification and protect the security of the system through a password unique to the operator.

(2) The Test Operations Catalog (TOC) As each new UUT is first logged onto the test system, a Test Operations Catalog (TOC) record is generated for that UUT. This record contains the Log-On Product Data and the Program Control Number (PC#) of the last diagnostic test program to execute successfully. Each time a Log-On occurs, the TOC is first searched to see if a record exists for the UUT identified by the Log-On Product Data. If an existing record is found, then the starting point of test is changed from the start of the auto-test sequence list (the Test Program Catalog) to the one immediately following the PC stored in the TOC as the last diagnostic test program to be executed successfully.

(3) The Program Control Number (PC#) The Program Control Number (PC#) is a five digit number assigned by the designer of the diagnostic test program at the time the program is stored into the Test Program Catalog (auto-test sequence list). The PC specifies where in the auto test sequence the test program will be executed. It will...