Aided Testing

It seems appropriate to close this design guide, which featured tiny details of design, with one designer s idea of how the first all - plastic - automobile may be assembled. 

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FDA approves the AIDS test on blood to protect patients from infected donors. 

Gardner E. Recording results of AIDS tests can be a balancing act. sidebar. Mod Healthcare 40, Nov. 3, 1989. 

It is not feasible to test every aspect of the programs. Tests must be directed toward critical features. Coordination between the customer and supplier can help to minimize superfluous tests. The trend toward incorporating the programming standard of lEC 61131-3 means that validation becomes easier for each new system for which a PLC is used. There are only so many devices a PLC will support, most of which will be common to each system. We have found that the use of generic descriptions of how to test a device and automatic generation of specific test sheets from a database saves a considerable amount of time when testing new systems. There are some software tools available, such as simulation software, that can aid testing. However, this software must be validated before use. 

Landay, A.L. and Ohlsson-Wilhelm, B.M. (1992). Use of flow cytometry to monitor HIV disease, In AIDS Testing Methodology and Management Issues. G.Schochetman and J.R.George, eds. (New York Springer-Verlag), pp. 123 142. 

Several attempts have been made to measure the heat of combustion of nickel carbonyl. The most satisfactory is that of Fischer et al. 46). They used benzoic acid as a combustion aid, tested the homh gases after combustion for traces of unbumed Ni(CO)4 CO, and analyzed the solid product... 

DESIGNING WITH PLASTICS AND COMPOSITES A HANDBOOK Computer-Aided Testing... 

Factory operations functions inclnde manufacturing cost control and estimation, process planning and control, work methods, and qnality control. With the evolution of computers in manufacturing, techniques used in today s factory operations include computer-aided process planning and computer-aided testing. 

A complete test of a computer has to cover all commands with all address and data combinations and all TOssible successions of these combinations. 200 different commands and 2 addresses and 2 data combinations lead to about lo test patterns. Assuming lOO tests per second (computer-aided), testing will take 320 years. 

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