Digital Logic Testing and Simulation
Chapter One
Introduction
1.1 INTRODUCTION
Things don't always work as intended. Some devices are manufactured incorrectly,
others break or wear out after extensive use. In order to determine if a device was
manufactured correctly, or if it continues to function as intended, it must be tested.
The test is an evaluation based on a set of requirements. Depending on the complexity
of the product, the test may be a mere perusal of the product to determine
whether it suits one's personal whims, or it could be a long, exhaustive checkout of a
complex system to ensure compliance with many performance and safety criteria.
Emphasis may be on speed of performance, accuracy, or reliability.
Consider the automobile. One purchaser may be concerned simply with color and
styling, another may be concerned with how fast the automobile accelerates, yet
another may be concerned solely with reliability records. The automobile manufacturer
must be concerned with two kinds of test. First, the design itself must be tested
for factors such as performance, reliability, and serv ... read full excerpt from Digital Logic Testing and Simulation ebook
