I came across a question which says "Bathtub curve is applicable to Hardwar" True or False when I am going through some of the FAQ's documents related to testing.
Till now I did not hear the word "bathtub curve" so can anyone share their ideas regarding this and let me know what exactly it means.. and if this is a testing methodology for Hardware testing would any one tell me in details what exactly is this? and how it is related to Hardware?
It is a tool used to characterize the life cycle of a design for a product. Mostly associated with an accelerated life test, (ALT). Typically plotted on a chart with time vs. failures.
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It's not some new weird methodology. I did a web search and got 36 hits. If you picture a bathtub, high on both ends and a long low in the center this characterizes the life cycle, or a lot of failures early in life and a long non-failure area once the initial bugs are fixed, then increased failures near the end of it's usefulness.
Success is the ability to go from one failure to another with no loss of enthusiasm.
~ Winston Churchill ~
You are right, and to be more specific, it can be applied to "testing until the point of failure". Once the initial bugs are fixed (in the hardware) things should keep running until they wear out. I think that to answer the question you have to put it in context of where it applies, and how a part is subjected to failure (which may be a very long time for solid state components, a potentially shorter time for disk drives, etc.) to decide the MTBF expectations for any given installation.