The pattern-recognition method.
The pattern-recognition method,according to Balla,
"involves reducing a difficult problem into something that is known or recognized."
" Knowing exactly what is recognized as useful data and what is extraneous is usually attributed to the clinician's experience.
The Table illustrates the exhaustive set of data a clinician may collect on the
patient with buttock and posterior thigh pain.
An experienced clinician may note a few key pieces of information that represent a pattern.
Infomation is collected, and very early in the examination a pattern is recognized