1. A method for determining a distribution pattern previously exhibited for a metric or a test, the method comprising: a computer receiving one or more keywords input by a user to describe the metric, or the test; the computer searching a plurality of documents for the one or more keywords; the computer identifying a first document that includes at least one of the one or more keywords based on the searching; the computer identifying a first distribution pattern specified in the first document for the metric or the test; the computer identifying other documents that include the one or more key words; and the computer determining and making an electronic record of a confidence level of the first distribution pattern based on the identifying the other documents.