Fuzzy Logic

A relative ranking technique for describing characteristics. Often used in conjunction with items that contain uncertainty, like estimates. A general example is to take three buckets called small, medium, and large. Items are assigned t each bucket, and then the bucket values are used as stand-ins for a possible range of quantitative values. One common characteristic of fuzzy logic buckets is that the high end value from one bucket overlaps the low end value of the next bucket.