Like all components, EQs are rated and scored. Basically, an EQ is rated (Low, Average or High) like an EO, but assigned a value like and EI. The rating is based upon the total number of unique (combined unique input and out sides) data elements (DETs) and the file types referenced (FTRs) (combined unique input and output sides). DETs and FTRs were discussed in an earlier chapter. If the same FTR is used on both the input and output side, then it is counted only one time. If the same DET is used on both the input and output side, then it is only counted one time.
File Types Referenced (FTR) | Data Elements | ||
---|---|---|---|
1-5 | 6-19 | Greater than 19 | |
less than 2 | Low (3) | Low (3) | Average (4) |
2 or 3 | Low (3) | Average (4) | High (6) |
Greater than 3 | Average (4) | High (6) | High (6) |