Interpolation of Factor Degree Description Points

DCIPS replaces CIPMS. Until all references can be updated, both terms may appear and are considered interchangeable

To provide maximum flexibility in structuring and valuing work, DCIPS utilizes the concept of interpolation. When classifying DCIPS positions, five separate FACTORS are evaluated. For each of the five FACTORS, Factor Degree Descriptions have been written as reference points to show a range of difficulty from low to high.

For a position to warrant the full point value of a Factor Degree level, it must meet the overall intent of the Factor Degree Description. When the overall intent of the Factor Degree Description is not met, or is exceeded, the point values allocated to that Factor Degree Description may be adjusted - or interpolated - in 5-point increments.

Most FACTORS have more than one defined sub-factor. To determine the value of the sub-factors of a particular Factor Degree level, the points for that level are divided by the number of sub-factors. As an example, "FACTOR A" has two sub-factors. At the 60-point Factor Degree levels the sub-factors equal 30 points each (60 divided by two). The next higher Factor Degree level for FACTOR A is worth 80 points so the sub-factors equal 40 points each. Each sub-factor is evaluated separately and the points added together to determine the overall point value of the FACTOR.

Interpolation is used when one of the sub-factors being evaluated meets the intent of one Factor Degree level while the second sub-factor meets the intent of the next higher Factor Degree level, or falls between the two Factor Degree level. Interpolation allows greater accuracy in the valuing of work performed.


>> Review of "FACTOR A shows that the work falls between the 60- and 80-pt Factor Degree Description levels.
Next Higher
60-point Factor Degree Description80-point Factor Degree Description
Sub-factor 1 = 30 points35 ptsSub-factor 1 = 40 points
Sub-factor 2 = 30 points35 ptsSub-factor 2 = 40 points

>>Evaluate each sub-factor separately. Determine if the sub-factor being evaluated meets the 30 point level, the 80 point level, or if it falls in between these two levels (i.e. 35 pts).
>>Add the points assigned to sub-factors 1 and 2 together to determine the total point value of the Factor Degree. (i.e., 30 points for sub-factor 1 + 40 points for sub-factor 2 = 70 points for FACTOR A)

Note: In situations where interpolation is used an evaluation statement must be prepared to explain the rationale for interpolating points.

Content last reviewed: 1/28/2005-YYW

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This page was last revised: 1/28/2005