In function point analysis, the number of complexity adjustment factors is

Answer: 14 complexity adjustment factors (these are the General System Characteristics).

How they are used: rate each of the 14 characteristics from 0 (no influence) to 5 (strong influence), sum the ratings, compute the Value Adjustment Factor (VAF), and apply it to the unadjusted function points.

1. Compute the sum of the 14 ratings (ΣFi).

2. Compute VAF = 0.65 + (ΣFi) / 100.

3. Compute Adjusted Function Points = Unadjusted Function Points × VAF.

The 14 General System Characteristics are:

1. Data communications

2. Distributed functions

3. Performance

4. Heavily used configuration

5. Transaction rate

6. On-line data entry

7. End-user efficiency

8. On-line update

9. Complex processing

10. Reusability

11. Installation ease

12. Operational ease

13. Multiple sites

14. Facilitate change

Brief example: if the sum of the 14 ratings is 30, then VAF = 0.65 + 30/100 = 0.95. If unadjusted function points = 200, adjusted function points = 200 × 0.95 = 190.