Which statement about DFS classifications is true?

• A. Major or Minor and Permanent or Temporary.
• B. Minor and Temporary only
• C. Unrelated to design changes.
• D. Only personnel changes

Answer: (A)

DFS classifications evaluate both how significant a design change is and how long the change lasts. The system uses two dimensions: severity (Major or Minor) and duration (Permanent or Temporary). That means a change can be Major or Minor in impact, and it can be Permanent or Temporary in effect. So the true statement is that DFS classifications encompass both levels of significance and both durations.

This explains why the other ideas don’t fit. Some classifications would limit the scope to Minor and Temporary only, which leaves out Major changes and/or Permanent changes. Others imply it’s unrelated to design changes or apply only to personnel, which misses the core focus on design modification classification.