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1. You like the functionality provided by DIFFRACT because you primarily do:(please check all that apply):

2. How Often do you anticipate using DIFFRACT:

3. What other optical analysis/design/simulation software do you use?

4. Specify the type of optical system R & D in which you are presently involved:

5. In selecting a software package for optical system simulation, what are the important factors in your considerations [rank 1 (lowest) to 6 (highest)]:

6. What is your preferred mode of licensing of such utility software?

7. In your facility, how many engineers/scientists can benefit from DIFFRACT?

8. What type of computer/operating system do you use for analysis/design and simulation?

9. Which optical phenomena are you mostly interested in to investigate using DIFFRACT? (please check all that apply)

10. Please describe what you plan to achieve using DIFFRACT:

11. In the space provided below please include any comments you may have about DIFFRACT, your needs and your work, or about our questionnaire: