Using a Survey to Help Plan and Develop Your Document 
Surveys can be valuable tools for developing your document. We used our survey to answer many of our user and task analysis questions before planning content for different service manuals. When creating and using a survey, identify what information you need to know about your users, consider your options for mailing the surveys, plan a smooth processor gathering, tallying, and analyzing the data, and then remember to report back to your respondents. Ultimately, your findings can be incorporated into a recommendation report for your clients, as well as help you plan the content and layout for your document.
Lester, Susan M.J. and Lauren Y. Hansen. STC Proceedings (1996). Articles>Usability>Methods>Writing