Before starting to design a survey, it is important to know its purpose or aim. When you have clear ideas of your goals then it becomes easier to prepare the questions to garner the requisite information.
The next step would be to choose the target-group as well as the target-number. It is important to choose a ‘statistically significant’ target number to get appropriate results.
While formulating questions keep them simple and short. It is best not to combine questions as this can only confuse the respondents. Follow a logical sequence, starting with simple ones first. Avoid asking questions which are not relevant to your survey. Give distinct choices, so that the reader can select without any confusion.
If feasible, it is best to pre-test your survey with a sample audience to fine-tune it and make it more effective.