I am trying to build a questionaire type app. There are several questionaire forms, but less than 10 different ones. All questionaires follow the same form, with each question belonging to a certain topic (not the same topics across all questionaires), and each topic has a fixed number of questions, 5. In total, the number of questions is 70 per questionaire, so we are also thinking of splitting it up in e.g. 5 questions per “page” on the frontend.
For each response, I want to keep track of the median for each topic. The questions should be asked “mixed”, so that there could be questions from topic A open after several saves to the database. , In addition, I want to trackwhen all questions have been answered.
When there are enought answers to each questionaire, I want to also create a trend for each topic, so that we have a median score.
How would you go about designing this as a schema in Backendless? Is it wise to have each question as a separate entity, with topics as an entity and the questionaire as one, or is it a better approach to have all in one table or something in between?
Thanks for all help/answers 
