need a form designer. Drag and drop elements/fields and set properties, validations, size. Properties include setting the table name/column name for element and saving upon submitting. At front end, when opening a page with formid in query-string, elements are loaded for that form with properties and validations applied.
see http://mashable.com/2012/02/16/web-form-builders/ for ideas.
Web interface, aspx page with vb.net code.