Techniques for creating and processing electronic forms that include at least one field that is configured to accept multimedia information as input. Techniques are provided for creating an electronic form comprising at least one field that is configured to accept multimedia information. Techniques are provided for specifying and associating a set of constraints (or predicates) with fields of a multimedia form, including specifying and associating one or more constraints with fields configured to accept multimedia information. Techniques for validating the electronic form based upon the constraints, if any, associated with the fields of the form. Various actions may be performed depending upon the results of the validation.