Rydia is a web-based, AJAX frontend to the JSurveyLib survey engine. It provides an easy way to configure surveys / questionnaires and display them on a website. Rydia will work with any web framework because it integrates like an AJAX widget.
Topsl (The Online Psychology Survey Language) is a programming language designed to make it easy to write sophisticated Web-based surveys. It features integrated support for longitudinal studies and arbitrary branching and looping on longitudinal data.
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A complete survey administration and data collection system. A fully featured replacement for Quancept, supporting CAPI, Web, CATI, PDA and Paper survey modes. Sonar is the reference implementation of JCaiF for CAPI and Web survey interviewing. Try it!
Exquisite is a survey generator that uses a simple domain-specific
language for specifying a survey. The generator creates a
specialised perl script for your survey. It allows you to use
perl code for specifying validators and error handling etc.