The Unit Command Climate Assessment and Survey System (UCCASS) is a PHP survey script for creating dynamic surveys. Supports unlimited questions and answers, branching logic, bar graph results with filtering, CSV export, templates, time limits and more.

Some of the features of UCCASS include:
Web-based installation
Smarty template engine and ADOdb database abstraction layer
Unlimited surveys, questions, and answers with public and private surveys and results
Answers can be large or small text areas, multiple choice with the ability to choose one or more answers, and matrix (or grid) type layouts and questions can be marked as required or optional
Dependencies allow questions to be hidden or required based upon answers to previous questions, creating the ability to have separate branches in the survey
Survey results shown as bar graphs with customizable images for each answer
Survey results filtered according to the results of any question (you can view the results of all the questions just for those users to answered a specific question or questions with a specific answer or answers)
Create a new survey from scratch or copy an existing survey so you don't have to recreate all of your work
Complete list of features can be found in the documentation.
Released under the Affero General Public License.