This site, following the spirit of the Second International Timetabling Competition (ITC-2007), provides a portfolio of formulations for the Curriculum-Based Course Timetabling problem as defined in [De Cesco, Di Gaspero and Schaerf, accepted to PATAT-2008]. All problem instances downloadable from this site are based on real data from various universities.

In this site, you can:

• Download instances (both in text-only and XML format) and solutions contributed from the research community.
• Validate your solutions online or download the source code of a solution validator.
• Upon registration, you can also insert your solutions, lower bounds, instances, and links of interest for the community.

The Scheduling and Timetabling Research Group