Just started researching OptaPlanner. Loaded examples in Eclipse and got them running. I'm interested in extending the Nurse rostering example to work with a scheduling application I have written. I have some interesting constraints though that wanted to reach out to the community with to make sure they can be accomodated. My scheduling app has a hierachical entity setup with Organizations and child locations. An employee can be configured to work at multiple locations and are also assigned a "Primary" location which means they should be picked up on shifts at that location before an employee that does not have that location as primary. Also I have a priority group or ranking (1-10) which would be considered in sorting employees as well. Shifts are location, date/time and skill specific with a configured amount of resources needed. Shift Examples Location 1 = 2 nurses, (Monday Wednesay Friday), 7AM - 11PM Location 1 = 1 nurse, (Sunday,Tuesday,Thursday,Saturday), 7AM - 11PM Constraints for an employee Max Hours/Week: 0.00 Min Hours/Week: 0.00 Max Hours/Day: 0.00 Min Hours/Day: 0.00 Max Days/Week: 0.00 Max Consecutive Days: 0.00 Max Shifts/Day: 0.00 Max Shifts/Month: 2.00 Max Weekend Shifts/Month 0.00 Max Consecutive Shifts of Duration 0.00 consecutive 0.00 hr shifts -- View this message in context: http://drools.46999.n3.nabble.com/Scheduling-Application-and-Optaplanner-... Sent from the Drools: User forum mailing list archive at Nabble.com.