We are analyzing about rule engine(preferably open source) which can process complex rules with multiple input conditions. There are many conditions and sub conditions. For example , if a student applies for a program in a university, the input conditions be like geograpghy, country, score, eligibility, interested programs, available seats etc. Can any one please suggest the best engine which can accept multiple attributes and process efficiently and quickly.
Currently, we are checking drools engine if its supports multiple attributes. Please help.