I need a lightweight rules engine. We have around 50 rules right now, but the rules keep changing frequently.
We could use Drools, but I figure that would be overkill. Are there any lighter, F/OSS implementations?
I am aware of the other similar question, but that is 2 years old and does not have a good answer. (and I do not have enough rep to comment on that question)
There's also nools, give it a try.