Pierre Berlandier published the results of “a candid, side-by-side experimental comparison” of two approaches to decision management: rule-based and LLM-based. “We used a simple decision scenario as a test case: determining whether a traveler qualifies for access to the fictitious Big Blue airport lounges. We defined a set of simplified lounge access rules, implemented them both as formal business rules and as native, natural language instructions within an agentic platform, and evaluated their behavior.” Read the results here. A complete solution with IBM ODM is included.