Patrick Grässle

“Full of valuable insights and practical advice not only for people new to the topic, but also for seasoned experts.”

Mike Bennett

“… explains rules in clear, accessible language, along with their place in the landscape of business concept modeling and ontologies.”

Silvie Spreeuwenberg

“Every analyst writing a definition, constraint, rule, or guideline should learn from Ron’s guidance. The result is easy to understand and follow.”

Kim Schilling

“… lighthearted and fun, but still potent. Why has this crucial message not been getting through to people?!”