Research challenges for argumentation

The first articles on argumentation in computer science appeared circa 20 years ago. Since then we have seen great advances, establishing a solid theoretical basis, a broad canvas of applications, and, most recently, some realistic implementations. The field has gone from infancy to maturity, and the initial questions that researchers posedA¢â‚¬â€ "how do we do this?", "what is it good for?" and "how do we implement itA¢â‚¬â„¢?"A¢â‚¬â€are mostly answered.