9.1 Expert Systems What’s in the syllabus: Popular Examples → MYCIN (medical), DENDRAL (chemistry), XCON (computer configuration). Characteristics → rule-based, reasoning ability, explanation facility, domain-specific knowledge. Components → knowledge base, inference engine, user interface. Participants → domain experts, knowledge engineers, end-users, system developers. Capabilities → problem-solving, reasoning, explanation, prediction. Advantages → consistency, availability 24×7, handles complex problems. Limitations → lack of creativity, expensive to build, limited to defined knowledge. Applications → medicine, engineering, customer support, agriculture. Technology → rule-based systems, frames, semantic networks. Development → identify problem, knowledge acquisition, knowledge representation, testing & refinement. How can you explain in class: Begin with a simple definition: “An expert system is like putting a human expert’s brain into a computer.” Show a real-world case: MYCIN diagnosing infections, or modern-day medical AI assistants. Draw a simple diagram on the board: Knowledge Base + Inference Engine + User Interface. Connect to students: “Think of Google Maps suggesting a route — it’s like an expert system for navigation.” Quick discussion: “Can expert systems replace doctors or teachers? Or just assist them?”