2.1    

Figure 2.1: Experts system

Discuss the working mechanism of an expert system as illustrated in the diagram.

i.         The process of receiving input and producing output.

1. The role of the inference engine (rules engine) in reasoning and decision-making.
2. A comparison between forward chaining and backward chaining as inference methods.
3. An example where a rule-based approach helps in solving a complex problem (e.g., troubleshooting a technical issue). (20 Marks)