The rule-based approach is a very reliable engine which provides your application with high accuracy. When you compare the RB approach with ML approaches or deep learning approaches, you will find the following points:
- For the RB approach, you need a domain expert, while for the ML approach, or for the deep learning approach, you don't need a domain expert
- The RB system doesn't need a large amount of data, whereas ML and deep learning need a very large amount of data
- For the RB system, you need to find patterns manually, whereas ML and deep learning techniques find patterns on your behalf as per the data and input features
- The RB system is often a good approach for developing the first cut of your end product, which is still popular in practice