The CRISP-DM methodology considers the analytical activities as a cyclical set of phases to be repeated until a satisfactory result is obtained. Not surprisingly then, Crisp-DM methodology phases are usually represented as a circle going from business understanding to the final deployment:
![](https://static.packt-cdn.com/products/9781787124462/graphics/assets/eab0e67c-4075-4b1a-af0f-37f6c5c52260.png)
As we can see within the diagram, the cycle is composed of six phases:
- Business understanding
- Data understanding
- Data preparation
- Modeling
- Evaluation
- Deployment
This is the greater abstraction level of the Crisp-DM methodology, meaning one that can apply, with no exception, to all data mining problems. Three more specific layers are then conceived as a conjunction between the general model and the specific data mining project:
- Generic tasks
- Specialized tasks
- Process instances
All of the components of every level are mapped to one...