Identify the goal of the KDD process from the customer’s perspective.
Understand application domains involved and the knowledge that's required
Select a target data set or subset of data samples on which discovery is be performed.
Cleanse and preprocess data by deciding strategies to handle missing fields and alter the data as per the requirements.
Simplify the data sets by removing unwanted variables. Then, analyze useful features that can be used to represent the data, depending on the goal or task.
Match KDD goals with data mining methods to suggest hidden patterns.
Choose data mining algorithms to discover hidden patterns. This process includes deciding which models and parameters might be appropriate for the overall KDD process.
Search for patterns of interest in a particular representational form, which include classification rules or trees, regression and clustering.
Interpret essential knowledge from the mined patterns.
Use the knowledge and incorporate it into another system for further action.
Document it and make reports for interested parties.