Being prepared is everything - so naturally this phase of the CRISP-DM model will take up a lot of your time. The data preparation process is extensive and tends to take approximately 80% of the project time. It covers all activities to construct the final dataset from the initial raw data. Data preparation tasks are likely to be performed multiple times and not in any prescribed order. Tasks include table, record and attribute selection as well as transformation and cleaning of data for modeling tools.
But all the effort is worth it, of course. Only a solid preparation allows for good results. See more in our video. because we just love data. and being prepared.