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Once you build models, you must pick the one that best solves the business problem. Oracle Data Miner includes model viewers that let you explore the models that you have created. You can test models using lift charts and other test metrics calculated by Oracle Data Miner.
If none of the models is satisfactory, you may have to revisit previous steps in the process, to ensure that you selected the proper data, and to build more models. You may even have to revisit the problem statement. Oracle Data Miner makes it easy to define new data sets and build new models.
Once you select the best model, you may be able to tune it further to get an improves solution. Oracle Data Miner provides tools such as the Receiver Operating Characteristic curve for this purpose.