The Importance of Unified Classification Schemes in Data Analysis

The data that we had access to had been nice and clean for us. It was it was in a kind of JSON format, which means that someone else had done the kind of difficult pre-processing. We use the unified categorization scheme. This scheme is called OCC, 1990 DD by Dornan Otor. And we sort of use that as a unified thing and that contains about roughly 330 different job categories.