To be able to decipher competitive data collected, you must use a clean product reference system. To obtain the most representative vision of the market possible, you need to collect and unify the Data from the different sources, whether online or offline. Problem: the nomenclature, description and characteristics of a same product generally vary from one source to another, to the point of making the analysis inaccurate, even impossible (duplicate data, holes in the data, etc.).
To address this difficulty due to the diversity of collection points, a data matching phase must be integrated upstream of any analysis. In practice, this step will link the price collected from a reference found on a source (site A or price list A), with the price of this same reference on another source (site B or price list B). The reference must also be identified in the certified product database to guarantee the relevance of the prices that are now attached to it.