Fig. 4.

The different stages of data standardisation and integration from different types of data across a variety of platforms and providers within the field of hearing health research. There are two main steps:1. Step 1: generate local view of the uploaded CSV files for the sites to inspect and ensures it has been possible to load data into the database2. Step 2: updates and merges site’s existing data with newly ingested data, ensuring there are valid foreign keys (a system of connecting different tables of data), duplicates have been removed and deletions and updates have been processed to obtain the latest local version of a site’s data