data harmonization

Data harmonization is the process of combining information from different sources so it can be compared and analyzed consistently. It involves aligning formats, definitions, and units—such as converting dates to a common format or standardizing terminology—so that all data sets speak the same "language." This makes it possible to integrate diverse data smoothly, reduce errors, and draw accurate insights, especially when working with information gathered from various systems, studies, or organizations. Essentially, it ensures that when data is merged, it remains meaningful and reliable for decision-making.