Description: Data transformation in GraphQL operations refers to the process by which data is modified, structured, or adapted to be compatible with the queries and mutations defined in a GraphQL schema. This process is essential to ensure that the data sent and received between the client and server is accurate and in the appropriate format. In GraphQL, data is organized in a graph, allowing developers to specify exactly what information they need, thus avoiding unnecessary data overload. Data transformation may include converting data types, normalizing data structures, and applying specific filters or transformations to meet query requirements. Additionally, this process may involve integrating data from multiple sources, enabling developers to combine information from different services into a single query. The ability to efficiently transform data is crucial for the performance and scalability of applications using GraphQL, as it optimizes responses and enhances user experience by reducing load times and the amount of data transferred.