What API would you use to define a new dataset and its details?

To define a new dataset and its details within Adobe Experience Platform, the Catalog service API is the appropriate choice. This API is specifically designed to manage datasets in the platform, allowing users to create, update, and retrieve information about datasets. By utilizing the Catalog service API, you can effectively define the structure, schema, and attributes of a new dataset, ensuring that it is properly registered and managed within the Adobe Experience Platform.

The Catalog service API plays a crucial role in the overall data management strategy in Adobe Experience Platform, as it helps in organizing and structuring data in a way that can be easily accessed and utilized in various analyses and marketing efforts. This capability is essential for businesses that want to leverage their data assets systematically.

Other options, while related to data handling, serve different purposes. For instance, the Data mapping API focuses on mapping data from one format or structure to another, while the Data ingestion API is used primarily for bringing data into the platform from external sources. Lastly, the Metadata management API is concerned with managing metadata, which is crucial for understanding the context of datasets but does not directly facilitate the creation of new datasets. Thus, the Catalog service API is the most suitable for defining new datasets and their details.