What component is needed to enable external systems to retrieve claim history from a Pega claims application?

To enable external systems to retrieve claim history from a Pega claims application, a service component is necessary. In the context of Pega, a service facilitates communication between the application and external systems by allowing those systems to interact with Pega through exposed endpoints.

Using a service, the claims application can define the specific operations or data retrieval mechanisms required by external systems, such as REST or SOAP services. This setup not only allows for the secure and structured exchange of claim history data but also adheres to the protocols and interfaces that external systems expect.

Other components, while useful in their own contexts, do not serve the same role as a service in this scenario. For example, a data page is primarily used for displaying and managing data within the application environment, but it is not directly involved in enabling external accessibility. A local data source pertains to the data management within Pega, reflecting data that's available internally rather than facilitating external access. Lastly, a connector is intended for connecting Pega to external data sources or systems for data input rather than serving as a direct means for external systems to query or retrieve information.