What type of service should you publish if clients need to run a model you created?

Publishing a geoprocessing service is the most suitable option when clients need to run a model you created. Geoprocessing services allow users to execute pre-defined models or scripts that can perform tasks such as analysis or data manipulation within the GIS environment. These services make complex geospatial processing tasks accessible to users without requiring them to have in-depth knowledge of the underlying model or data structures.

When a model is published as a geoprocessing service, it can be designed to accept input parameters from clients, process data accordingly, and return results. This functionality is vital in scenarios where tasks need to be automated or standardized across different users or applications.

In contrast, while image services primarily serve raster data and images for visualization and does not facilitate direct model execution, a WFS (Web Feature Service) provides access to geospatial features without any analytical capabilities. A geodata service offers data management and versioning functionalities but is not meant for executing models or geoprocessing tasks. Therefore, choosing a geoprocessing service aligns perfectly with the need to allow clients to run pre-built models efficiently.