What should be created to enable process managers to more easily query Change request completion times?

Creating a Database View is an effective approach to enable process managers to easily query Change request completion times. A Database View essentially provides a virtual table based on the result set of an SQL query. This can simplify data retrieval and allow users to focus on specific metrics, like completion times, without dealing with complex query logic or multiple tables.

By creating a view that specifically targets Change request data and organizes it in a readily accessible format, process managers can swiftly extract the information they need. This custom view can also include necessary filters, aggregations, or joins, making it much more user-friendly for querying completion times compared to accessing the raw tables directly.

The other options do not serve the purpose as effectively. For instance, creating a Data Source requires additional overhead in configuration and may not be tailored for specific queries like a Database View can be. Using a table source type might still require complex queries and doesn't encapsulate the data needed for streamlined reporting. Lastly, implementing a Data Dictionary focuses on providing metadata about the data but does not directly facilitate easier querying of specific data sets. Thus, a Database View stands out as the optimal solution for simplifying access to Change request completion times.