What method should a business analyst use to create a calculated field for SalesAmount in the Orders table?

Creating a calculated field for SalesAmount in the Orders table can be accomplished effectively by using a calculated field in the data manager. The approach involves defining the expression for SalesAmount as the product of UnitPrice and Quantity. This method is beneficial because it allows you to utilize Qlik's built-in capabilities for handling calculations within the data loading process.

By doing so, the calculated field is integrated directly into the data model, making it available for analysis and visualization throughout the Qlik Sense application. It ensures consistency and reliability in the data being presented, since the calculation is performed consistently across all relevant data in the application.

Other methods, such as editing a QVD file, may not be feasible or advisable since QVD files are effectively a snapshot of data and should not be routinely edited. Creating a master item would be more suitable for reusable calculations that do not need to be directly tied to a specific data source, while using data connections to pull from a different app is typically more complex and may not align with the immediate requirement of defining a field within the current data set. In summary, the most straightforward and effective method in this context is to create a calculated field in the data manager using the specified expression.