Final answer:
No, it is not sufficient to test the product of a workflow only at the end. Testing throughout the workflow is recommended to ensure early detection and resolution of issues.
Step-by-step explanation:
No, it is not sufficient to test the product of a workflow only at the end of that workflow. Testing at the end of the workflow is known as the waterfall model, where testing occurs after all development work is completed. However, this approach can lead to several issues, such as bugs being discovered late in the process and potential rework that may be needed. It is recommended to adopt an agile approach to software development, where testing occurs throughout the workflow, ensuring early detection and resolution of issues.