A. Use out-of-the-box Adobe Experience Manager Workflow steps and configure them through the Workflow console to handle all metadata for asset processing, using conditions in the Workflow.
B. Write custom workflow process steps in Java to handle specific metadata conditions and integrate external services, using the Workflow API to manage dynamic branching logic.
C. Implement a content fragment model to pre-define asset metadata, using Workflows only for publishing the fragments after external service calls are completed.