AD082 – Event-Driven Architecture with Apache Kafka and Red Hat OpenShift Application Services Technical Overview — Lesson 4: Use-Case Selection, Trade-offs, Governance, Adoption Risks, and Roadmap

Learning Objectives

• Operate, troubleshoot, document, and improve use-case selection, architecture trade-offs, and governance.
• Apply operational risks and adoption roadmap while preserving reviewable technical evidence.
• Recognize and correct the risk where the technical fix is successful but monitoring, rollback, ownership, or handover remains incomplete.

Detailed Topics

• use-case selection: apply the concept to an architecture team evaluating event-driven integration for loosely coupled digital services, record the relevant settings or decisions, and explain the operational consequence.
• architecture trade-offs: apply the concept to an architecture team evaluating event-driven integration for loosely coupled digital services, record the relevant settings or decisions, and explain the operational consequence.
• governance: apply the concept to an architecture team evaluating event-driven integration for loosely coupled digital services, record the relevant settings or decisions, and explain the operational consequence.
• operational risks: apply the concept to an architecture team evaluating event-driven integration for loosely coupled digital services, record the relevant settings or decisions, and explain the operational consequence.
• adoption roadmap: apply the concept to an architecture team evaluating event-driven integration for loosely coupled digital services, record the relevant settings or decisions, and explain the operational consequence.

Instructor Demonstration

The instructor demonstrates use-case selection, trade-offs, governance, adoption risks, and roadmap by tracing the relevant architecture, commands, configuration, messages, and evidence. The walkthrough highlights how the technical fix is successful but monitoring, rollback, ownership, or handover remains incomplete and shows how to isolate the cause without masking dependent issues.

Hands-On Exercise

Run an operational review and produce support-ready evidence for Use-Case Selection, Trade-offs, Governance, Adoption Risks, and Roadmap. Add verified outcomes to the event-driven architecture brief, service interaction map, technology decision record, and adoption roadmap.

1. Confirm the scope, versions, access, dependencies, and success criteria.
2. Perform the workflow while recording commands, settings, output, and platform events.
3. Test one expected case and one controlled exception specific to this lesson.
4. Retest the correction and document ownership, rollback, and follow-up actions.

Scenario Analysis

• Identify which dependency most strongly influences use-case selection in the stated scenario.
• Compare two approaches for operational risks and explain the security, reliability, and support trade-offs.
• Decide what evidence must be retained in the event-driven architecture brief, service interaction map, technology decision record, and adoption roadmap before operational acceptance.

Troubleshooting Guidance

Begin with the first observable difference from the expected result. Check monitoring, troubleshooting, rollback, ownership, and handover separately, then correlate logs, events, commands, and configuration history. Do not accept the initial assumption that the technical fix is successful but monitoring, rollback, ownership, or handover remains incomplete; confirm the cause with a reproducible retest.

Validation Checklist

• The required monitoring, troubleshooting, rollback, ownership, and handover were checked and recorded.
• The normal path and a course-specific exception were tested.
• The event-driven architecture brief, service interaction map, technology decision record, and adoption roadmap links conclusions to commands, configuration, logs, or other objective evidence.
• Corrective actions, rollback steps, ownership, and handover notes are complete.

Lesson Outcome

Learners can apply Use-Case Selection, Trade-offs, Governance, Adoption Risks, and Roadmap, explain the observed Red Hat platform behavior, and support the result with a reviewable event-driven architecture brief, service interaction map, technology decision record, and adoption roadmap.