Strategic Architect Framework: Microsoft CSA Training Program

Decision Classification Cards

Module 08: Decision Latency & Architectural Leadership
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The classification reflex: Applying One-Way Door rigor to Two-Way Door decisions is the most common cause of decision latency in high-functioning technical organizations. The goal of this exercise is to build the classification reflex: classify quickly, spend your alignment capital on the decisions that deserve it, and move Two-Way Doors without ceremony. For each decision below, classify as One-Way or Two-Way Door, rate latency risk, and write the escalation criteria for the three highest-risk decisions.

Framework Reference

One-Way DoorTwo-Way Door
DefinitionEffectively irreversible within the life of the project. Consequences of a wrong decision persist for years.Reversible at reasonable cost. If it turns out to be wrong, you can change it within weeks or months.
ProcessBroad stakeholder consultation. Full ADR. Explicit consensus before commitment.Owner decides. Document briefly. Move fast.
Latency costHigh if under-analyzed. Low if given appropriate rigor the first time.High if over-analyzed. Every week of deliberation on a Two-Way Door is a week of unnecessary latency.
Common examplesVendor lock-in, data residency, security architecture foundations, network topology, primary cloud commitmentAPI naming conventions, development toolchain, internal service versioning, feature flag implementation, test framework

Classification Exercise: 10 Decisions

Work through each decision independently. Classify as One-Way or Two-Way Door. Rate latency risk (Low/Medium/High) if the decision is deferred one week.

#DecisionClassificationLatency Risk (1 week)Reasoning
1 Choose the primary cloud provider for a 5-year enterprise contract at $4M/year
2 Select the internal REST API naming convention (camelCase vs. snake_case)
3 Decide whether patient health data will be stored in-region or in a multi-region active-active configuration
4 Choose between GitHub Actions and Azure DevOps for the internal CI/CD pipeline
5 Adopt a proprietary vendor's event streaming format that would require all downstream consumers to use the vendor's SDK
6 Select the unit testing framework for a new internal microservice
7 Decide whether the network topology will be hub-and-spoke or flat for a 200-site retail deployment
8 Choose the logging verbosity level for a non-production environment
9 Commit to a zero-trust security architecture that will require replacing all legacy VPN infrastructure over 24 months
10 Decide whether the feature flag system will use an in-house solution or a commercial vendor (LaunchDarkly-equivalent)

Escalation Criteria: Top 3 Highest Latency Risk Decisions

For the three decisions you rated as highest latency risk, write the escalation criteria: the specific condition under which you would force a decision within 5 business days.

Decision # ___: Escalation Criteria

Person to escalate to
Escalation deadline
One-sentence urgency framing (no technical terms, no jargon)

Decision # ___: Escalation Criteria

Person to escalate to
Escalation deadline
One-sentence urgency framing (no technical terms, no jargon)

Decision # ___: Escalation Criteria

Person to escalate to
Escalation deadline
One-sentence urgency framing (no technical terms, no jargon)

Peer Comparison: Where Did You Disagree?

Compare your classifications with a peer. For any decision where you disagreed, document the disagreement and the reasoning used to resolve it.

Decision #Your classificationPeer classificationResolution reasoning
Which decisions were genuinely ambiguous? What made them ambiguous, and how did you resolve it?
Strategic Architect Framework: Module 08 Internal Use Only: Microsoft