Text decision tree

Adapted from Chapter 24 of Decision Trees: Frameworks for Technology Choices. Sources reviewed 2026-11-11.

START: Match each control gap to its layer; validate the combined design.
Q1. Identity and access controls needed?
  Yes -> Evaluate Microsoft Entra ID. Identity and access management. [Q2]
  No -> Otherwise continue to threat detection. [Q2]
Q2. Detection across security domains?
  Yes -> Evaluate Microsoft Defender XDR. Correlate supported security signals. [Q3]
  No -> Otherwise continue to security log correlation. [Q3]
Q3. Broader security log correlation?
  Yes -> Evaluate Microsoft Sentinel. Security information and event management. [Q4]
  No -> Otherwise retain the existing validated log coverage. [Q4]
Q4. Response tasks need automation?
  Yes -> Evaluate Sentinel playbooks. Approve actions and permissions. [Q5]
  No -> Otherwise document the manual response workflow. [Q5]
Q5. Microsoft fits the actual estate?
  Yes -> Pilot the Microsoft shortlist. Measure coverage and operating effort. [END]
  No -> Otherwise include best-of-breed alternatives and test the integrations. [END]
END: Test coverage, connectors, permissions and operating cost before rollout.

AI-generated chapter illustration

Conceptual illustration for Choose Microsoft security layers

The illustration contrasts an integrated Microsoft stack and a stitched best-of-breed stack. Its miniature tree differs from the five control-gap gates. Phrases such as lower friction and slower response are illustrative vendor comparisons, not verified outcomes. Use the authored text and deterministic graph for routing; validate integration effort and performance in the actual estate.

The illustration was generated in BookWriter. Its visual arrangement is interpretive; use the explicit nodes and routes in the graph and text tree for the decision.

Primary references