References: Information Systems Architecture

1. Enterprise architecture - Wikipedia - Comprehensive overview of EA frameworks, methodologies, and the role of the enterprise architect. Anchors the chapter's EA framing.

2. Multitier architecture - Wikipedia - Detailed coverage of three-tier and n-tier architectures with diagrams and tradeoffs. Directly supports the three-tier architecture MicroSim.

3. Microservices - Wikipedia - Definition, history, and tradeoffs of microservice architecture compared with monoliths and SOA. Foundation for the modern architecture section.

4. Enterprise Architecture As Strategy - Jeanne W. Ross, Peter Weill, and David C. Robertson - Harvard Business Review Press - Defines the operating model and business architecture concepts that anchor every modern EA effort; a staple reading for IS architecture students.

5. Building Microservices (2nd Edition) - Sam Newman - O'Reilly - Authoritative practitioner guide to microservices design, deployment, and the integration patterns introduced in this chapter.

6. TOGAF Standard - The Open Group - Official documentation for the TOGAF enterprise architecture framework referenced in the chapter, including the Architecture Development Method (ADM).

7. Microservices on AWS - Amazon Web Services - Cloud-vendor view of microservice patterns, API gateways, and service meshes. Concrete examples that complement the textbook treatment.

8. Enterprise Integration Patterns - Gregor Hohpe - Companion site to the canonical EIP book; catalogs messaging and integration patterns referenced in this chapter.

9. API Design Best Practices - Microsoft Learn - Practical guide to designing the REST APIs that connect modern IS components. Reinforces the API-economy section.

10. Zachman Framework - Zachman International - The originator's official site for the Zachman EA framework, including its 6x6 matrix structure. Useful for comparing EA frameworks.