McKinsey's Enterprise Architecture Playbook: Balancing Stability and Agility in Governance

1. Architecture Maintenance and Updates

McKinsey emphasizes that architecture maintenance is a continuous process driven by four design inputs:

Business Requirements: Understanding and analyzing customer and market needs to guide architectural evolution.

Enterprise Strategic Planning: Translating the organization's long-term vision and goals into concrete architectural requirements.

New Technology Trends: Tracking the latest technological developments to ensure the architecture can support future innovation.

Current Architecture: Regularly reviewing the existing architecture to identify improvement and update opportunities.

The target architecture spans six domains:

Business Process Architecture: Aligning business processes with enterprise strategy and requirements.

Business Capability Architecture: Defining key business capabilities and how technology supports them.

Application Architecture: Determining the application landscape to support business processes and capabilities.

Integration Architecture: Designing system integration patterns for seamless data and process connectivity.

Data Architecture: Managing enterprise data structures to ensure accuracy and availability.

Infrastructure Architecture: Designing hardware and network foundations that support the organization's technology needs.

2. Architecture Design Implementation in Projects

To enforce architecture governance at the project level, McKinsey defines a set of shared assets and practices:

Architecture Reference Model: A common framework guiding project teams in understanding and implementing enterprise architecture.

Domain-Specific Architectures: Standardized design and implementation guides for business process, application, data, business capability, integration, and infrastructure architectures.

Architecture Standards: Established norms and best practices for enterprise architecture.

EA Knowledge Base: A centralized repository of architecture documents and resources.

EA Standard Glossary: A shared terminology set ensuring consistent communication across teams.

EA Tools: Selected tools supporting architecture design and evaluation.

Architecture Assessment: Regular evaluation of project architecture implementation against enterprise requirements.

Project Architecture Documentation: Recording architectural designs and decisions per project.

Architecture Compliance Metrics: Performance indicators monitoring architecture implementation.

Architecture Assessment Methods: Defined processes and methods for evaluating architecture effectiveness.

3. Architecture Roadmap Implementation in Projects

Transformation planning bridges current and target states through three layered roadmaps:

Architecture Transformation Planning: A sequenced plan guiding the enterprise from its current state to the target architecture.

Business Architecture Roadmap: Describes the transition path for business architecture.

Application Architecture Roadmap: Plans application evolution and migration strategies.

Technology Architecture Roadmap: Sets upgrade and replacement schedules for technology platforms.

Reference: "Circulated McKinsey Elements Diagram"