Enterprise Architectures play an important role supporting business transformation initiatives. Enterprise Architecture Governance (EAG) provides a structure for defining relevant strategies and compliance processes. This Level 3 Communications case study presents a detailed framework composed of three essential components of EAG: 1) Organizational Accountability must be clearly defi ned for all EAG aspects, and executive sponsorship is essential. Level 3 formed an executive steering committee with broad representation, preventing EAG from becoming an IT-only initiative. 2) Strategy Defi nition provides the roadmap for business transformation initiatives. Architectural guiding principles defi ne values and offer input into strategies, end states define where the company is going, and roadmaps document how to get there from. 3) Compliance Processes ensure that development initiatives are in alignment with the strategic direction. Level 3 has created a framework that gives each development initiative an architecture rating that indicates its compliance level.

4. Organization

6. Strategy and Architecture

7. The Scope of EAG: The Enterprise! Corporate Strategy defines what the company will be and how it will compete Competitive advantages Wholesaler / Retailer Low Cost / High End Domestic / International Centralized / Regional Control Corporate Strategy Product Strategy Product Strategy defines what the company sells and how it sells it Product lines and features Market and industry analysis Differentiation Volume Functional Strategies define how to operate the company, based on Corporate and Product inputs Guiding Principles End State Architectures & Roadmaps Functional Alignment Functional Strategies Process Network IT Tactical Plans & Execution Implementation processes and tracking mechanisms Investment Prioritization Compliance process execution and reporting

9. Architecture Alignment by Layer IT Network Layer 0 Layer 1 Layer 2 Layer 3 Domain Framework Domain Strategy Functional Flows Product The EAG Deliverables are aligned by layer across Product, Process, IT & Network Process

11. Example: Layer 1 Application Architecture Portals / Gateways Sales & Marketing Customer Interaction Finance Business Intelligence Product Mgmt Corporate Service Assurance Service Delivery Channel Mgmt Leads Mgmt Sales Force Mgmt Campaign Mgmt Quoting Customer Risk Mgmt Billing Accounting Revenue Assurance Mediation & Rating Vendor Billing Reconciliation Contact Mgmt Customer Mgmt Order Entry Trouble Tracking Order Mgmt Service Image Workforce Mgmt Capacity Planning Inventory Assign & Design Vendor Order Mgmt Provisioning Interconnection Activation Mgmt Fault Mgmt Usage Data Collection Network / Element Mgmt Trouble Mgmt Service Level Mgmt Performance Mgmt Testing & Diagnostics Corporate Data Warehouse Decision Support Systems Reporting Asset Mgmt Human Resources Tax & Regulatory Legal Product Catalog Portal B2B Gateway Corp Governance Document Mgmt

13. Compliance