Architecture Modernization • Nick Tune & Eduardo da Sliva

Architecture modernization requires strong alignment between business objectives and technical changes - it’s not just about rebuilding systems with new tech

Key success factors include:

• Delivering small proof-of-concept wins early (3-6 months)
• Having dedicated Architecture Modernization Enabling Teams (AMETs)
• Building strong business cases and narratives
• Supporting teams through the mindset shift from feature work to modernization
• Breaking down migration into manageable increments

Organizations need proper support structures:

• Teams fully focused on modernization efforts
• Infrastructure and patterns for teams to build on
• Skills development and training
• Clear leadership support and investment

Common challenges to address:

• Team resistance and “business as usual” mindset
• Lack of experience with new technologies
• Data synchronization between old and new systems
• Team structure and Conway’s Law impacts
• Maintaining momentum after initial excitement

Practical approaches:

• Use Domain-Driven Design and event storming to understand current state
• Apply strangler pattern for incremental migration
• Map modernization to product roadmap
• Focus on high-value areas first
• Accept that not everything needs modernization
• Treat it as continuous improvement, not a one-time project

Modernization is a socio-technical transformation requiring changes to:

• Team structures and responsibilities
• Architecture and technical patterns
• Ways of working and processes
• Organizational mindset and culture