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Executive Summary

This guide details how key activities of application modernization – from ‘simple’ framework or database swap to refactoring and breaking monoliths to microservices, can be dramatically sped up by using software intelligence.

Learn about:

  • The five approaches to application modernization and transformation.
  • The most common Analysis and Action modernization motions.
  • Accelerating the common motions by leveraging software intelligence.

This guide is the result of distilling the experience of helping businesses, governments, consultancies, and integrators modernize complex, custom-built software applications.

Philippe GuerinCAST
Philippe Guerin

Senior Software Architect

Philippe Guerin is a Senior Software Architect at CAST and leads the team of CAST Solutions Architects. He is an expert in application modernization, architectural design, and software intelligence. Over the last 10 years Philippe has been helping businesses, government agencies, consultancies, integrators, and cloud vendors assess large IT organizations application landscapes and accelerate transformation efforts. You can contact him directly at p.guerin@castsoftware.com.

Accelerating Application Modernization

A practical guide explaining how application modernization can be de-risked and accelerated using automatically generated software intelligence (automated understanding of structure and dependencies), especially when legacy knowledge is limited.

Describe common modernization approaches (including refactoring after “lift and shift” to cloud) and why modernization stalls when teams lack reliable system understanding.

Explain how “software intelligence” accelerates modernization motions like dependency discovery, impact analysis, and planning with higher-confidence estimates.

Emphasize the need for visibility into multi-layer dependencies to speed up decoupling and reduce defects introduced during change.

Position CAST as software intelligence technology that reverse-engineers complex systems across mixed technologies to support safer modernization decisions.