Ripple Effect Analysis

Ripple Effect Analysis: Tracing a One-Line Change Through a Codebase

IN-COM October 7, 2026 , , ,

The commit message said “extend customer balance field precision.” The change was one line in a COBOL copybook: PIC S9(9)V99...

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Entity Relationship Diagrams from Legacy Database Schemas

Entity Relationship Diagrams from Legacy Database Schemas

IN-COM October 5, 2026 , , ,

Connect SchemaSpy to a modern PostgreSQL database and it produces a complete ERD in minutes: every table, every column, every...

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Dependency Wheel Diagrams

Dependency Wheel Diagrams for Enterprise Application Portfolios

IN-COM October 1, 2026 , , , , ,

The architecture review board has a network graph. It was built from the CMDB eighteen months ago, manually updated three...

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Big Bang vs. Incremental Modernization

Big Bang vs. Incremental Modernization: A Decision Framework

IN-COM September 28, 2026 , , , , , ,

Every consultant will tell you incremental is safer. They are right, and they are also telling you what is always...

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Dual-Run Strategies for Legacy Systems

Dual-Run Strategies: Running Legacy and Modern Systems in Parallel

IN-COM September 23, 2026 , , , , ,

61% of migration projects exceed planned timelines by 40 to 100%. The most common cause is not technical complexity. It...

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GitOps for Mainframe

GitOps for Mainframe: Bringing Modern Version Control to z/OS

IN-COM September 16, 2026 , , ,

The new developer joins the mainframe team. She has spent five years writing Java microservices with Git, GitHub, pull requests,...

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