§ T3Systems of Record · topic
A business rarely runs on one system. It runs on an ERP, a CRM, a warehouse tool, a payroll provider and a set of spreadsheets that hold everything in between, all exchanging data with varying reliability.
Articles in this topic are for the people who answer for that landscape: how data should flow between systems, which system owns which record, and how to replace an old system while the business keeps running.
Most ERP integration problems are not connector problems. They are ownership problems (two systems both think they own the customer) and failure problems (nobody notices the order that never arrived). This is how to design for both.
A decision framework for legacy system modernization: assess each capability, choose keep, wrap, replace or rebuild, then migrate data and cut over in phases.
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