ETL Tools Fail for Data Migration

This title was summarized by AI from the post below.

𝗧𝗵𝗲 𝗠𝗶𝗴𝗿𝗮𝘁𝗶𝗼𝗻 𝗧𝗼𝗼𝗹 𝗬𝗼𝘂 𝗔𝗹𝗿𝗲𝗮𝗱𝘆 𝗢𝘄𝗻 𝗜𝘀 𝘁𝗵𝗲 𝗘𝘅𝗽𝗲𝗻𝘀𝗶𝘃𝗲 𝗢𝗻𝗲 When a migration project starts, many ISVs make the same decision. “We already have an ETL tool. Let’s just use that.” Platforms like Talend or Informatica PowerCenter are already part of the stack. They move data and transform it. So using them for migrations feels like the logical choice. No new tooling. No procurement process. No additional budget. But the real cost of migration is rarely the software. It’s the engineering time. Once the project begins, reality sets in. Each customer migration needs new transformation logic. Mappings need to be adjusted. Validation rules get added. Edge cases require custom scripts. Engineering ends up supporting every migration. Professional services cannot run the process independently. Developers keep getting pulled back into implementation work. Product development slows down. The ETL tool itself wasn’t expensive. But the engineering time tied to it was. And when migrations happen repeatedly across new customers, replacements, and upgrades, that cost quietly compounds. The teams that scale migrations eventually realize something important. Migration is not just about moving data. It’s about creating a repeatable operational process that doesn’t depend on engineering every time. #DataMigration #DataEngineering #SoftwareEngineering #ISV #SaaSArchitecture #TechLeadership #EnterpriseSoftware

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Yoav Aviv

Self-employed24K followers

2w

What many teams eventually discover is that migrations behave very differently from integrations. ETL tools are great when the source and target structures are stable, and the pipeline runs continuously. Customer migrations are the opposite. Every dataset is slightly different, validation rules change, and the process needs visibility, reconciliation, and repeatability across many implementations. That’s usually the point where organizations start looking at dedicated migration tooling instead of stretching integration platforms to handle a completely different operational problem.

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