This article was first published at the Inaka Blog on May 31, 2016 (It's mostly unedited, so some stuff might be already outdated)

So, we had a Tech Day at Inaka's offices, but one of the talks could not be recorded. In that talk, Hernán presented 7 Heuristics for Object-Oriented Design. And since we couldn't have him on record to share all that wonderful stuff with everybody else in the world, I thought I would write a blog post about it. That way, at least some of it will not be lost.

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