A recent InfoQ article describes a simple framework for architectural decisions, using three main elements: Internal Technology Radar, Internal Tech Guidelines, and Architecture Decision Records (ADRs). All three of these are very useful enabling constraints for organizations, but the way you would adopt them may prove a bit difficult.
In this video, Alex reacts to the article and talks about how these techniques are useful, when, and what to pay attention to when adopting them.
The original article is here: https://www.infoq.com/articles/framework-architectural-decisions/.