This document appears to be from a company called AOE and contains their technology radar from Q1 and Q3 of 2017. It provides classifications and recommendations for different technologies related to programming languages, frontend development, distributed systems, devops, and containers. The radar evaluates technologies on adopt, trial, assess, and hold criteria. It highlights changes between Q1 and Q3 of 2017, with 24 items changing and 36 new items added in the later update.