# 2882 ![rw-book-cover](https://readwise-assets.s3.amazonaws.com/static/images/article3.5c705a01b476.png) ## Metadata - Author: [[skybrary.aero]] - Full Title: 2882 - Category: #articles - URL: https://www.skybrary.aero/sites/default/files/bookshelf/2882.pdf ## Highlights - success and failure are equivalent in the sense that they come from the same source – everyday work, and performance variability in particular (Principle 10. Equivalence). We must therefore focus our attention on work-as-done and the system-as-found. ([View Highlight](https://read.readwise.io/read/01hh12dbgw14etgteyrz0gza8f))