Anatomy
What each instrument can, and cannot, tell you
Short and one surface each. Every figure is drawn from an incident this app actually simulates, so what you are looking at is emitted telemetry rather than a picture of what telemetry looks like.
Reading the instruments
What each surface can and cannot tell you.
Shapes worth knowing
Signatures you can recognise on sight.
Method
How to get from a symptom to a cause without guessing.
Load or cost: the first fork in the road
7 minTwo questions separate most incidents in the first minute. This is how to ask them.
The service that hurts is not the service that broke
7 minWhy every graph points at the wrong component, and what to look at instead.
Proving it, not just knowing it
6 minThe difference between being right and being able to show you are right, and why this app scores them apart.
6 lessons.