Book excerpt: If you are wondering which metrics are important, confused about the kind of chart you should add to your dashboards, or want to discover how to find and fix incidents before your customers even know there is a problem; this book can fill those gaps in just a couple of commutes. I'll explain what metrics to start with, and how you can use a simple process to refine your strategy over time to find metrics that are appropriate to your context. This book covers the following web operations monitoring fundamentals: - Incident management - Metric collection - Creating dashboards - Selecting metrics - Choosing chart types - Monitoring metrics to detect problems - Raising alarms and sending alerts