Summary

In this chapter, we saw what observability means in the context of software applications and what makes it different from monitoring. We saw increased observability complexity, from more straightforward, monolithic applications to more complex, distributed applications. We discussed the observability building blocks and how they evolved. Finally, we saw some critical use cases where observability principles bring attractive business advantages.

Now, you can more easily discuss the differences between monitoring and observability, and when to adopt one of them. You can also advocate for observability principles in your organization, clearly understanding the requirements and advantages.

In the next chapter, we will map the different AWS services we can use to make applications observable.