> For the complete documentation index, see [llms.txt](https://developer.harness.io/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://developer.harness.io/resilience-testing/3.0/new-to-resilience-testing.md).

# New to Resilience Testing?

- [Overview](https://developer.harness.io/resilience-testing/3.0/new-to-resilience-testing/overview.md): Understand Harness Resilience Testing and its testing approaches
- [Key Concepts](https://developer.harness.io/resilience-testing/3.0/new-to-resilience-testing/key-concepts.md): Essential Harness Chaos Engineering concepts and terminology
- [Architecture](https://developer.harness.io/resilience-testing/3.0/new-to-resilience-testing/architecture.md): Harness Resilience Testing architecture overview