> For the complete documentation index, see [llms.txt](https://gchandra.gitbook.io/data-warehousing/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://gchandra.gitbook.io/data-warehousing/fundamentals/8-steps-to-design-a-data-warehouse/environment.md).

# Environment

* Need separate environments for Development, Testing, and Production.
* Development & Testing will have some % of sample data from Production.
* Testing and Production will have a similar HW environment. (Cloud / In house)
* Nice to have a similar environment for development.
* Track changes, indexes, and query changes are done in the lower environment.
* DR environment is part of the Production release.
* Suppose it's in-house; deploy it in different data centers. If it's cloud, deploy it in different regions.