The analytic sandbox should be minimally governed. The idea is to create an environment that lives without all the overhead of the data warehouse environment. It should not be used to support the organization’s mission critical capabilities. It shouldn’t be used to directly control or support any core operational capabilities. Likewise, it is not intended to be utilized for ongoing reporting or analytics required by the business on an ongoing basis, especially any reporting that supports external reporting to meet financial or government regulations.
Source: Design Tip #174 Does Your Organization Need an Analytic Sandbox? – Kimball Group
Built one of these in 1992. It was retired in 2014.