564ac4e1__Sustainability_Maturity_Model__Sustainability_Maturity_Model_Openness_Summary
[SSMM Level] 6 [SSMM Title] Fruiting [Reuse Readiness Level] 7 - Software is highly reusable; the software can be reused by most users with minimum cost and risk. 4 - Quantitative management [Openness Summary] 
Software is managed in such a way as to ensure that one person's changes do not break another's reuse; code has sufficient unit tests and release management processes to ensure that releases are of a resonably consistent quality.
Software Sustainability Maturity Model
Openness Summary