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Table 5 The seven strata derived from multivariate analysis

From: Investigating probabilistic sampling approaches for large-scale surveys in software engineering

Stratum Name Groups
EM1 Agility Agile and Lean Software
Scrum Practitioners
Agile Project Management Group
Lean Agile Software Development Community
Scrum Practitioners, Scrum Masters
EM2 Project Management The Agile Project Management Hub
EM3 Agile Practices 1 Agile Testing
eXtreme Programming (XP)
EM4 Agile Practices 2 Software Refactoring
Test Driven Developers
EM5 Software Testing Test automation
Bug Free : Discussions in Software Testing
Software Engineers in Test
EM6 Configuration Management Configuration and Release Management
Configuration management
SCM (Software Configuration Management) Professional Network
EM7 Software Architecture Software Architect Network