gemba is a Japanese word for Real Place/Shop floor. Following are the principles of Gemba:
Go to gemba – when abnormality occurs
Check Gembutsu – Machine, Materials, Failures, Rejects, etc
Search for – Muda (waste), Mura (inconsistency), Muri (physical strain)
Speak with data – Take temporary countermeasures on the spot
Make KAIZEN® – Remove root causes
Standardize – Standardize to prevent recurrence