OB vs OD - is OB part of OD or OD a part of OB?

hi, does anyone know is OB part of OD or OD is part of OB???

OD is the part of OB. In organisation behaviour we do OD to know the employees perseption towards organisation.

hi,
as per my knowledge, OD is a stream which has drawn various concepts from the field of OB. OB aims at identifying and studying various patterns of behavior at work whereas OD aims at moulding and changing these behaviors to adjust to org.'s benefit.

Hi,
I agree with Sambhunath, OD is part of OB, untill unless you dont know the OB its really very difficult to go for OD, any changes known as OD if it refelects across the organisation, on the basis of OB one can make effective planning on OD for horizontal deployment of the same.
Regards

Hi Folks!
Great to see the replies from Shevta & Rohit & they are true.
However, I would only like to clear the air that While OB is a discipline studying the human behaviour in Organisation, OD on is a tool to bring about Organisational Change in Culture & Behaviours.

Hi..indrajit,
OB syands for organization behaviour and OD stands for Organization Development

OB reflects the culture of the organisation while OD is a time bound exercise for Smart performance.