From wikipedia:

Core Values of OD:
Underlying Organization Development are humanistic values. Margulies and Raia (1972) articulated the humanistic values of OD as follows:

Providing opportunities for people to function as human beings rather than as resources in the productive process.
Providing opportunities for each organization member, as well as for the organization itself, to develop to their full potential.
Seeking to increase the effectiveness of the organization in terms of all of its goals.
Attempting to create an environment in which it is possible to find exciting and challenging work.
Providing opportunities for people in organizations to influence the way in which they relate to work, the organization, and the environment.
Treating each human being as a person with a complex set of needs, all of which are important to their work and their life.[5]
Differentiating OD from other change efforts such as- 1. Operation management 2. Training and Development 3. Technological innovations....etc

Objective of OD
The objective of OD is:

To increase the level of inter-personal trust among employees.
To increase employees' level of satisfaction and commitment.
To confront problems instead of neglecting them.
To effectively manage conflict.
To increase cooperation and collaboration among the employees.
To increase the organization's problem solving.
To put in place processes that will help improve the ongoing operation of the organization on a continuous basis.