System of Inquiry for a code of ethics in the workplace

Develop a system of inquiry to be used in evaluating decision-making, problem solving, and behavior in a business setting.  This model will include a basic framework as well as a discussion of why, how, when and by whom it is used. Consider how the code would be implemented, possible reactions to the code from employees and the effect the code would have on the organization.

I see the system of inquiry as analyzing a code of ethics and using it to determine and evaluate whether the decision-making, problem solving and behavior in a business setting to meet the ethical standards or code of ethics in place.  The basic framework would include a discussion of why, how, when and by whom the sytem of inquiry would be used. For example, the HR manager can use the system of (ethical) inquiry to determine if an employee or a department manager has stepped our of the bounds of ethical propriety, based on a complaint brought to HR. Basically, the code of ethics document is used to outline the system of inquiry.   I need help in tieing all of this together since I am not really sure how to develop a system of inquiry for the code of ethics.   Any code of ethics can be used for this but they need to be stated as to what they are.