definiens: means all informatio n concerning the business and proprietary affairs of a Party which a reasonable person would understand to be confidential, including, without limitation, product specifications, data, k now- how, formulae, compositions, processes, designs, sketches, photographs, graphs, dra wings, samples, inventions and ideas, past, current, and planned research and development, current and p lanned manufacturing or distribution methods and processes, market studies, business pla ns, computer software and programs ( including object code and so urce code ), computer software and database technolo gies, systems, structures and architectures ( and related processes, formulae, composition, devices, inventions, discoveries, concepts, ideas, designs, methods and information ) ; provided, however, that Conf idential Information shall not include ( a ) informat ion that is in the public domain at the time it is disclosed to a receiving Party or enters the public domain through no fault of a receiving Party ; ( b ) information lawfully obtained by a recei ving Party f rom a third party not in breach of any obligation of confidentiality or non- use to a disclosing Party ; ( c ) information already known to a receiving Party at the time of disclosure by a disclosing Party as shown by contemporaneous documentation acknowledgin g same ; and ( d ) information furnished to others by a Party intended not to have restriction on disclosure