Bill is conducting an analysis of a new it service. he would like to assess it using the open systems interconnection (osi) model and would like to learn more about this framework. what organization should he turn to for the official definition of osi?

International Organization for Standardization (ISO)

Explanation:

International Organization for Standardization (ISO)  is the organization that globally provides and sets the standard for any company/organization , products and services. It major feature is to improve the quality and safety factors in commercial area ,trade sector, industrial field and other bodies.

According to the mentioned scenario of question, Bill should contact the International Organization for Standardization (ISO)  for knowing about the standards of the OSI (Open system interconnection)model.ISO is he organization that has generated the OSI model's frameworks with the standards concerning about the connection of computer devices. Thus, IT services can be accessed using OSI authentically with the guidance of ISO.

Just trying to get some points : p sorry bro