The is a multi-faceted role that users determine what outputs they want from the system and construct plans for developing the necessary programs that produce those outputs.

The answer is "system analyst."

Explanation:

A "system analyst" is a role in which a person helps an organization or another person fulfill his or her needs when it comes to the system. It is, therefore, his job to analyze the system, including its design and implementation. This makes his role "multi-faceted," meaning he assumes several aspects in relation to his job and he needs to be versatile in it.

In order for a person to become a skillful system analyst, he must consider sharpening his skills in relation to critical thinking, problem-solving, management  strategies and capacity to work under pressure.