Despite the overwhelming advantages of using an IT project management methodology, organizations are rarely able to motivate their staff to use them. While empirical research states that the usefulness of a methodology is the single most important determinant of its acceptance and use by actual users, studies have not examined which aspects of usefulness are more important for which type of people in which situations. Our study is a step toward filling the gap in methodology evaluation, development, and adoption literature, which to date has not developed a theoretically and practically complete as well as relevant typology of the usefulness of a methodology and has also not studied the effect of personal traits such as needs. Based on needs and expectancy theories, we develop a conceptual model that holds that individual needs and contextual factors such as gender and age determine which aspect of the usefulness of a methodology has a bigger effect on individuals’ intentions to actually use the methodology.