Trying to understand the difference between a Project-Based Organization (PBO) and a Projectized Organization. In PMBOK Ed. 5 (which I expect would be the same in Ed. 6), the two terms are defined as follows: Project-Based Organization (PBO): A variety of organizational forms that involve the creation of temporary systems for the performance of projects. PBOs conduct the majority of their activities as projects and/or provide project over functional approaches. (p. 553 in Ed. 5) The book also notes on p. 14 that PBOs may diminish the hierarchy and bureaucracy inside the organizations as the success of the work is measured by the final result rather than by position or politics. Projectized Organization: any organizational structure in which the project manager has full authority to assign priorities, apply resources, and direct the work of persons assigned to the project. (p. 556 in Ed. 5) It seems to me that the hierarchy is what primarily differentiates the two organizational terms: PBOs diminish the hierarchy while projectized organizations have a clear hierarchy with a PM in charge. Am I on the right track in thinking this? Are there other key differences between the two terms? Also, would the following be examples of PBOs: - an enterprise cross-functional committee created to work on the professional development event project for the company where committee members come from different roles/levels of the organization (such as both staff and management), and the committee chair, while leading the overall effort, isn't really directing the work of each committee member - a condo board that works on a capital upgrade project for the building. The board members are building residents who volunteer their time and provide overall leadership for the project, but aren't directing the work on a day-to-day basis. Even though there is a board chair, this person doesn't really direct the work of other board members - a professional network or group to which multiple organizations belong that was formed for purposes, such as advocacy, as well as purchasing services collectively (such as educational technology licences that is purchased collectively by a group of educational institutions).