摘要 : Since the 1950s, project portfolio management (PPM) has offered principles helping us to act in PPM-related situations. Our studyintegrates what we know by reviewing seven decades of PPM research. We identify 17 PPM principles in ... 展开 Since the 1950s, project portfolio management (PPM) has offered principles helping us to act in PPM-related situations. Our studyintegrates what we know by reviewing seven decades of PPM research. We identify 17 PPM principles in four categories that haveshaped our thinking and show how these are embedded in a semantical hierarchy. By doing so we shed light on the thoughts,intentions, and practices behind the principles, which support practitioners in becoming knowledgeable agents. By reflecting onthe deficits of the identified principles’ underlying assumptions, we propose a path for future research. 收起