A Process Group includes the constituent portfolio management processes that are linked by the respective inputs and outputs, where the result or outcome of one process becomes the input to another. The Process Groups should not be thought of as portfolio management phases. Table 3-1 reflects the mapping of the 16 portfolio management processes into the three Portfolio Management Process Groups and the five Portfolio Management Knowledge Areas. Each of the key portfolio management processes is shown in the Process Group in which most of the activity takes place.