The planning and control practices should be defined to be mutually consistent as the outputs from one are often the inputs to another. Most planning and control practices provide information for controlling and reporting, the primary information flows for which are shown in Figure E.2. For example, a risk can become an issue if it materialises, and an issue can trigger a change request to keep the work viable. More detail on the interfaces among practices is included in each practice section. The planning and control practices apply throughout the life cycle of a portfolio, programme or project and should work seamlessly with the solution delivery practices.