It shows how to calculate the value of planning gain needed to level the playing field between standardized house building and the increased costs associated with a zed scheme.

Each addition to the development case should be balanced with the expected benefits in terms of time saving, quality gain, or providing a basis for project estimation, planning, and scope management.

So make sure that when you're planning your tasks and activities you include things that might not be fun, but from which you'll gain a sense of achievement.