In dRofus, it is possible to start planning the areas of defined functions early on in the project, then go on as the project progresses to detail in the areas of each sub-function, using this to plan room areas as the room programming starts and then compare it all with the design in the design process.
Below is a description of how this can be done. To simplify the explanation, an example has been used where the levels of the function structure are called "Department" (level 1), "Subdepartment" (level 2) and Sub-Subdepartment (level 3). As this naming structure is adapted in the interfaces, your function structure may give an according difference in naming structure.Area Planning and Programming in dRofus has several parts. Planning of Functions, Programming of Rooms and comparing Programmed vs Design.
Planning of Functions in dRofus can be done with functions alone (before rooms are added to functions)
Programming of Rooms in dRofus is when rooms are added within a function.
Comparing Programmed vs Design in dRofus is when the rooms have both a programmed area and a design area so that they may be compared against one another.