It is elementary mathematics but 3D WBS method integrates many mathematical concepts.
In the construction of the WBS, it appears concepts of algebra. The Products are factorized in the WBS matrix or within Cubix 360 software, the two other arguments are the Zones and the Activities. To generate the list of the schedule’s tasks, an algorithm develops thefactorized elements. This is why it is so fast to produce schedules with 3D WBS method, because of this concept of factorization on the WBS.
Behind the cubes of the 3D Gantt, there are obviously concepts of geometry.
The graduation of the WBS cube’s axis calls a calculation of the schedule’s dates, in other words the graph theory is used. The concept of barycentre is also usedto position Zones, Products and Activities on the WBS cube’s axis.
The identification of the interfaces calls also mathematical concepts, as the formula of the norm of a 3D vector to evaluate the criticity of an interface.