By Eugene le Roux, mechanical engineer, one of his regular online articles on general project management principles.
Many references have so far been made to the technical system levels which lie in one plane, starting from material, and component level upwards.

Eugene le Roux, retired mechanical engineer.
© RACA Journal
But the humble component, like a tyre, could require a massive supporting industry, and so could the higher sub systems.
Should we place these supporting management activities, (comprising who provides, what products they provide, where they are situated, when they can supply, at what price they can supply, and at what risk), on a plane perpendicular to the first plane, against the same system levels?
According to simplistic geometry, there is still place for one more plane. Would it make sense to allocate this to human and contractual relations? Can it be said that human relations on a big project can play a major role, good or bad? Projects have even been terminated because of this. Even wars could be started because of bad attitudes. Robert Kiyosaki said: Ego + ignorance = arrogance.
Would you concur that human relations are important enough in project management to be allocated to a third plane, also against the same system levels? Where does the boundary between humanity and technology lie ?
Whether we settle on a 2D or 3D matrix, the number of elements that must be managed are numerous.
Your views would be greatly appreciated.