Any intended change of processes in the company precedes a thorough analysis of its current state - not only processes but also a system analysis. A successful transition for the better must be based only on the knowledge of the current state and the processes taking place in it.
If we define our path to success as "Doing the right things in the right way", then process analysis is concerned with the method, and systems analysis, on the other hand, asks about the reason for our activities—most of the problems and inefficiencies in companies caused by the neglect of fundamental system analysis. New procedures are introduced into the company's processes based on flawed reasoning.
A best practice when implementing a change is to prepare a comprehensive model of the processes after the changes are made. Individual parts of processes influence each other. We do not assess the impact of individual changes from the point of view of the intended functioning of the whole. In that case, either unforeseen complications will occur, or we will not achieve all the desired effects.