Methodology for complexity reduction of IT system (adjustment of the sessions´ methodology)

One way to enhance security, increase functionality and reduce costs of maintenance of the IT system is to reduce its complexity. In this work authors used Roger Sessions´ methodology for complexity reduction of the enterprise architecture and by adapting it they develop methodology for complexity reduction of the IT system. One of the aims of the enterprise architecture is to maximize the business value delivered by the IT investment so it focuses on the relationship between an organization´s IT architecture and its business architecture. Because of this tight relationship between enterprise and its IT system the adjustment of this methodology is possible. Three basic steps for the SIP (Simple Iterative Partitions) process are: partitioning of the system; simplification of the system and iteration between subsets of the system. Basics, importance and methodology of this method are more understandable to the technical engineers than to the different level managers. That is why this methodology should be first applied to the IT part of the enterprise system. However this methodology could be applied to all kind of technical and nontechnical systems for complexity reduction.