Management science deals with the overall managing process problems as well as with its specific modalities performing in different social and business systems. Its theoretical aspects have been strongly affected management practice since the very beginning of 20th century when the discipline foundation was built by classics, “Fayol and Taylor”.

With the discipline development practice has gradually benefited on its postulates accepted by individuals and organizations. New century is likely to be the discipline maturity period expected to come up with some more serious management solutions. There is not a universal and overall definition of management for there are great number of authors and management theories. But actually there is an acceptable one including almost all management aspects, phases and principles: Koontz and O’Donnell in the late 1970s defined management as all the activities and tasks undertaken by one or more persons.