Usage of Design Patterns in Software Development

The objective of my MSc Thesis was to map over reasons, why are design patterns so popular in the modern information systems and other applications development. It is considering with the basic aspects of object-oriented systems, expounds the importance and structure of design patterns. The explication is followed by categorization of design patterns and in more detail is focused on the most frequently used design patterns including their contribution or complications, which could eventually occur. The advantages of design with design patterns are demonstrated on practical example of database application