42 Technological services and research and design relating thereto; computer software design; configuration of computer software; research, development, design and upgrading of computer software; software creation; computer security services, namely, design and development of secure computer hardware, software and systems; digital signature verification services; electronic cryptology services; installation, maintenance and repair of computer software; computer programming; advisory services in the field of product development and quality improvement of software; diagnosis of faults in computer software; integration of computer hardware and software systems; design of interior decoration, building interiors, business premises, buildings and furnishings; design services; designing and planning of real estate subdivisions and developments; real estate planning; information, advisory and consultancy services relating to the aforesaid services