Design and development of computer software; Design and writing of computer software; Design, development and implementation of software; Design, installation, updating and maintenance of computer software; Software design and development; Computer software design; Computer software design and updating; Computer software design for others; Computer programming and software design; Consultancy in the field of software design; Consulting services in the field of design, selection, implementation and use of computer hardware and software systems for others; Custom design of computer software; IT consulting services; Research, development, design and upgrading of computer software; Updating and design of computer software