42 Design, installation and maintenance of computer middleware and software for the distribution and/or management of sound, images and data; design of computer hardware for the distribution and/or management of sound, images and data; design, installation and maintenance of computer middleware and software; design of telecommunications access systems; project management services relating to design, installation and maintenance of computer hardware, middleware and software for the distribution and/or management of sound, images and data; design, installation and maintenance of computer hardware, middleware and software; software as a service; computer software support services; advisory and consultancy services relating to all the foregoing services