42 design and specification of data, telecommunications, and computer network systems for smart buildings; design and specification of audiovisual, IT, security, telecom, and IoT systems for buildings; computer systems integration services; information technology project management services focusing on smart buildings; technological planning and consulting services in the field of network infrastructure related to smart buildings; consulting services in the fields of design and development of data, telecommunications, and computer network systems; providing consultation and advice concerning smart buildings and proptech