42 [ Computer software consultation in the field of computer software for creating, connecting, securing and managing networks of interconnected enterprise software applications and platforms, customer relationship management application and platforms, trading exchange and marketplace software applications and platform, electronic commerce application and platforms, middleware platforms, portals, application services and legacy systems; installation and maintenance of computer software for creating, connecting, securing and managing networks of interconnected enterprise software applications and platforms, customer relationship management application and platforms, trading exchange and marketplace software applications and platforms, electronic commerce applications and platforms, middleware platforms, portals, application services and legacy systems ]