42 Conducting of technical project studies; software development (design); software installation; software maintenance; updating of software; software rental; programming for computers; computer system analysis; computer system design; consultant services with respect to computer hardware design and development; digitization of documents; Software as a Service (SaaS); cloud computing; advice relating to the design of computer systems and particularly computer programs for hotel management and booking; providing non-downloadable software enabling implementation and management of sales strategies for hotels; providing search engines with respect to the comparison, booking and purchase of travel and hotel rooms; designing, developing and providing software applications enabling the implementation and management of sales strategies for hotels for use with personal computers, personal digital assistants, cellular telephones and all other mobile devices; professional consultancy unrelated to business dealings concerning computer systems and in particular hotel management and booking programs; design and maintenance of computer programs and systems for hotel reservations and assistance in the management of hotel bookings by providing databases; setting up of software parameters for third parties in the field of hotels; rental of software in the field of hotels; technical project study aimed at installing a hotel reservation system on the Internet; design and development of Internet sites; hosting of Internet sites; hosting e-commerce platforms; service platform hosting; designing and developing logistics software, supply chain management software and e-commerce portals; providing temporary use of non-downloadable software for transmitting audio content, video content, photographic images, text, graphics and data; providing software application programming interfaces (API) for electronic mail and transmission of audio content, video content, photographic images, text, graphics and data; platform as a service (PaaS) featuring software platforms for real estate management, management of hotels, computerized reservation of hotel services; platform as a service (PaaS) featuring software platforms for electronic mail and transmission of audio content, video content, photographic images, text, graphics and data; providing temporary use of non-downloadable software for processing electronic payments; providing non-downloadable e-commerce software to allow users to perform electronic business transactions via global computer and communication networks; providing an application programming interface (API) enabling users to perform electronic business transactions via a global computer network; services of a platform as a service (PaaS) featuring software for electronic commercial transactions.