Computer software applications, downloadable, for use in hotel and hospitality industry to facilitate checking in guests and customers; Downloadable computer application software for laptop and desktop computers, namely, software for use on a subscription basis in hotel and hospitality industry to facilitate checking in guests and customers; Downloadable computer software applications for use in the hotel and hospitality industry, enabling the scanning of guest travel documents and the integration of guest information into the hotel's property management system (PMS); Downloadable computer software for use on a subscription basis in the hotel and hospitality industry for scanning, extraction, processing, validation, and storage of guest travel documents and identification (ID), supporting the completion of guest registration cards, integrating guest information into the hotel's property management system (PMS), retrieving previously stored guest data, tracking "Do Not Rent" (DNR) statuses, transferring minimal guest data to a central server, facilitating the collaboration of negative guest histories between hotels, and providing evidence to reduce chargebacks; Downloadable software for use in the hotel and hospitality industry for scanning, extraction, processing, validation, and storage of guest travel documents and identification (ID), supporting the completion of guest registration cards, integrating guest information into the hotel's property management system (PMS), and retrieving previously stored guest data