The International Conference on the Quality of Information and Communications Technology (QUATIC) is a leading scientific conference that gathers experts from industry and academia to exchange ideas and approaches regarding all quality aspects in ICT software and systems engineering and management. This forum fosters lively discussion on furthering the state-of-the-art, defining future directions, and disseminating advanced new methods, techniques, and tools. QUATIC 2025, now in its 18th edition, will be hosted in Lisbon, Portugal's capital, which is known for its rich history, stunning architecture, and vibrant culture. The city is famous for its iconic yellow trams, historic neighborhoods like Alfama and Bairro Alto, and landmarks like Belém Tower and the Jerónimos Monastery. It blends old-world charm with modern energy. QUATIC 2025 invites practitioners and researchers to submit technical papers reporting original research and experience results in all topics and sub-fields of Quality in ICT process, product, and applications domains, as well as sharing practical studies.