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The paper presents the logical structure and uses of the Document Information System in business television organizations. In order to describe the processes involved in the different documentation subsystems in television, the creation of a news item is walked through, indicating when and how each subsystem plays a part in the assembly line of the final broadcast product. Se muestra la estructura lógica y utilidad de un Sistema de Información Documental encuadrado en el marco de las organizaciones empresariales televisivas. Para describir los procesos de utilización de los diferentes subsistemas de documentación en las televisiones (audiovisual, textual, sonoro y fotográfico) se lleva a cabo un recorrido sobre las etapas de creación de una noticia televisiva, indicando en qué momento y de qué manera la documentación es parte de la cadena de montaje de la información que posteriormente será emitida por la cadena.

It is a matter of fact that 3D visualisation and proper documentation of cultural objects helps to preserve the history and memories of historic buildings, archaeological sites and cultural landscapes, and supports economic growth by stimulating cultural tourism. Preservation, visualisation and recreation of valuable historical and architectural objects and places has always been a serious challenge for specialists in the field. Today, the rapid developments in the fields of close-range photogrammetry, terrestrial laser scanning (TLS) and computer vision (CV) enable to carry out highly accurate 3D models so as to be extremely effective and intuitive for users who have stringent requirements and high expectations. In this note we present the results of the survey and 3D modeling of an ancient gate, Porta Savonarola, located within the remains of the medieval town walls surrounding the historical city center of Padua, Italy. The work has been undertaken within the framework of the project “Walls Multimedia Museum” (WMM) promoted by the local private association “Padua Walls Committee”. The goal of the project was to develop a prototype of an “extended” virtual museum, spreaded along most interesting locations of the town walls. The survey of the ancient gate was performed with a Leica C10 and P20 terrestrial laser scanners. Once the acquired scans were properly merged together, a solid model was generated from the global point cloud, and plans and elevations were extracted from it for restoration purposes. A short multimedia video was also created for the “Walls Multimedia Museum”, showing both the outer and inner part of the gate. In the paper we will discuss all the steps and challenges addressed to provide the 3D solid model of Porta Savonarola from the TLS data.