In recent years, the digitalisation of the construction sector has consolidated Building Information Modeling (BIM) as a reference for the information management of the work throughout its entire life cycle. The ScanToBIM process is placed in this context, understood as the set of activities aimed at the acquisition of an artefact or a built environment using three-dimensional survey techniques and the translation of such data into structured and queryable BIM information models.
Through the acquisition and structuring of metric data, ScanToBIM allows you to relate the physical reality of the built environment with the digital information environment, providing reliable models to support the design, verification and management activities of the existing structure. The process takes on a particularly relevant role in the national context, characterized by a large and heterogeneous building heritage, often lacking updated and coherent documentation.
Beyond geometric transposition: ScanToBIM as a methodology
One of the central objectives of the volume is to overcome a merely instrumental reading of ScanToBIM, still frequently traced back to the simple conversion of a point cloud into a three-dimensional model. The text instead proposes a more articulated vision of the process, interpreted as a methodology capable of integrating survey, modeling and information management within a coherent and finalized flow.
From this perspective, modeling is understood as a critical and interpretative operation, in which the definition of information objectives, the selection of the level of detail and the structuring of the data play a decisive role. This approach is particularly significant in interventions on the existing, where the geometric complexity, the historical stratification and the lack of reliable sources make a methodologically rigorous approach necessary.
A structured path: from the regulatory framework to the operational process
The reader is accompanied along a structured path which, starting from the regulatory and methodological framework of BIM, builds a progressive awareness of the ScanToBIM process as an act of information responsibility. The analysis of the regulatory evolution, with particular reference to Legislative Decree 36/2023 and the increasingly central role of BIM in public contracts, highlights how ScanToBIM can no longer be considered a mere technical operation, but a choice that directly affects the quality, reliability and traceability of the information assets of the work.
In this sense, the survey and its translation into an information model become foundational elements of the governance of the construction process, with concrete consequences in terms of control, transparency and risk management. On these premises, the text goes into the merits of the ScanToBIM operational flow, breaking it down into its constituent phases (survey, registration, post-processing, export and BIM integration), and interpreting them as interdependent steps of a single information process.
Each phase is analyzed in relation to the responsibilities connected to the production, validation and use of the data, placing coherence between objectives, tools and expected results at the center and recognizing the quality of the information as the essential prerequisite for informed design and management decisions.
The survey phase: data, methods and informed choices
The digital survey phase is assumed as the foundation of the entire ScanToBIM process, since it is at this moment that the quality, reliability and information potential of the model are defined. The volume systematically analyzes the main three-dimensional acquisition techniques, such as LiDAR, SLAM and photogrammetry, highlighting not only their technical characteristics, but above all the operational and information implications in relation to the different application contexts.
Attention is focused on the variables that determine the effectiveness of a survey, such as accuracy, resolution, completeness and scale of representation, highlighting how these parameters must be defined according to the information objectives and not according to standardized logic. From this perspective, the text guides the reader towards conscious and responsible survey choices, avoiding oversized or inconsistent acquisitions and recognizing the survey data as the critical basis on which the entire ScanToBIM process is built.
From the point cloud to the information model
The transition from the point cloud to the information model represents one of the most delicate and decisive moments of the entire ScanToBIM process. The volume addresses the phases of recording, post-processing and exporting data from an operational perspective, clarifying how operations such as cleaning, decimation, classification and choice of formats directly impact the quality, verifiability and durability of the information produced.
In the BIM integration phase, the ScanToBIM process is placed within a broader system of information production, verification and management, relating the relevant data to the authoring, checking and management activities.
To complete the text, operational video lessons are also available, accessible via QR code, which delve into some of the phases described in depth in application, offering practical examples and support for the implementation of the illustrated methodologies.
A text designed for professionals and contracting authorities
Finally, the volume explicitly addresses the contractual, organizational and legal implications of the ScanToBIM process, recognizing them as structural components of information production and management. These aspects are treated as decisive elements for the correct definition of information requirements, responsibilities and control mechanisms, particularly in public contexts, where the quality and traceability of data take on a strategic value.
From this perspective, the text is configured not only as a technical-operational manual, but as a decision support tool, designed to accompany professionals and contracting authorities in the construction of digitalisation processes that are aware, coherent and oriented towards the management of the building heritage over time.
