## 5 Discussion  
This section will discuss the impact of the proposed SCABIM methodology. The residential building situated at Calle Bertsolari Tixrrita, 38, in San Sebastian, Spain, was chosen for the case study. The proposed procedure can be the departure point for existing buildings which were neither designed nor built using the BIM methodology but which implement this new methodology to manage the rest of the building's life cycle. The results obtained showed how the analysis of the building's state of conservation is optimised because all existing information regarding the building (both graphic and alphanumeric) is linked to the model. It is a dynamic model that facilitates agile and up-to-date viewing and extraction of the information required at any time. This helps establish the intervention preferences depending on the urgency indicated for each instance of damage, while also ensuring rigour in diagnoses of damage and the proposed repair interventions. The methodology proposed and validated in the case study contributes an advance in this field of knowledge and can be repeated in other residential buildings. The BIM methodology has been used above all in the phases of design and execution of newly constructed buildings. It has even been successfully applied in facility management of  
Figure 15: Maintenance model. View of maintenance, identifying the need to inspect facade plates according to the date parameters set for each exemplar. Source: own creation. buildings [52; 53]. There is relevant research on the use of BIM in heritage buildings (HBIM), but it focuses mainly on modelling strategies for complex geometries, such as the use of software for NURBS modelling [54]. Although some ongoing research projects study the methodology's implementation in the rehabilitation of buildings, they [55; 56] have not contributed significant results in the application of the BIM methodology to assess the state of conservation of buildings. The new SCABIM methodology can be useful for researchers who work in the field of rehabilitation. The article also provides very practical information for agents who actively intervene in building rehabilitation processes, as they can put it into practice in their work. Those agents, however, are quite likely, not prepared to manage the information in a BIM environment, even though increasingly more technical personnel and companies specialising in rehabilitation are now getting involved in the application of BIM, making major investments to acquire equipment (hardware and software) and train their employees) [57]. Moreover, the agents who actively intervene in building rehabilitation processes are not the only ones who have to adapt to the new methodology. Its application implies the updating of the registry systems of public administrations. In this regard, it should be highlighted that very significant progress is being made in the digitalisation of processes associated with public administration thanks to aid granted by the European Union [58; 59; 60; 61]. This notwithstanding, the proposed methodology has its limitations. New research lines have accordingly been considered to overcome them. On the one hand, the analysis of the aspect, colour or overlap of the different instances of damage is very important information for making a correct diagnosis of damage. It is very useful for the damage to be collected in the model, indicating as faithfully as possible the respective characteristics. This requires a thorough study of the parameters that must be defined for each type of damage to thereby generate specific families for them (cracks, deformations, stains, detachments, erosion, corrosion, discolouring, etc.). On the other hand, the methodology put forward is based on a model prepared and structured using the Revit software of Autodesk. How information can be exchanged between different agents through open source files (IFC) should be studied [62; 63].