A Modelagem da Informação da Construção (Building Information Modeling - BIM) é um novo processo para produzir uma edificação e que pode englobar todo o seu ciclo de vida. Pressupõe a construção de um modelo tridimensional contemplando-se as informações dos objetos a serem construídos. Pela grande amplitude em que este processo pode atuar, ele pode causar muitos impactos em toda a cadeia produtiva e, consequentemente, muitas formas atuais de trabalho deverão ser revistas ou alteradas. Entre estas, a atividade de coordenação de projetos. Este trabalho tem como objetivo o desenvolvimento de uma metodologia de avaliação de salas de coordenação de projetos em BIM e está contextualizado nos usuários do setor imobiliário que utilizam este processo em seus projetos. Ao se coordenar projetos em BIM, são requeridas mídias diferentes daquelas utilizadas quando a análise é baseada em papel. Surgem novas necessidades aos participantes da reunião de coordenação como visualizar, navegar ou verificar um modelo 3D, fazer croquis digitais, e outras atividades que devem tornar a reunião presencial produtiva, com o objetivo de resolver os problemas dos projetos. Neste trabalho são propostos critérios e métricas para avaliação da qualidade de leiautes de salas de coordenação a serem utilizadas no processo BIM (BIM Rooms). Para validação dos resultados, foram analisados e avaliados 14 leiautes diferentes para uma mesma sala em relação às métricas e critérios propostos. Com a finalidade de estabelecer qual a relação de importância entre todos os 10 critérios propostos para atendimento às necessidades dos participantes de reuniões BIM, foi aplicado o método AHP de decisão multicritério baseado na análise de comparações em pares. Os resultados permitiram determinar os melhores leiautes para uma sala equipada com 2 projetores de curta distância. Os critérios e métricas apresentados, bem como a metodologia para medi-los, são úteis para a avaliação de outras salas e leiautes para atender aos usuários de salas de reuniões de projetos baseados em BIM. / Building Information Modeling (BIM) is a new process to produce a building that may include its entire lifecycle. It requires the construction of a three-dimensional model contemplating the information of the objects to be built. Due to the great extent to which this process can serve, it can cause many impacts throughout the production chain and, therefore, many current forms of work should be reviewed or changed. Among these, is the design coordination task. This work aims to develop a methodology for evaluating BIM coordination rooms contextualized in real state users using this process in their projects. When coordinating projects using BIM, different media are required from those used when the analysis is paper-based. New meeting participants\' needs surface like visualizing, browsing or checking a 3D model, making digital sketches, and other activities that make face-to-face meetings productive, in order to solve project problems. In this work, criteria and metrics for evaluating the quality of layouts of BIM coordination rooms are proposed. To validate the results, fourteen different layouts for the same room were analyzed and evaluated regarding proposed metrics and criteria. In order to establish the relative importance among all the ten proposed criteria, the AHP method of multi-criteria decision based on pair comparisons analysis was applied. The results determined the best layouts for a room equipped with two interactive projectors. The criteria and metrics presented, as well as the methodology to measure them, are useful for the evaluation of other rooms and layouts to serve meeting room users based on BIM.

Analisando-se os ambientes comerciais do setor imobiliário, pode-se verificar a presença frequente de maquetes que hoje fazem parte dos estandes de vendas dos edifícios. As maquetes são peças frágeis, de custo elevado, considerável prazo de execução e têm pequena vida útil, sendo usualmente descartadas no desmonte do estande de vendas. Nos estandes de vendas pode-se encontrar também o apartamento modelo decorado, com custos ainda mais elevados. É nesse ambiente que o MVE (Modelo Virtual Exploratório) se torna importante para os setores da construção e imobiliário, cujos mercados são cada vez mais competitivos, onde há a real necessidade da diminuição dos custos, da diminuição dos prazos de execução e do aumento da qualidade dos produtos. Por se tratar de um importante tema de pesquisa científica, este trabalho propôs o desenvolvimento do MVE para venda imobiliária residencial. O MVE foi modelado com um programa CAD (Computer-Aided Design) / BIM (Building Information Modeling) que se mostrou adequado às exigências levantadas na pesquisa. Avaliou-se o MVE através de estudos de caso em empreendimentos imobiliários reais, com corretores e clientes. Os resultados obtidos mostraram que o MVE pode ser desenvolvido com custo e prazo muito inferiores aos da maquete ou apartamento modelo e que tem grande aceitação tanto pelos profissionais de vendas quanto pelos clientes de empreendimentos imobiliários. / Examining the business environment of the real estate sector, it can be verified the large number of architectural mockups that today are part of real estate points-of-sale. Mockups are fragile, expensive, take considerable time to be made and have a short life span, as they are discarded when the sales booth is decommissioned. In the sales booths, it is also possible to find full size furnished mock-up flats, with even higher costs. In this environment, the MVE (Exploratory Virtual Model) becomes important for the construction and real estate industries, whose markets are increasingly competitive, where there is a real need to reduce costs, to decrease in execution times and to increase product quality. As it is an important topic of scientific research, this paper proposes the MVE development for selling residential real estate property. The MVE was modeled with a CAD (Computer-Aided Design) / BIM (Building Information Modeling) tool which proved adequate to meet requirements raised in the survey. The MVE was evaluated through case studies in real estate ventures with brokers and customers. Results show that MVE can be developed with much lower cost and in shorter time than the architectural mockup or the mock-up flat and that it has very well accepted both by real estate sales professionals and clients.

Avec la construction et le développement de la ville intelligente, la façon de construire le modèle 3D réaliste des grands bâtiments de la ville rapidement et efficacement devient le hotspot de recherche. Dans cette thèse, une méthode procédurale de modélisation intelligente est proposée pour construire rapidement et efficacement un modèle de construction de ville 3D à grande échelle basé sur la modélisation de la forme de la façade et de la grammaire de forme. La technologie de l'information du bâtiment (BIM) est un moyen technique important pour améliorer l'industrie de la construction, pour la conception du bâtiment de la ville et la construction de la meilleure recherche et l'application de la technologie BIM est la clé, de gérer efficacement les informations du cycle de vie du bâtiment et de réaliser le partage et l'échange. Cette thèse a étudié l'acquisition et le traitement des données de modélisation. Google Earth et le logiciel ArcGIS sont principalement utilisés pour acquérir et traiter des données d'images-cartes et des données de cartes d'élévation de la zone cible, ces deux types de correspondance et de superposition de données, qui peuvent générer des données de terrain urbain 3D avec des informations de localisation géographique. Ensuite OpenStreetMap est utilisé pour acquérir les données routières de la zone cible, et il peut être optimisé pour le réseau routier nécessaire par le logiciel JOSM. La technologie de balayage laser 3D est utilisée pour collecter des images de texture de surface de bâtiment et pour créer le modèle de nuages de points de la modélisation d'architecture cible afin d'obtenir les dimensions de modélisation par mesure. Sur cette base, cette thèse a principalement étudié le principe et le processus de la règle CGA pour créer des modèles de construction, et étudié la méthode qui peut séparer les éléments architecturaux en utilisant la segmentation d'image pour générer automatiquement la règle CGA et de créer ensuite le modèle de construction. Ainsi, des modèles de construction 3D ont été établis dans le logiciel CityEngine en utilisant les règles CGA et la technologie de segmentation des façades. Cette thèse a construit le modèle d'information intégré au bâtiment urbain (CBIIM) basé sur BIM. L'information sur la construction de la ville est classée et intégrée, et le bâtiment et la composante ont été décrits avec la norme IFC, afin de gérer efficacement les informations du cycle de vie du bâtiment. Cette thèse étudie la technologie du modèle d'association d'information intégrée, qui permet de réaliser une conception standardisée des composants avec des caractéristiques associées et une conception intelligente des bâtiments avec des paramètres associés dans les règles de connaissances combinées avec l'IFC. La technologie de simulation de la construction de visualisation est étudiée. Les règles de connaissance dans le modèle d'information intégré fournissent une référence fiable pour la simulation de construction, et la scène de simulation est créée en invoquant le modèle d'information intégré, ainsi le processus de simulation est terminé. En prenant le campus Baoshan de l'Université de Shanghai comme exemple, le processus de modélisation de la scène entière est illustré, et les étapes de modélisation de toutes sortes d'objets 3D sont décrites en détail pour résoudre les problèmes spécifiques dans le processus de modélisation réelle. Ainsi, la faisabilité et la validité de la méthode de modélisation intelligente procédurale sont vérifiées. Prenant comme exemple le dortoir de l'Université de Shanghai, une simulation et le modèle de simulation ont été créés par les informations intégrées, combinées aux informations de construction pertinentes, la simulation de construction a été complétée par le programme. Ainsi, la faisabilité et la validité du CBIIM sont vérifiées. / With the construction and development of the smart city, how to construct the realistic 3D model of the large-scale city buildings quickly and efficiently which becomes the research hotspot. In this thesis, a novel 3D modeling approach is proposed to quickly and efficiently build 3D model of large-scale city buildings based on shape grammar and facade rule modeling. Building Information Model (BIM) is an important technical means to enhance the construction industry, for the city building design and construction, how to better research and application of BIM technology which is the key, in this thesis City Building Integrated Information Model (CBIIM) is specified to manage the information of building lifecycle effectively and realize the information sharing and exchanging. This thesis has studied the acquisition and processing of the modeling data. Google Earth and ArcGIS software are mainly used to acquire and process image-maps data and elevation-maps data of the target area, these two kinds of data match and overlay, which can generate 3D city terrain data with geographic location information. Then OpenStreetMap is used to acquire road data of the target area, and it can be optimal processed to the necessary road network by JOSM software. 3D laser scanning technology is used to collect building surface texture images and create the point clouds model of the target architecture modeling so as to get the modeling dimensions by measurement. On this basis, this thesis mainly has studied the principle and the process of CGA rule to create building models, and studied the method that can separate architectural elements using image segmentation to generate CGA rule automatically and to create building model furtherly. Thus 3D building models have been established in the CityEngine software using CGA rules and facade modeling technology. This thesis has specified the City Building Integrated Information Model (CBIIM) based on BIM. The city building information are classified and integrated, and the building and component was described with the IFC standard, in order to manage the informations of building lifecycle effectively. This thesis studies the integrated information association model technology, that it can realize standardized component design with associated features and intelligent building design with associated parameters in knowledge rules combined with IFC. The construction simulation technology is studied. The knowledge rules in the integrated information model provide a reliable reference for the construction simulation, and the simulation scene is created through the invoking the integrated information model, thus the construction simulation process is completed by the program. Taking Baoshan Campus of Shanghai University as an example, the modeling process of the whole scene is illustrated, and the modeling steps of all kinds of 3D objects are described in detail to solve the specific problems in the actual modeling process. Thus the feasibility and validity of the procedural intelligent modeling approach are verified. Taking the dormitory of Shanghai University as an example, a simulation scene and the simulation model were created by the integrated informations, combined with the relevant construction information the construction simulation was completed by the program. Thus the feasibility and validity of the CBIIM are verified.

L’objet des systèmes de recherche d’informations est de faciliter l’accès à un ensemble de documents, afin de permettre à l’utilisateur de retrouver ceux qui sont pertinents, c'est-à-dire ceux dont le contenu correspond le mieux à son besoin en information. La qualité des résultats de la recherche se mesure en comparant les réponses du système avec les réponses idéales que l'utilisateur espère recevoir. Plus les réponses du système correspondent à celles que l'utilisateur espère, plus le système est jugé performant. Les premiers systèmes permettaient d’effectuer des recherches booléennes, c’est à dire, des recherches ou seule la présence ou l’absence d’un terme de la requête dans un texte permet de le sélectionner. Il a fallu attendre la fin des années 60, pour que l’on applique le modèle vectoriel aux problématiques de la recherche d’information. Dans ces deux modèles, seule la présence, l’absence, ou la fréquence des mots dans le texte est porteuse d’information. D’autres systèmes de recherche d’information adoptent cette approche dans la modélisation des données textuelles et dans le calcul de la similarité entre documents ou par rapport à une requête. SMART (System for the Mechanical Analysis and Retrieval of Text) [4] est l’un des premiers systèmes de recherche à avoir adopté cette approche. Plusieurs améliorations des systèmes de recherche d’information utilisent les relations sémantiques qui existent entre les termes dans un document. LSI (Latent Semantic Indexing) [5], par exemple réalise ceci à travers des méthodes d’analyse qui mesurent la cooccurrence entre deux termes dans un même contexte, tandis que Hearst et Morris [6] utilisent des thésaurus en ligne pour créer des liens sémantiques entre les termes dans un processus de chaines lexicales. Dans ces travaux nous développons un nouveau système de recherche qui permet de représenter les données textuelles par des signaux. Cette nouvelle forme de représentation nous permettra par la suite d’appliquer de nombreux outils mathématiques de la théorie du signal, tel que les Transformées en ondelettes et jusqu’a aujourd’hui inconnue dans le domaine de la recherche d’information textuelle / The object of information retrieval systems is to make easy the access to documents and to allow a user to find those that are appropriate. The quality of the results of research is measured by comparing the answers of the system with the ideal answers that the user hopes to find. The system is competitive when its answers correspond to those that the user hopes. The first retrieval systems performing Boolean researches, in other words, researches in which only the presence or the absence of a term of a request in a text allow choosing it. It was necessary to wait for the end of the sixties to apply the vector model in information retrieval. In these two models, alone presence, absence, or frequency of words in the text is holder of information. Several Information Retrieval Systems adopt a flat approach in the modeling of data and in the counting of similarity between documents or in comparison with a request. We call this approach ‘bag of words ’. These systems consider only presence, absence or frequency of appearance of terms in a document for the counting of its pertinence, while Hearst and Morris [6] uses online thesaurus to create semantic links between terms in a process of lexical chains. In this thesis we develop a new retrieval system which allows representing textual data by signals. This new form of presentation will allow us, later, to apply numerous mathematical tools from the theory of the signal such as Wavelets Transforms, well-unknown nowadays in the field of the textual information retrieval

Le déploiement du développement durable passe par des enjeux de transition sociétale et technique auxquels cherche à répondre le Design for Sustainability (DfS). Dans le cadre de la conception des systèmes de production, et en particulier pour les produits manufacturés, les impacts environnementaux que ce soit en termes de consommation de ressources ou de rejets (déchets, émissions) doivent être intégrés comme des paramètres de conception. L’évaluation des impacts environnementaux (par exemple par l’Analyse de Cycle de Vie, ACV) doit donc s’articuler avec la gestion du cycle de vie des produits (PLM). L’inventaire de cycle de vie, ICV est un élément central du lien entre le système de production et son environnement, caractérisé par des informations géographiques et spatiales sur l’écosphère. Le travail de thèse proposé stipule que les impacts environnementaux des systèmes conçus dépendent de cette caractérisation géographique. Les approches d’écoconception et de DFS doivent donc intégrer ces informations géographiques ce qu’elles ne font que très peu, ces informations n’étant pas intégré dans les outils de conception. La thèse propose donc une approche de modélisation pour intégrer les informations relatives au produit et son système de production (via le PLM), l’évaluation de son potentiel d’impact environnemental (via l’ACV et en particulier l’ICV), et les informations géographiques en conception. Pour cela, les informations géographiques à associer sont identifiées et des cas d’études illustratifs sont construits pour montrer l’impact de ces informations sur la définition des produits / There are different approaches to implement sustainability and Design for Sustainability (DfS) is the one that give more accurate result by considering both global and regional scales. Integration of Life Cycle Assessment (LCA) into Product Lifecycle Management (PLM) is an example of tool integration to support sustainability. In LCA framework, Life Cycle Inventory (LCI) is the quantified and classified list of input and output flow of the LCA model that is a model of the product system, linking the technological system to the ecosphere (Environment system). As each region has a unique environmental system, design characteristics and specifications of technological system should be modified and adopted based on these differences. Implementation of this approach will require geographical information of interacted environmental systems, which is a kind of new strategy in DfS. Therefore, we tested the interest of the integration of Geographical Information Systems (GIS) with PLM to support geographical considerations during product development activities. The main research question of this research work is then how to propose this PLM-GIS integration for DfS. Thus, we conducted that literature review on existing data models about product, environment, geography and their combination is a key to prove the link among them

Les systèmes de vision artificielle sont aujourd'hui limités à l'extraction de données issues de ce que les caméras « voient ». Cependant, la compréhension de ce qu'elles voient peut être enrichie en associant la connaissance du contexte et la connaissance d'interprétation d'un humain.Dans ces travaux de thèse, nous proposons une approche associant des algorithmes de vision atificielle à une modélisation sémantique du contexte d'acquisition.Cette approche permet de réaliser un raisonnement sur la connaissance extraite des images par les caméras en temps réel. Ce raisonnement offre une réponse aux problèmes d'occlusion et d'erreurs de détections inhérents aux algorithmes de vision artificielle. Le système complet permet d'offrir un ensemble de services intelligents (guidage, comptage...) tout en respectant la vie privée des personnes observées. Ces travaux forment la première étape du développement d'un bâtiment intelligent qui peut automatiquement réagir et évoluer en observant l'activité de ces usagers, i.e., un bâtiment intelligent qui prend en compte les informations contextuelles.Le résultat, nommé WiseNET, est une intelligence artificielle en charge des décisions au niveau du bâtiment (qui pourrait être étendu à un groupe de bâtiments ou même a l'échelle d'un ville intelligente). Elle est aussi capable de dialoguer avec l'utilisateur ou l'administrateur humain de manière explicite. / To date, computer vision systems are limited to extract digital data of what the cameras "see". However, the meaning of what they observe could be greatly enhanced by environment and human-skills knowledge.In this work, we propose a new approach to cross-fertilize computer vision with contextual information, based on semantic modelization defined by an expert.This approach extracts the knowledge from images and uses it to perform real-time reasoning according to the contextual information, events of interest and logic rules. The reasoning with image knowledge allows to overcome some problems of computer vision such as occlusion and missed detections and to offer services such as people guidance and people counting. The proposed approach is the first step to develop an "all-seeing" smart building that can automatically react according to its evolving information, i.e., a context-aware smart building.The proposed framework, named WiseNET, is an artificial intelligence (AI) that is in charge of taking decisions in a smart building (which can be extended to a group of buildings or even a smart city). This AI enables the communication between the building itself and its users to be achieved by using a language understandable by humans.

Building Information Modeling (BIM) is becoming imperative across building disciplines to improve communication and workflow from the first blueprint. Maintenance and facility management is however lagging behind in adoption and research of BIM. Utilizing research-through-design, this study explores BIM-enabled facility management and the critical practice of decision-making at the Celsius building in Uppsala. Contextual design and inquiry were applied to identify and suggest important design features that support decisions related to the task of establishing maximum room occupation. Results show that facility managers can make use of fuzzy multicriteria decision-making and expert heuristics to independently reach conclusions. Important design features were found to heavily rely on the existing building models, where context-view filtered to room capacity data in the existing BIM-system effectively supported the users’ assessment of data. The filtered, aggregated information presented in a simplified mobile format was insufficient for decision-making, suggesting that the building model was more important than initially perceived.

Los cambios climáticos originados por el Fenómeno El Niño del 2017 han causado el colapso de una gran cantidad de puentes en Perú. La importancia de estas estructuras radica en las fuertes sumas de dinero que son empleadas para la construcción y mantenimiento, es por ello que se debe tomar importancia en los procesos constructivas para hacer un eficiente uso de la gran cantidad de dinero a emplear para materializar estos proyectos. En presente investigación se mostrarán la diferencia en costo y tiempo mediante una simulación con la metodología de Bridge Information Modeling (BrIM). Dicha metodologia integra información en un modelo visual el cual servirá como herramienta para planificación en la construcción de la superestructura de un puente. Mediante este enfoque se estudiarán la construcción de vigas de concreto presforzado y acero; y losa mediante vaciado in-situ y vaciado con prelosas. Asimismo, se diferenciarán los costos de mantenimiento que requiere cada alternativa, determinando así un sistema estructural optimiza el uso de los recursos económicos y el plazo para la construcción de la superestructura. Como resultado se obtiene el costo integral y tiempo constructivo de la superestructura ideal para el caso de estudio. / The climatic changes caused by the El Niño Phenomenon of 2017 have caused the collapse of a large number of bridges in Peru. Large sums of money are used for construction and maintenance, which is why importance should be taken in the construction processes to make efficient use of the large amount of money to be used to materialize these projects. This research will show the difference in cost and time through a simulation with the Bridge Information Modeling (BrIM) methodology. This methodology integrates information in a visual model which will serve as a tool for planning the construction of the superstructure of a bridge. This approach will study the construction of prestressed concrete and steel beams; and slabs by in-situ casting and precast slabs. Likewise, the maintenance costs required by each alternative will be differentiated, thus determining a structural system that optimizes the use of economic resources and the time frame for the construction of the superstructure. As a result, the integral cost and construction time of the ideal superstructure for the case study is obtained. / Tesis

While the use of BIM (Building Information Modelling) has been increasing over the last decade and enabled a more integrated collaboration of different disciplines in the construction industry, its implementation in the operation phase of a building is still in its infancy in Sweden. Studies have been conducted to identify barriers and opportunities associated with the use of BIM in building operations and maintenance. There is a lack of research proposing a holistic approach to the evaluation of the value of BIM in operation and maintenance from the perspective of economic, ecological, and social sustainability. Therefore, this paper aims to follow up on the identified research gap by investigating: How sustainable value is created using BIM in operation and maintenance from an owner’s perspective?  A sustainable value framework is applied to the findings of an extensive literature review and compared to the reflections of Swedish industry professionals in semi-structured interviews. Based on the value destroyed or missed for key stakeholders by current O&M practices, the opportunities created with the use of BIM are highlighted. It was found that the most added value is expected from an economic and social perspective, reducing current inefficiencies in the integration of databases and documents, process structures, and knowledge management. More efficient information management and improved data accuracy is expected to enable better services, increase employee motivation, and optimize space management. Major struggles highlighted by the industry representatives are costs and a very fragmented work towards the implementation, often limited to internal efforts or small national initiatives. Based on the findings, further research will be needed to test and validate quantitative metrics in case studies, assess to what extent standards can promote the faster and more predictable implementation of BIM in O&M. In addition, the social value implications of using BIM in O&M should be evaluated more in detail. / Medan användningen av BIM (Byggnadsinformationsmodeller) under projekteringen och produktionen av byggnader har ökat under de senaste årtionde och möjliggjorde ett mer integrerat samarbete mellan olika discipliner inom byggindustrin, är implementeringen i driftsfasen fortfarande ovanligt i Sverige. Studier har genomförts för att identifiera hinder och möjligheter som är förknippade med användningen av BIM inom förvaltningen. Det är brist på forskning som föreslår en helhetssyn på utvärderingen av BIM:s värde i drift och underhåll ur perspektivet av ekonomisk, ekologisk och social hållbarhet. Syftet med detta arbete är att identifiera forskningsluckan genom att undersöka frågan: Hur skapas hållbart värde med hjälp av BIM i drift och underhåll ur en ägarens perspektiv? En modell för hållbart värde appliceras på resultaten som omfattas av litteraturöversikt och som jämförs med reflektionerna från svenskt branschrepresentanter i semistrukturerade intervjuer. Baserat på värdet som förstörs eller saknas för de viktiga intressenterna i nuvarande praxis i förvaltningen, diskuteras möjligheter som skapas med användning av BIM. Mest mervärde förväntas utifrån ett ekonomiskt och socialt perspektiv, vilket minskar den nuvarande ineffektivitet i integrationen av databaser och dokument, process strukturer och kunskapshantering. Mer effektiv informationshantering och förbättrad datasäkerhet förväntas möjliggöra bättre tjänster, öka medarbetarnas motivation och optimera utrymmeshantering. Stora frågetecken som branschrepresentanterna framhäver är kostnader och ett mycket fragmenterat arbete mot implementering, ofta begränsat till interna ansträngningar eller små nationella initiativ. Baserat på resultaten kommer ytterligare undersökningar behövas för att testa och validera kvantitativa mätvärden i fallstudier, för att bedöma i vilken utsträckning standarder kan främja en snabbare och mer förutsägbar implementering av BIM i drift och underhåll. Dessutom bör det sociala värdet av att använda BIM i förvaltning utvärderas mer detaljerat.

Building Information Modeling (BIM) has become extremely prominent in the construction industry in the past twenty years. It serves as a digital repository that can, when used to its fullest potential, combine all aspects of designing, building, and managing a structure in one place, alongside all the data produced in those processes. The construction industry has to date struggled to increase productivity alongside similar fields, such as the manufacturing industry, though the construction industry generally has far more stakeholders on one project than the manufacturing industry. Further, building designs are becoming more complex while project schedules are becoming tighter. As states look to better manage and develop their infrastructure in the most efficient manner possible, it is critical that all options to improve both project results and efficiency are considered. Organizations such as the International Standards Organization (ISO) and British Standards Institute (BSI) have created standards such as ISO19650 and PAS1192 to provide guidance for how to best implement BIM. This study begins with an extensive literature review to determine the current state of practice of BIM from an academic standpoint. Semi-structured interviews with industry experts on BIM from those working as academics, architects, contractors, clients, software vendors, and engineers are used to inform a two-round Delphi study. The Delphi study seeks to elaborate on the potentials and barriers of BIM, and to determine the consensus or lack thereof within the overall building industry with respect to BIM. The various industry sectors are found to have poor agreement on the potentials and barriers of BIM, but the potentials are found to outweigh the barriers, aligning with the industry’s increasing adoption of BIM since its creation 20 years ago.