A Federated Approach for Interoperating AEC/FM Ontologies

International audienceOver the last few years, the benefits of applying ontologies (semantic graph modelling) for Architecture, Engineering, Construction and Facility Management (AEC/FM) industry have been recognized by several researchers and industry stakeholders. One of the main motivations is because it eases AEC data manipulation and representation. However, a research question that still remains open is how to take advantage of semantic web technologies to interoperate the AEC/FM and other ontologies in a flexible and dynamical way in order to solve data structure heterogeneity problem. Because of this, we propose in this paper to apply a rule-based federated architecture to answer this research question

Application of semantic web ontologies for the improvement of information exchange in existing buildings

Purpose: Facilitating the information exchange and interoperability between stakeholders during the life-cycle of an asset can be one of the fundamental necessities for developing an enhanced information exchange framework. Such a framework can also improve the successful accomplishment of building projects. This paper aims to use Semantic Web technologies for facilitating information exchange within existing building projects. Design/methodology/approach: In real-world building projects, the construction industry’s information supply chain may initiate from near scratch when new building projects are started resulting in diverse data structures represented in unstructured data sources, like Excel spreadsheets and documents. Large-scale data generated throughout a building's life-cycle requires exchanging and processing during an asset's Operation and Maintenance (O&M) phase. Building information modelling (BIM) processes and related technologies can address some of the challenges and limitations of information exchange and interoperability within new building projects. However, the use of BIM in existing and retrofit assets has been hampered by the challenges surrounding the limitations of existing technologies. Findings: The aim of this paper is twofold. Firstly, it briefly outlines the framework previously developed for generating semantically enriched 3D retrofit models. Secondly, a framework is proposed focussing on facilitating the information exchange and interoperability for existing buildings. Semantic Web technologies and standards, such as Web Ontology Language and existing AEC domain ontologies are used to enhance and improve the proposed framework. Originality/value: The proposed framework is evaluated by implementing an example application and the Resource Description Framework data produced by the previously developed framework. The proposed approach makes a valuable contribution to the asset/facilities management (AM/FM) domain. It should be of interest to various FM practices for existing assets, such as the building information/knowledge management for design, construction and O&M stages of an asset’s life-cycle

BFO-based ontology enhancement to promote interoperability in BIM

Building Information Modelling (BIM) is a process for managing construction project information in such a way as to provide a basis for enhanced decision-making and for collaboration in a construction supply chain. One impediment to the uptake of BIM is the limited interoperability of different BIM systems. To overcome this problem, a set of Industry Foundation Classes (IFC) has been proposed as a standard for the construction industry. Building on IFC, the ifcOWL ontology was developed in order to facilitate representation of building data in a consistent fashion across the Web by using the Web Ontology Language (OWL). This study presents a critical analysis of the ifcOWL ontology and of the associated interoperability issues. It shows how these issues can be resolved by using Basic Formal Ontology (ISO/IEC 21838-2) as top-level architecture. A set of competency questions is used as the basis for comparison of the original ifcOWL with the enhanced ontology, and the latter is used to align with a second ontology – the ontology for building intelligent environments (DOGONT) – in order to demonstrate the added value derived from BFO by showing how querying the enhanced ifcOWL yields useful additional information

Information modelling for the development of sustainable construction (MINDOC)

In previous decades, controlling the environmental impact through lifecycle analysis has become a topical issue in the building sector. However, there are some problems when trying to exchange information between experts for conducting various studies like the environmental assessment of the building. There is also heterogeneity between construction product databases because they do not have the same characteristics and do not use the same basis to measure the environmental impact of each construction product. Moreover, there are still difficulties to exploit the full potential of linking BIM, SemanticWeb and databases of construction products because the idea of combining them is relatively recent. The goal of this thesis is to increase the flexibility needed to assess the building’s environmental impact in a timely manner. First, our research determines gaps in interoperability in the AEC (Architecture Engineering and Construction) domain. Then, we fill some of the shortcomings encountered in the formalization of building information and the generation of building data in Semantic Web formats. We further promote efficient use of BIM throughout the building life cycle by integrating and referencing environmental data on construction products into a BIM tool. Moreover, semantics has been improved by the enhancement of a well-known building-based ontology (namely ifcOWL for Industry Foundation Classes Web Ontology Language). Finally, we experience a case study of a small building for our methodology

WiseNET: smart camera network combined with ontological reasoning for smart building management

International audienceVisual sensor networks (VSN) have become a part of our daily life [1] [2]. Based on our experience we have identified two main problems on VSN. Firstly, the problem of selecting relevant information from the huge amount of data given by the network. Secondly, the problem of integrating the information coming from the different nodes of the network, i.e., linking the different informations together in order to take a decision. These problems can be overcome by including smart cameras in charge of extracting the significant information from the scene and by adding contextual semantic information, i.e., semantic information of what the camera observes, building information and events that may occurred. Semantic information coming from different nodes can be easily integrated in an ontology. Our approach differs from standard computer vision, which deals with algorithm improvement [3] [4] and signal processing problems [5], by dealing with a meaning problem in computer vision, where we try to improve and understand what the camera " sees " by adding contextual semantic information. We developed an innovative distributed system that combines smart cameras with semantic web technology. The proposed system is context sensitive and provides knowledge and logic rules in order to optimize the usage of a smart camera network. The main application of our system is smart building management, where we specifically focus on improving the services of the building users. The WiseNET (Wise Network) system consists of a smart camera network connected to an ontological model. The communication between the smart camera network and the ontological model is bidirectional, i.e., the cameras can send information either when the model asks for it or whenever new data becomes available. The ontological model is a semantical one that allow us to express information in our system and to take decisions according to combinations of the different information [6]. The semantical model is articulated in three sections: sensor, environment and application. All the sections are bilaterally connected between themselves by properties and relations. The sensor section consists of a semantic web vocabulary concerning the smart camera, the image processing algorithms and their results [7]. The sensor section is in charge of giving a semantic meaning to what the smart cameras observes, a problem known as semantic gap [8]. The environment section is composed by a semantic web vocabulary regarding the building information model (BIM) [9]. Finally, the application section comprises a set of rules defining some events that may be important for security applications and the different decisions to take according to the occurrence of these events [10]

Implementation of ISO19650 based framework for asset management in logistics centres for a major food retailer

Dissertação de mestrado em Modelação de Informação na Construção de Edifícios BIM A+A relevância da informação tem acelerado a par da importância das profissões que envolvem dados, com a gestão da informação a assumir um papel central. Para a indústria AECO (Arquitectura, Engenharia, Construção e Operações) BIM representa dados (geométricos e não geométricos) e verifica-se, em muitos casos, que os dados originados na construção são pouco ou nada utilizados durante as fases de exploração dos edificios e na manutenção dos mesmos. Com base nesta realidade é de grande importância investigar a gestão de ativos e sua integração com BIM. Esta pesquisa aborda o tema através de pesquisa estruturada quanto á utilização passada e presente da metodologia BIM na gestão de ativos e manutenção. A pesquisa também aponta a questões em torno da implementação da norma ISO-19650 para as indústrias de operações e manutenção, pelo desenvolvimento duma estruturação que identifica e lista os requisitos de informação relevantes aplicáveis (OIR, AIR e EIR), bem como o nível de informação necessário. A revisão de literatura aponta a que há poucos casos de implementação na área da gestão de ativos com recurso a BIM. Verifica-se que os gestores de manutenção e ativos procuram casos de sucesso verificáveis para convencer proprietários e/ou investidores nas vantagens da adoção de BIM. Ao definir os requisitos de informação para a operação e manutenção de ativos utilizando os dados recolhidos no caso estudado, esta dissertação contribuiu para o aprofundar de conhecimento na implementação da referida gestão. Uma vez que a gestão com recurso à integração BIM é ainda nova nas operações e manutenção, há pouca pesquisa verificável no tema, como já apontado. Para melhor percebermos o nível de implementação BIM em operações e manutenção, o autor estudou sistematicamente o processo de gestão de ativos da logística do maior retalhista alimentar em Portugal, SONAE MC. O objetivo desta pesquisa é criar uma estrutura de trabalho para a implementação dum sistema de gestão de ativos baseado na norma ISO-16950 e que será aplicável a um ‘site’ real da empresa. Esta dissertação também procura utilizar a capacidade de visualização e exploração isométrica BIM, dando à equipa de gestão uma nova ferramenta que garante informação geométrica e que permite melhorias no planeamento das intervenções de manutenção, resolução de problemas e uma intervenção que se prevê mais rápida e produtiva. Como parte da implementação da norma ISO-19650 esta dissertação explorou ainda a modelação direcionada à gestão de ativos, pelo estudo da importação e exportação de dados COBie no sistema (CMMS) da empresa (IBM MAXIMO), em paralelo com a integração desses dados COBie num ‘plugin’ de visualização BIM (Autodesk Forge), que foi instalado no ambiente de gestão existente. Este processo permitiu a reengenharia do sistema de gestão de ativos na logística SONAEMC, permitindo um processo único, sequencial, poupando tempo e garantindo uma organização mais eficaz dos dados e exploração dos mesmos no processo de gestão.In recent times, the relevance of information has grown in prominence with roles involving data or information management taking centre stage. For the AECO (Architecture, Engineering, Construction and Operations) industry BIM represents data (geometric and non-geometric). The data from construction has been put to little or no use in the operation and maintenance stage. Based on this proposition it is of great value to investigate BIM-asset management integration. This research approaches the subject by carrying out structured research into the past and present use of BIM methodology in asset management. It also highlights issues around ISO-19650 implementation for the operations and maintenance industry, by developing a framework that promotes the creation of relevant ISO 19650 information requirements documents (OIR, AIR and EIR) and level of information need. The literature review reveals that there is a lack of case study implementations in the area of BIM-asset management. Asset managers generally require verifiable data from case studies to convince building owners and investors to adopt BIM. By defining the information requirements for operation and maintenance using the data collected from the case study, this dissertation has contributed to increased knowledge in BIM- asset management implementation. Since BIM- asset management integration is still new in the operations and maintenance areas, there is little verifiable research on this topic. To understand the status of BIM implementation in the operations and maintenance fields, the author systematically studied the logistics operations asset management process of the largest food and consumer goods company in Portugal, Sonae MC. The objective of this research is to create a framework for the implementation of an ISO 19650 compliant BIM based asset management system, for the case study in which such system will be applicable for a chosen existing facility. This dissertation also aims to use BIM visualization capabilities to provide the asset management team with tools containing both geometric and other asset relevant information and that will allow for improved maintenance planning, better problem solving and faster reactive maintenance response times. As a part of the ISO 19650 implementation process, this dissertation explored subjects on modelling for asset management purposes, importing and exporting COBie data in a Computerized Maintenance Management Systems (CMMS) IBM Maximo. Alongside COBie data integration, a BIM viewer plugin (Autodesk Forge) was installed within Maximo asset management environment. This implementation process allowed the reengineering of the asset management system in Sonae MC, namely simplifying the existing workflow, saving time spent uploading individual asset information and improving the overall information storage and management process.Erasmus Mundus Joint Master Degree Programme – ERASMUS+ European Master in Building Information Modelling BIM A