The real-estate sector has traditionally been thinking in terms of “bricks and mortar” focusing more on the buildings than on the tenants. A change of approach has, however, been detected since the mid 1990s. The tenant is now more in focus. This new situation puts higher requirements on both the individual real-estate manager’s and organization’s ability to determine the needs of the tenants. Evaluations and knowledge management can be a help in this process Post Occupancy Evaluation (POE) is one tool where the tenant’s perspective is in focus. The purpose of this thesis is to study the Swedish real-estate sector’s attitudes and experience of POE. Furthermore the purpose is to investigate how POE can be implemented in the organization and what barriers there are to implementation. This thesis presents three empirical studies of the real-estate sector and their use of POE. The first study is a survey sent to Swedish real-estate managers to determine their attitudes and experience of POE. This study was followed up by a more in-depth interview study to determine the attitudes regarding POE among the real-estate managers. The third study was also an interview study and it was carried out with individuals in leading positions in organizations in the real-estate sector. The aim of this study was to get a clearer view of possibilities for change and barriers to change within the real-estate sector The results show that there is an interest from the real-estate managers towards evaluations but that they rarely carry out evaluations. The main barrier detected is the lack of support from top management and this has resulted in a lack of incentives for realestate managers to work with POE. The reason for this lack of interest from the top management can be the culture of the real-estate sector, a culture which has sprung from the building sector. The conclusion is that problems will not be solved solely by implementing POE. The organisation must take care of the information, share it, learn from it and use it in the best way in current and future projects. This can only be done by implanting a knowledge management system. To enable this kind of change within the organisation the top management must underline the importance of this and at the same time give the organisation both the right tools to enable implementation and incentives to carry this out and follow it through. One way to show the importance of knowledge management, and at the same time create incentives and methods to follow up the development of the organisation is to integrate POE in the Balanced Scorecard. The conclusion is that if the top management doesn’t want the organisation to fall behind its competitors it must put knowledge management on the agenda. Sooner or later the competitors will implement evaluations and knowledge management in their organisations, and then it is only a question of time before they have built a better and stronger organisation, with better-qualified employees, that generates more efficient services and more satisfied customers. / <p>ISBN (invalid): 9197598484</p>

The design and construction of high-performance buildings have emerged as a preferred solution for reducing energy consumption and greenhouse gas emissions. However, sometimes there is a considerable gap between the design performance and the actual performance of the buildings. Post Occupancy Evaluations (POE) provide tools to quantify the performance relative to the occupant's health, well-being, and comfort. POE is getting widely accepted to obtain feedback for various parameters such as water, energy, indoor environmental quality, and occupant comfort. Key Performance Indicators (KPIs) can be derived based on the obtained feedback to determine the performance gaps. POE has evolved to be a robust scientific methodology; however, traditional methods of conducting POE have been proven time-consuming, inconsistent, and inefficient. This research aims to conceptualize the next generation of post occupancy evaluations that leverages cutting-edge technologies such as Building Information Modeling (BIM), Internet of Things based sensors (IoT), Geographic Information Systems (GIS), and digital twins. The key contributions of this research are presented in a series of manuscripts. In the first paper, the gaps in the existing POE were determined by conducting a thorough literature review. The observed gaps were classified in data collection, analysis, and visualization categories. Broader POE definition, spot measurements of parameters, and 2D plans and charts for visualization made the existing POE procedure time-consuming. Using digital twins that combine the geometric and parametric data from BIM models and built-environment data from GIS and sensor measurements were recommended as potential solutions to address the observed gaps. The second paper explored the application of BIM-IoT-GIS integration to conduct POE. Use case scenarios were developed to derive system requirements to host the BIM-IoT-GIS-integrated POE. Four sequential tests were conducted to integrate a BIM model from Revit and sensors' data from Excel with ArcGIS pro that contained the surrounding environment data. Based on lessons learned from the tests, an optimized workflow was recommended that can be used across a variety of projects. The third paper used the BIM-IoT-GIS-integration concept to create a holistic proof of concept for digital-twin-enabled POE. The proof of concept was validated by conducting a digital-twin-based POE on the STTC building on the Red River College campus in Winnipeg. The indoor thermal comfort was visualized within the STTC digital twin developed in ArcGIS Pro. The preliminary energy consumption analysis concluded that the STTC buildings' average energy savings were approximately 70,000 KWH/year. The potential users for digital-twin-enabled POE were presented with a comparison of iv existing POE and digital-twin-based POE over a survey and a focus group discussion. Based on opinion-based feedback, the conclusion can be made that digital twins improve the overall efficiency of POE. The fourth paper recommended the digital-twin-enabled POE procedure for UVic's engineering expansion project. It established the semantics for POE, followed by a digital twin execution plan that can be used for developing a digital twin during each phase (from planning to operations) of the project. Furthermore, the benefits of the digital-twin-enabled POE procedure were demonstrated by comparison with the existing POE procedure relative to the project phases. This study concluded that conducting the POE on the UVic ECS expansion project will enable the researchers to determine the effectiveness of sustainable features by comparing the performance of existing and proposed facilities. In conclusion, BIM-IoT-GIS-integrated digital twins address the limitations of data collection, analysis, and visualization. These digital twins will enable multi-objective analysis and spatial-temporal visualization and provide deeper insights into the way these high-performance buildings function. / Graduate / 2023-05-24