This paper provides findings on information requirements of integrated design teams when evaluating retrofit options in immersive virtual environments. The technology was used as a means to better identify the information requirements of integrated design teams to be analyzed as a group. While identifying such requirements, the authors used an immersive environment based iterative requirements elicitation approach. The objective of the research presented here was to identify a generic list of information requirements that are needed to be shared and collectively analyzed by integrated design teams during advanced energy retrofit design review meetings held in immersive settings. The communication of retrofit design alternatives and their energy implications is essential in the decision-making process, as it affects the final retrofit selections and hence the energy efficiency of the retrofitted buildings. Improving energy performance of buildings through advanced energy retrofitting requires a clear understanding of the cost and energy implications of design alternatives from various engineering disciplines when different retrofit options are considered. Industry practitioners can use the findings in deciding on what information to share with integrated design team members during design review meetings that utilize immersive virtual environments.Ībstract = "One of the significant ways to save energy use in buildings is to implement advanced energy retrofits in existing buildings. The information requirements were identified through interactions with sixteen experts in design and energy modeling domain, and validated with another group of participants consisting of six design experts who were experienced in integrated design processes. One of the significant ways to save energy use in buildings is to implement advanced energy retrofits in existing buildings.
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