BIM to BEM and Interoperability Flashcards
Present the “BIM formula”. Define and explain each component.
BIM (modeling) = BIM (model) + Interoperability.
A BIM model is a digital representation of a physical or functional characteristic of a facility. With the help of the digital model, we can easily inspect our desired knowledge of the facility.
Interoperability means that the model can exchange data between different BIM applications in a smooth workflow.
BIM modeling is the combination of these two, for example: A model of the U-building can be used to investigate how a new room would look using geometrical data in one BIM tool, and how the air flow and heating demand will change using building performance data in another BIM tool.
Define the concept of ‟Interoperability” and provide some examples.
Interoperability is the ability of different systems, devices, applications, or products to connect, communicate, exchange data, and use the information that has been exchanged effectively. It ensures that diverse systems can work together within and across organizational boundaries, enhancing efficiency and enabling better decision-making.
Examples:
Technical Interoperability: IFC (Industry Foundation Classes), A standard file format used for sharing BIM data across different software applications. It enables different BIM tools (like Revit, ArchiCAD, and Tekla) to read and write the same data without loss of information.
Semantic Interoperability:
Ensuring that the meaning of the information exchanged is preserved and understood consistently by all BIM tools and stakeholders.
Cross-Platform Model Exchange:
Scenario: An architect creates a building model in Autodesk Revit, and a structural engineer needs to analyze it in Tekla Structures. The architect can then export to IFC and the engineer export that to Tekla.
What types of digital models are used in different phases of the the construction process
(Model As-Built, etc.)?
Design: Model As-Designed
Construction: Model As-Built
Operation and managment: Model As-Is
Demolition/Reuse: Model Re-Use
How is “LOD” defined and how is it different from the “Level of Information Need”?
LOD (Level of Development): A standardized measure of the geometric detail and accuracy of BIM elements at various stages.
Level of Information Need: A comprehensive framework that defines the specific information (both geometric and non-geometric) required at different stages and for different purposes, ensuring that stakeholders have the necessary data to make informed decisions.
Explain the meaning of “openBIM”? Explain the difference between “openBIM” and
“closedBIM”?
OpenBIM: open standards such as IFC, to enable interoperability
among several disciplines, both for
design and asset management
ClosedBIM: refers to an approach where BIM data is managed within a single software system. In this approach, data exchange is often limited to the tools and formats supported by that system, leading to a more controlled but less flexible environment.
What is an “IFC”? Define and explain at least four other standards developed by
“buildingSMART”.
IFC: Industry Foundation Classes is a standardized, open file format used to enable interoperability and data exchange in Building Information Modeling (BIM).
Model view definitions (MVDs): to favor a specific use or workflow
Information delivery manual (IDM): to describe methodology and to capture and specify processes during the life cycle of a facility
Information delivery specification (IDS): Define the Exchange Information in a computer interpretable way
BIM collaboration format (BCF): Model-based, software independent communication protocols
Provide examples of BIM use in different construction phases.
Design:
Site Planning
Architectural Design
Structural Design
Construction:
Planning and sequencing
Cost-assessment
Life-cycle analysis
Post Construction:
Facility Management
Retrofitting or renovation
What is the meaning of “BIM to BEM”? Provide at least three examples of BIM to BEM applications.
This term refers to the process of utilizing the detailed building information contained within a BIM model to perform energy analysis and simulation.
Application:
Energy Performance Analysis
Daylighting and Natural Ventilation Analysis
HVAC System Optimization
