
What is XChange?
Xchange 2025 is buildingSMART Australasia's annual event running over 2 days. It combines a unique technical learning experience on Day 1, and a full day conference on Day 2 featuring a line-up of handpicked speakers who will discuss how Digital transformation and open standards are changing the infrastructure industry. This unique event is a must for anyone working in the infrastructure and construction sector.
Day 1 – Technical Short Course (25th June - 8.30am-6.30 pm*) – what you will learn
Join us at UTS (Building 11- FEIT) for The openBIM with IFC Short Course.
This 1-day series of workshops offers a technical training program covering core buildingSMART technologies and digital workflows applicable to building and civil infrastructure projects.
The course provides an opportunity for subject matter experts to share knowledge and best practice in the concepts and application of buildingSMART technologies.
Attendees receive a Certificate and Digital Badge from bSA in the use of IFC in the AECO industry.
Day 2 – Conference (26th June - 8.30am-6.30 pm*) – what you will hear
Join us at UTS Aerial Function Centre for a full day conference and networking
Presentations and panels covering topics focused on digital transformation in the infrastructure sector and the importance of open standards. Session may include the following:
Keynote: TBA
Updates from Government infrastructure delivery agencies on current digital strategies and the application of open standards
New and upcoming digital standards impacting infrastructure
Best practice presentations on the application of global and local open standards
Initiatives in upskilling industry in Digital Engineering & BIM
Fully catered event including Networking Refreshments
* Each day commences with registration at 8.30am and ends with a networking event (beverages and canapes) from 5-6.30 pm

Speakers
Gavin Cairns - TMR
Department of Transport & Main Roads - Principal Designer - Digital Systems
Gavin has 20 years of experience in civil and structural infrastructure delivery. Gavin has been developing openBIM systems and documentation for road and rail infrastructure since his involvement in TMR’s first BIM pilot in 2014. Gavin is extremely passionate about leveraging openBIM workflows into TMR’s business procedures to meet their client specific Project Information Requirements. Gavin is a lead contributor to openBIM standards for transport infrastructure as part of buildingSMART Australasia’s IFC working groups.
Andrew Curthoys - ABAB
Chair, Australasian BIM Advisory Board
Andrew is Chair of the Australasian BIM Advisory Board (ABAB) an industry and government representative board across Australia and New Zealand. He has extensive policy development experience in BIM and asset management. He recognises the value that digitalisation can contribute in all elements of the design, construction and operations and maintenance phases of infrastructure. He believes it is clear that digitalisation can help significantly in the decarbonisation challenge that government and industry face.
Sandra Lang
Director - Digital Engineering, Systra ANZ
Director, buildingSMART Australasia
After 2 decades in the construction industry in Germany where she was at the forefront of early 3D project initiatives, she transitioned to the transport sector leading on client-side the BIM and Asset Information delivery of the Doha Metro project. She has also been involved in major global transport projects like the UK's High-Speed Rail and the Sydney Metro West and Sydney Metro Western Sydney Airport projects in Australia. As a female with a leading position in a traditionally male-dominated field, Sandra brings diversity and fresh insights to the Board.
With over 30 years of experience in digital transformation, Sandra’s professional journey has been deeply rooted in the international construction and transport industries. She holds a master's degree in Global BIM Management with a specialized focus on openBIM implementation. Currently leading the Digital Engineering team for SYSTA ANZ, she is also an integral part of SYSTRA's corporate Digital Engineering team, leading their Digital Twin innovation stream.
Jon Mirtschin
Director at Geometry Gym
Director, buildingSMART Australasia
Jon brings technical and practical openBIM experience to the buildingSMART Australasia Board, that helps facilitate a stronger awareness and successful adoption of openBIM for clients and projects in Australia. In 2018 Jon supported the buildingSMART Australasia board with organisation and execution of the “openBIM: Getting It Right” technical workshops.
Jon has a proven track record in achieving practical outcomes using openBIM standards and technologies. He has opensourced his C# IFC toolkit for reading and writing IFC files (view on GitHub) and taken a leading role on prototyping technologies such as ifcjson and applying version control such as git to an ifc repository. He is a member of the Building Smart International Model Support Group, providing sample files for the technical documentation and testing proposals for IFC improvements.
Eric Bugeja
Chairperson, buildingSMART Australasia
Principal for Digital Integration and Capability, EIC Activities
Eric has been at the forefront in the application of technology to improve efficiency. His early engineering career was in the development of leading edge automation of manufacturing processes, applying technology to improve quality and speed of manufacturing processes. He was also an early adopter of 3D design and BIM (Building Information Modelling). Following this, Eric worked with a start-up company to transition out of R&D into large scale manufacturing. In the last ten years Eric has transitioned his skills from Manufacturing and applied this knowledge to transport infrastructure engineering and construction. Eric has a passion for technology and driving industry change. Working on the implementation and standardisation of Digital Engineering in Infrastructure, he is currently EIC’s Principal for Digital Integration and Capability supporting the CIMIC Operating companies which include: CPB Contractors, UGL, Leighton Asia, Thiess, Sedgman and Broad.
Holger de Groot
CEO & Founding Director, Modmation
Vice Chairperson, buildingSMART Australasia
Holger de Groot is the CEO and Founding Director of Modmation, having more than 20 years of experience within the AEC industry. As a certified BIM Manager, he has accrued invaluable experience in (building) information management and digital project delivery in Australasia and Europe.
Holger is also the Vice Chairperson at buildingSMART Australasia, registered with the German Chamber of Architects of Lower Saxony (#020262), associate member of the Australian Institute of Architects (#69913) and a sought-after author and regular speaker at high level industry conferences.
Before Holger founded Modmation in 2020, he has led the BIM implementation while employed at HDR as their National Director of BIM for the Australian region, and at Grimshaw Architects as their Office BIM Manager for the Sydney studio, advising on BIM matters at all levels.
Today, Holger’s professional experience in digital project delivery and his technical competence and comprehensive knowledge of BIM allow him to provide advice, support, guidance and resources to clients who need strong information management capabilities.
Dion Moult
Emerging Digital Engineering Manager at Lendlease
Dion has more than 15 years of experience working in open source software and software development. In the past he has been involved with the following open source software projects: Blender, KDE, Gentoo Linux, Radiance, OpenStreetMaps, OpenStreetCam, and FreeCAD.
He has a M. Arch and has worked in large architectural and construction firms. Since August 2019, Dion has had the opportunity to develop the BlenderBIM Add-on. The objective of the BlenderBIM Add-on project is to provide a complete, Native IFC, free software pipeline to replace proprietary software in the architecture, engineering, construction, and facility management industries. Dion is also one of the founders of the Open Source Architecture (OSArch) community. This active community, with more than 1000 members, has a forum, chat group, wiki knowledge base, news site, monthly presentations and training resources, to support an ecosystem of 100+ open source software developed for the AECO industries.
Dr. Julie Jupp
Director, buildingSMART Australasia
Associate Professor, University of Technology Sydney
Dr Julie Jupp is Associate Professor of Digital Engineering at the University of Technology Sydney (UTS) in the Faculty of Engineering and IT. Julie’s research, teaching and professional interests lie in the creation of a smart, resilient and sustainable built environment.
As an interdisciplinary academic, Julie works in the cross-cutting fields of digital engineering that link model-based design and construction with intelligent operations and maintenance, resulting in smart built environments. Research impacts originate from innovative contributions to the theory and praxis of sustainability, with the goal being to advance data-driven processes, and inform the policy and practice of smart property development, construction and operations. As the co-founder and Director of Research for the not-for-profit International Intelligent Building Organisation (IIBO), Julie aims to make a difference and help industry push the frontiers of digital building capabilities. In this role Julie is leading the development of the Intelligent Building (IB) Index, a multi-criteria performance assessment method for measuring the intelligence of smart buildings and precincts. Julie is also an active member of a number of academic and industry committees, including the Technical Education Committee in the Australasian BIM Advisory Board (ABAB), a core member of the BIM Excellence (BIMe) Initiative, SYDBIM Consortium, and Intl. Federation for Information Processing’s PLM Working Group (WG 5.1). In the Faculty of Engineering and IT, Julie is teaching studio-based and industry-engaged courses on Digital Engineering and BIM, including under- and postgraduate subjects in 3D modelling, model-based co-ordination, 4D construction scheduling and simulation, and BIM management. Julie has published in the fields of design science, engineering design, BIM, through-life knowledge and information management, multidisciplinary design optimisation, and artificial intelligence.
Troy Diamond
Technical Support Specialist, Architect, RAIA, Vectorworks Australia
Troy has actively participated in the architectural industry for more than 25 years on projects across Australia and South East Asia. His work in public and large-scale design has involved projects located at some of New South Wales’ most iconic addresses.
The core focus of his design process is to transform abstract ideas into clear narrative – especially in taking cues from nature. He deeply values the innate delight and connective experience brought to architecture through beautifully-detailed materials.
As a part of the team at Vectorworks Inc., Troy seeks to synergise the worlds of software design and professional practice. His focus on detail is expressed by defining workflows for our customers that enable complex and nuanced designs to be brought to life.
Scott Beazley
Digital Technologies Manager at Mitchell Brandtman,
openBIM Consultant at Geometry Gym
After completing a Bachelor or Architecture at the University of Sydney Scott has over 35 years of experience practicing in Architecture and 28 years in CAD-BIM teaching at university and technical colleges. For the past 6 years, as well as his university commitments Scott has worked as a digital technology manager for a leading quantity surveyor helping with validation of models for quantification to derive costs.
Jim Plume
Director and Company Secretary, buildingSMART Australasia
An active member of buildingSMART Australasia for many years and a partner of the working group that drove the development of the current National BIM Initiative, Jim has had a career-long interest in BIM. Starting with a Research Masters during the late 1970s that demonstrated the concept of 3D building modeling technology, Jim’s research in the area saw him offered an academic post at UNSW from 1981-2012. Whilst retired from university teaching, Jim remains an active member of the industry as a current member of the Australian Standards Mirror Committee appointed to a number of ISO Working Groups delivering continual improvement on BIM standards, and the buildingSMART International Infrastructure Committee currently focused on coordinating new work to extend the IFC data schema into the infrastructure space. Jim’s BIM vision is to engage the industry in greater and more effective use of BIM across both public and private procurement in Australia and New Zealand.
Dr Lee Gregory
Director, buildingSMART Australasia
CEO at 12D Solutions
Dr Lee Gregory is the CEO at 12D Solutions. He has been involved with IFCs since working on a joint project in 2005 between Queensland Transport and Main Roads and Queensland Project Services, tasked with looking at applying IFC’s to infrastructure work. Since then, he's been committed to extending IFCs to cover Civil Infrastructure (Civil/ Horizontal BIM). He's attended the buildingSMART International biannual IFC Summits since Singapore in October 2015 (except Barcelona), and in particular, has been active in the Infrastructure Room where the IFCs for Civil BIM are being defined. In this capacity, he was one of the authors of the buildingSMART International paper Model Setup Information Delivery Manual “How to Setup Geo-referencing in a Building or Linear Infrastructure Model”, and has given talks in Australia on this subject.
Lee has been an active member of the IFC Software Implementers Group starting in 2017 with IFC Alignment and IFC Triangulated Irregular Network in IFC 4.1 (in a project with TMR), and continues to this day with IFC 4.3 (currently at RC stage), which will be the first IFC Civil BIM. During this time, he's a founding and active member of Open BIM Alliance, a non-profit Australian organisation dedicated to showing that BIM can work, particularly for transferring data between different software packages. Although BIM and IFCs are well established in the Vertical Building space, there has been a lack of entities, and hence, very little take up for linear infrastructure. Lee is passionate about ensuring that IFC 4.3 is approved and released, and working to ensure that it is taken up by the Civil Industry in Australia and New Zealand.

Venue
University of Technology Sydney (UTS) Aerial Function Centre and Labs

Day 1 is hosted at UTS Computing Labs at the Faculty of Engineering & IT and will close with a networking session. Classes will be capped at 60 participants.

Day 2 will utilise the Aerial Function Centre. Capacity will be approximately 200 attendees based on proposed configuration.

2m x 2m exhibition spaces will be provided amongst the area attendees will have lunch and networking drinks (*no. of spaces to be confirmed and subject to availability).

