All of sudden, The Internet of Things is set to disrupt the way we live and work. We can talk to a smart thermostat through our cell phone or ask Alexa to adjust lights and even speakers. These technologies certainly light up our daily life. We believe that more exciting things for IoT in buildings are coming. However, a building is more complicated than just a single house or office. When building owners want to reduce energy cost or improve tenants' well-being, how to set u

GIT is a version control system. The definition of version control system is: "a software tool that help a team manage changes to source code/data over time. It can help track of every modification to the code/data in a special database." (Atlasssian 2017) GIT is like a time machine for modelers and developers. If a modeling mistake is made, modelers can turn back the clock and fix the data by comparing with previous version. Of course it has many more important features. An

In many aspects, a building energy model is similar to software: they are systems consist of many many sub-systems, each system has their data categories, levels of details and it interacts with the other systems. Moreover, depending on the size of the system, the workload, and the number of stakeholders can be scaled up significantly. Lastly, both of them need to go through a rigorous testing process to optimize their performance. With all these complexities, model version c