Abstract: Generating property keys associated with nodes of a hierarchical graph that defines a topology of a physical space and that is configured to provide user data and sensor data from devices within a physical space. A first property key associated with a first node of the plurality of nodes within the hierarchical graph is received and stored in a property store in association with a first path of the first node. In response to receiving a request associated with determining each property key available to a second node that is a child node of the first node, the first property key is identified as being available to the second node by virtue of the second node being a child node of the first node. The first property key is updated in the property store to also be associated with the second path of the second node.

Abstract: Generating property keys associated with nodes of a hierarchical graph that defines a topology of a physical space and is configured to provide user data and sensor data from devices within a physical space includes modifying the hierarchical graph. Modifying the hierarchical graph includes generating one or more properties keys associated with a first node of the plurality of nodes within the hierarchical graph and receiving a request associated with determining each property key available to a second node that is a child node of the first node. In response to the received request, each of the one or more generated property keys is identified as being available to the second node. Data indicative of generating a new property key associated with the second node is received. Based receiving the data, the new property key is generated and associated with the second node and each child node of the second node.

Abstract: Providing access to sensor data from devices within a physical space includes identifying areas and sub-areas of the physical space. Based on the areas and sub-areas, a hierarchical graph is generated describing a topology of the physical space. A node for each area and sub-area, each device located within the physical space, and each user associated with an area, sub-area, or device is generated. A device associated with a particular area or sub-area is identified. The device includes a sensor generating data. A device node associated with the device is generated within the hierarchical graph. The device node is a sub-node of a node corresponding to the particular area or sub-area. A database that stores sensor data for each device located within the physical space is generated. Sensor data is provided for the device. The hierarchical graph is used to identify the device within the particular area or sub-area, and to identify sensor data corresponding to the device.