Table 1.

Summary of research questions on building smart spaces and our approach.

Questions	Our approach
Fragmented IoT markets	oneM2M platforms (Mobius and &Cube),
	OID-based device identification scheme,
	Open API Repository, app store for IoT devices
Dynamic programming of smart spaces	TTEO server and smartphone app
Seamless integration with the Web	REST APIs and MQTT messages
Space-specific impromptu services	If-then rules setup and rule-based control
Intuitive user interaction	GUI-based configuration, smart dice use