Integrated Service Composition Approach Based on Transparent Access to Heterogeneous IoT Networks Using Multiple Service Providers

Table 2

Comparison of IoT implementations.

Characteristics	Proposed IoT architecture	IoTivity	OCEAN	LWM2M	ThingSpeak	KAA
Device management	Yes	Yes	Yes	Yes	Yes	Yes
Protocol support	HTTP, CoAP	CoAP	MQTT	CoAP	HTTP, MQTT	MQTT
Visualization	Yes	No	Yes	No	Yes	Yes
Integration	REST API	REST API	REST API	REST API	REST API	REST API
Heterogeneity management	Yes	Yes	No	Yes	No	No