Integrating UAVs into the Cloud Using the Concept of the Web of Things

Table 1

A comparison between pull model and push model for requests and data exchange.

Pull (AJAX)	Push (Comet)
Sends requests frequently to the server	Sends the data when an event occurs
Client workload	Server workload
Suitable for requesting the current value	Suitable for getting notifications of event occurrence
Suitable for monitoring slow/continuous changes	Suitable for monitoring sudden/intermittent changes
Fast changes require low time intervals	Requires client subscription to an event