After this comes the analytics tier; this takes the organized data and processes it. Finally, there's the end-user tier, the application that the end user actually sees and interacts with. This may be an enterprise application, a Web app or, perhaps, a mobile app.
If you're looking to build an Internet of Things application, the last two tiers are the ones you're most likely to have to work on, according to Frank Gillett, a principal analyst at Forrester. "As a developer, you're unlikely to have the tools for dealing with the edge devices or gateways, or capabilities suitable for the ingestion tier anyway."
That's why it usually makes more sense to build an application on top of a ready-made "Internet of Things platform," Gillett adds. These platforms usually include an ingestion tier that carries out time-series archiving for incoming data, as well as an analytics tier, thin provisioning, activation and management capabilities, a real-time message bus, and an API to allow communication between the platform and applications built on top of it.
A large number of new companies offer these sorts of platforms. They include Xively, Mnubo, Bug Labs and ThingWorx , and they have the capability to communicate with a range of "things" produced by a large number of manufacturers.
More established companies such as Microsoft, with its Intelligent Systems Service, and enterprise software vendors likes SAP, with its Internet of Things Solutions, are also adding Internet of Things capabilities to their offerings.
"We are likely to see some of these companies acquired by the likes of Oracle and other enterprise software vendors in the future," says Gillett, "but I think that many of these specialized (Internet of Things) platforms will endure for particular industry use cases."
Building IoT Platform From Scratch 'Considerable Amount of Work'
California-based OnFarm used ThingWorx's cloud-based Internet of Things platform to develop its Web-based farm information application. This collects data from a variety of connected things, such as soil moisture sensors, and integrates it with data from other sources, such as weather information providers. It then presents the information on a customizable dashboard to its farmer customers.
OnFarm CEO Lance Donny briefly considered hiring developers to build an Internet of Things platform from scratch, but the idea was quickly rejected. "That would have been a considerable amount of work. Building our own back end would have slowed us by about one or two years," he says. "We would be significantly behind if we had done that."
By using ThingWorx to manage all the data ingestion, he says the amount of programming work was largely reduced to creating the Web dashboard that connects to the data through ThingWorx's APIs.
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