Are you Energy-Efficient? Sense it the WEB Way! Dominique Guinard & Vlad Trifa ETH Zurich / SAP Research 15.01.2009 @ Liip Zurich

Goal Have a systems that monitors, on the device level, the energy consumption of all the devices in the office of Cudrefin02.ch. The system should be: Accessible to the world. Easy to understand/use/install. Should be somewhat attractive. Energy/cost efficient.

Have a systems that monitors, on the device level, the energy consumption of all the devices in the office of Cudrefin02.ch.

The system should be:

Accessible to the world.

Easy to understand/use/install.

Should be somewhat attractive.

Energy/cost efficient.

Hardware / Software

RESTful Thinking (Hype?) SOA WS-* Approach HTTP as transporter. The comp-comp interface is a WSDL. User Interface? Testing: stub generation from a WSDL and lots of SOAP messages. SOA loves XML. An App Server everywhere. Heavy. ROA REST Approach HTTP as service platform! The comp-comp interface is the URL. The UI is the URL/browser. Testing by typing a URL in your browser (doable?) ROA loves JSON. A Web Server everywhere. Less heavy.

SOA WS-* Approach

HTTP as transporter.

The comp-comp interface is a WSDL.

User Interface?

Testing: stub generation from a WSDL and lots of SOAP messages.

SOA loves XML.

An App Server everywhere.

Heavy.

ROA REST Approach

HTTP as service platform!

The comp-comp interface is the URL.

The UI is the URL/browser.

Testing by typing a URL in your browser (doable?)

ROA loves JSON.

A Web Server everywhere.

Less heavy.

RESTful Gateway

Talk to devices: The WEB Way

GWT Interface

Great work! But so what? Energy People want easy and fancy energy monitoring tools. The deployment seemed to influence the office workers. Could be a product soon (CurrentCost, etc.). Architecture For an Internet of Things, SOA is not always the right approach: The Web of Things alternative seems quite interesting: Good for ad-hoc, tactical applications. Mashing up of physical devices. Services become a part of the web, of the cloud.

Energy

People want easy and fancy energy monitoring tools.

The deployment seemed to influence the office workers.

Could be a product soon (CurrentCost, etc.).

Architecture

For an Internet of Things, SOA is not always the right approach:

The Web of Things alternative seems quite interesting:

Good for ad-hoc, tactical applications.

Mashing up of physical devices.

Services become a part of the web, of the cloud.

Ambient Energy in 30 Minutes Dominique Guinard, Vlad Trifa, Thomas Pham