Sir Tim Berners-Lee discusses the principles underlying the Web and the need to protect them in an article from the December issue of Scientific American, Long Live the Web.
“The Web evolved into a powerful, ubiquitous tool because it was built on egalitarian principles and because thousands of individuals, universities and companies have worked, both independently and together as part of the World Wide Web Consortium, to expand its capabilities based on those principles.
The Web as we know it, however, is being threatened in different ways. Some of its most successful inhabitants have begun to chip away at its principles. Large social-networking sites are walling off information posted by their users from the rest of the Web. Wireless Internet providers are being tempted to slow traffic to sites with which they have not made deals. Governments—totalitarian and democratic alike—are monitoring people’s online habits, endangering important human rights.
If we, the Web’s users, allow these and other trends to proceed unchecked, the Web could be broken into fragmented islands. We could lose the freedom to connect with whichever Web sites we want. The ill effects could extend to smartphones and pads, which are also portals to the extensive information that the Web provides.
Why should you care? Because the Web is yours. It is a public resource on which you, your business, your community and your government depend. The Web is also vital to democracy, a communications channel that makes possible a continuous worldwide conversation. The Web is now more critical to free speech than any other medium. It brings principles established in the U.S. Constitution, the British Magna Carta and other important documents into the network age: freedom from being snooped on, filtered, censored and disconnected.”
Near the end of the long feature article, he mentions the Semantic Web’s linked data as one of the major new technologies the Web will give birth to, provided the principles are upheld.
“A great example of future promise, which leverages the strengths of all the principles, is linked data. Today’s Web is quite effective at helping people publish and discover documents, but our computer programs cannot read or manipulate the actual data within those documents. As this problem is solved, the Web will become much more useful, because data about nearly every aspect of our lives are being created at an astonishing rate. Locked within all these data is knowledge about how to cure diseases, foster business value and govern our world more effectively.”
One of the benefits of linked data is that it makes data integration and fusion much easier. The benefit comes with a potential risk, which Berners-Lee acknowledges.
“Linked data raise certain issues that we will have to confront. For example, new data-integration capabilities could pose privacy challenges that are hardly addressed by today’s privacy laws. We should examine legal, cultural and technical options that will preserve privacy without stifling beneficial data-sharing capabilities.”
The risk is not unique to linked data, and new research is underway, in our lab and elsewhere, on how to also use Semantic Web technology to protect privacy.