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Apple develops content indexing and search technology

Apple Computer focusses on search technology, as it develops a new content indexing and search engine planned for Mac OS X 10.4.

During Steve Jobs's keynote presentation for this week's Worldwide Developer Conference, Jobs took the wraps off the new technology, titled "Spotlight", and compared it with the database file system Microsoft has promised for its 2006 Longhorn release.

Noting that Spotlight and Tiger will arrive a year ahead of Longhorn, Jobs quoted one of the promotional banners Apple had hung outside the auditorium: "Redmond, start your photocopiers."

In some respects, Spotlight resembles a capability originally planned for Mac OS 8 under the name "Live Folders." Like that earlier Apple project, it lets users create "smart folders" based on a query against a metadata index of all the mounted drives on a Tiger system.

But the search engine also works contextually within applications such as Apple's Mail, Address Book and System Preferences—and Apple is giving developers at WWDC a software development kit to help them build Spotlight into their own applications.

Every file stored in the Tiger file system will be mined for metadata and indexed accordingly on the fly, making it instantly searchable by keyword. And developers can add their own metadata definitions—for example, searching on "Wi-Fi" within System Preferences causes the network-settings icon to be highlighted.

Apple also previewed a new visual scripting tool for Tiger, called Automator. The script builder, which currently has a library of more than 100 configurable "actions" it can automate within the Tiger OS and current Mac OS X applications, can also be used to build workflows and tie together application events with custom AppleScript and Unix shell-script macros.

Automator can also drive Spotlight searches and act on their results, automating tasks such as sizing and uploading images found with a user-entered search string.

Developers at the show were generally upbeat about the new features, even if they weren't entirely surprised. "Most of this was expected," said Bo Holst-Christensen, a computer scientist with Cutisan Laboratorium A/S of Denmark. "And some of this [like Spotlight] is old Copland material, so it's about time."

Spotlight "will definitely affect the way we handle the development of our next Macintosh version of our software," said one software engineer from a major cross-platform publishing software company who asked not to be identified. He said his company is focusing on leveraging more of the native elements of Mac OS X in future releases of its applications.

But others who build applications across multiple platforms were less enthused. "There's nothing [Jobs] said that really affects us," said Steve Poole, a development manager at WRQ Inc. of Seattle. "We're doing our cross-platform development with Java."

At the same time, Poole noted, "We've had people make Mac OS their primary development platform. I feel crippled when I sit at a PC now."

Source: eWeek

Posted by nakul at June 30, 2004 10:28 PM | TrackBack