Ubuntu Ditching Menus, to Feature Command Line Shortcuts

[nsane.forums]

Canonical will outfit the next release of its Ubuntu Linux OS with a new type of interface that will allows desktop users to execute functions for any program through a command line interface, or by voice command.

The new interface, called the Head-Up Display (HUD), "will ultimately replace menus in Unity applications," said Canonical founder Mark Shuttleworth,in a blog post announcing the technology. The first version of HUD will be part of the Ubuntu 12.04 Long Term release (LTS), due in April.

Unity is the Ubuntu's standard shell, or desktop interface. HUD provides an overlay that sits on top of the desktop. When the translucent HUD console is evoked, the user can type in any number of keywords to find a specific function, bookmark or file. The command line, in effect, acts as a search engine for individual application resources. Using autocomplete, it will speed access time in subsequent uses. Any program that is written to work with the Unity global menu will work with HUD.

HUD came about as a way to address shortcomings of traditional application menus. They can slow down power users in a number of ways, Shuttleworth said. They also require a lot of reading to find one function and they force users to remember arbitrary hotkeys for specific functions. And they can categorize functions into ambiguously defined and confusing top-level menus.

HUD offers a number of advantages over standard menus, Shuttleworth said. It can do fuzzy matching to help users find commands when they don't know the exact words to evoke. A few words that describe the command may be enough to locate that function. HUD will also keep track of the most frequently used commands and offer those more readily.

Lastly, and perhaps most importantly, it will be outfitted to work with voice input. "We want to make it easy to talk to any application, and for any application to respond to your voice. The full integration of voice into applications will take some time. We can start by mapping voice onto the existing menu structures of your apps. And it will only get better from there," Shuttleworth wrote.

HUD even works with the Unix native command line, allowing HUD actions to be scripted and included in pipes, the technique of connecting the output from one Unix utility to the input of another.

HUD is not an entirely new idea. Giving the user a command line interface to quickly call up specific functions has already been implemented in a number of applications. Unix text editors such as Vim and Emacs have long featured the technology. Mozilla offers a command-line console, called Ubiquity, for the Firefox browser. Apple's OS X has a similar feature where users can autocomplete a command from within a program itself. HUD, however, is advantageous in that it can offer the same basic interface for all the applications on a desktop, minimizing the learning curve for individual applications.

Shuttleworth contrasted HUD with Microsoft's Ribbon interface, first introduced in Microsoft Office, which also tackles the problem of making unwieldy menus easier to navigate for users. While the ribbon made commands easier to spot, it also takes up a lot of space on the screen, which can be a distraction. In contrast, HUD shows "users just what they want, when they want it," Shuttleworth said.

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[DKT27]

Ubuntu has announced a change to their version of Linux that ought to get hot key junkies and voice control enthusiasts alike to raise their heads with glee.

Ubuntu 12.04 will introduce a new Heads-Up Display for interacting with the operating system in April, wrote Ubuntu founder Mark Shuttleworth. The HUD will allow you to "express your intent" with the operating system and the programs running on it, wrote Shuttleworth.

Currently, it's activated by hitting the Alt key, which opens a translucent box into which you can speak or type your commands. As you start to type the word Firefox, for example, the predictive menu will pull up launching Firefox as an option.

More than a streamlining of how the menu looks, though, Ubuntu 12.04 also will have extensive voice command support. This Vocabulary User Interface, or VUI, is going to let you control Ubuntu by speaking to it. Shuttleworth explained some of the benefits as including fuzzy matching, where imprecise commands are matched to user intent; "smart" learning so the operating system can prioritize habitual behavior; and it will work with the system itself as well as the focused app. This last one means that the VUI is designed to let you go offline in Skype, or change your instant message status, through the HUD because, "those apps all talk to the indicator system."

"When you've been using it for a little while it seems like it's reading your mind, in a good way," he wrote.

If Ubuntu 12.04 remains on schedule, the HUD will land on April 26.

His blog post is lengthy and worth reading for the way it details how the purpose of menus has driven their development. He also explains how he sees menus naturally transitioning to a VUI, even in traditional use cases like corporate environments. The VUI, he says, not only allows people to control their program by voice, but it also can learn repeated behaviors, thus making it computer use more productive.

Some of the innovations Ubuntu has attempted have suffered setbacks, he acknowledged. The biggest one being that it hid the menu structure before the replacement was ready.

Shuttleworth cautioned that there was still work to do on the HUD. Things like the secondary aspects of menus, the lack of discoverability, and other patterns of interaction have yet to be mapped.

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