Piece in ASRNews....

A piece we wrote for the ASRNews newesletter came out earlier this week. Here it is reproduced. Please consider subscribing to the newsletter. It's chock full of must know information.

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Back to the Future: Bleeding-edge IVR

Imagine this: every Saturday morning, the first thing you do even before you fully open your eyes is to reach for your cell phone, fling it open, press the "9" key, press the "Call" button, place the cell phone against your ear and engage an Interactive Voice Response (IVR) system as follows:

System: Hi there! The last four digits?
You: 0817.
System: Ok. Hang on. Your balance is $5,235 dollars and 23 cents. Anything else?
You: No.
System: Great. Goodbye.

At which point you would flip your cell phone shut and then rollback to sleep. The whole interaction would have taken you between 20 and 30 seconds, no more.

Compare this to getting your information from the web. If you are like us and you use a desktop at home, it means you would have had to get out of your bed, walk to the room where the desktop is, turn the computer's monitor on, click on the tab that points to your bank's login page, type the login credentials, and then navigate to where your checking balance is displayed. After that, you log out from the account and bring the browser down (to minimize any security risks), switch the desktop's monitor off, shuffle back to your bed, and finally get back to sleep. At the best, it would have taken you between 4 and 5 minutes.

What if you had a laptop? Well, maybe you would be able to shave a minute or so off, but only if you had the laptop nearby and it was connected to the Internet (which probably means that you have WIFI at home).

What if you had a PDA (Blackberry, Palm, iPhone, etc.)? You wouldn't have had to get up from your bed, right? Yes, but have you tried navigating the Internet with any of those devices? At best, it is less than a gratifying experience, but usually it is downright painful. The iPhone has made great strides over its other PDA competitors in the display of web pages, but it took a step backward in information entry: it is relatively easier to type with a Blackberry or a Palm than it is with an iPhone. "Relatively easier," because typing with the Blackberry or the Palm is no trivial skill to acquire.

So, then, it turns out that the most cutting edge technologies (desktops, laptops, PDAs) do not compare well at all with our humble phone when it comes to the simple task we described above.

What does it tell us? Simply that IVR technology is here to stay. It is here to stay because for certain tasks, it can do the job cheaper, more quickly, and require less effort on the part of the end user, than any of the most cutting edge communication technologies out there today.

But then you ask: so why do people hate IVRs? Why do they groan and shake their head in dismay when they realize that they are about to interact with a machine over the telephone?

The answer is simple: because most IVRs are atrociously designed. The interaction we described above is not your typical exchange between a user and an IVR system. Your typical IVR would have greeted you with some 30 seconds of chest-thumping messaging about the company, followed by some mindless instructions, such as, "For English, press 1," or "Please listen carefully as our menu options have changed;" would have listed a long menu of options, would have required you to select the "check balance" option, then the "checking account" option, then would have required you to enter your full checking account number, then, for security purposes, a pin, and only then would have finally given you the balance. A grueling 3 or 4 minutes would have gone by – and you would have had to get up from your bed and retrieve your checking book, unless you were so organized as to have the checkbook near by, or had committed to memory your 14-digit checking account number – etc!

So, what did it take to have the IVR system we described initially to behave as it did?

Here are the keys to its effectiveness: (1) it recognized who the caller was, (2) it knew that they were calling to retrieve their checking account balance, (3) it did not waste time talking, but said only what it needed to say, no more, and (4) it let the caller speak back their answers.

Can this interaction be implemented with today's technology? Absolutely. With the caller ID and the last four digits of the caller's checking account (easy to memorize, especially if you are calling once a week), the user can be identified and validated, and the checking account balance retrieved and spoken back to the user in a matter of seconds. With some intelligence in the back-end (a simple Naïve Bayesian algorithm would amply do), the system can quickly learn by itself that every Saturday morning, this particular customer will call to ask for their checking balance. With that knowledge, the system can adapt its interaction to shorten all of its verbal prompts to the bare minimum (e.g., "The last four digits" rather than "The last four digits of your checking account number"), ask only for the information needed to accomplish its task, and then execute that task. And with the current state of Speech recognition, letting the user speak back the last four digits of their account and say "No" are trivial tasks.

There is no reason, then, why every IVR system deployed out there today cannot be as effective as the one described above. Give the people a system that helps them, that solves their problem without wasting their time, and they will use it and love it every time.

Dr. Ahmed Bouzid heads the Partnerships program at Angel.com. Dr. Weiye Ma is an independent speech consultant. They are authors of the VUI Post blog at http://www.thevuipost.com/