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- [Instructor] In this and
the next several videos,

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we're going to present a case study

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for our traveler's
companion translation app.

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So, suppose you're a traveler
and you speak English

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and you're traveling to a
Spanish-speaking country.

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Let's assume you don't speak Spanish

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and that you need to
communicate with somebody

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who doesn't speak English.

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So of course there's tons
of different apps out there

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nowadays that you can carry
around on your cellphone

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that will help you with
just that scenario.

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And what we wanted to do here
was just use this scenario

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as a way to introduce working
with various web services

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provided by IBM Watson

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and also to show you how easy it can be

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to implement an app using
these powerful web services.

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So we're actually going to
work with three Watson services

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as part of implementing this app

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and basically what the app
will do is enable two people

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who speak English and Spanish respectively

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to communicate with each
other in near real time,

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just some delays over the network

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as the English spoken language

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is taken from spoken language to text.

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Then from English text to Spanish text.

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Then from Spanish text into Spanish audio.

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And the audio gets played back.

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And then in reverse,

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we'll do the same thing to
enable the Spanish speaker

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to respond perhaps to a question

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that you might be asking them

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like where is the nearest bathroom.

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So we're going to be combining
those services together

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into what is commonly
referred to as a mashup

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which is simply taking
multiple web services

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and combining them to
perform some greater task.