Fun with DSL (Domain Specific Languages) How to create a Cortana / Siri like assistant for our applications.

1. with
Domain Specific Languages
How to create a Cortana / Siri like assistant for our applications
Pedro Ramírez Scio Consulting

3. The pieces
• A UI that recognice what the user said or free textbox
entry
• A language that the user uses and the assistant
understand
• A grammar
• A parser
• A translator

4. What
is a
DSL?
How to implement a DSL?
There are many tools to build DLSs, for .Net some of them are:
• Visual Studio
• Irony.Net
• Boo language
• ANTLR
For this demo I use Irony.Net, Irony.net allows us to define the
grammar and provides a parser that we use to then translate
the expression entered by the user in to a SQL query.
A domain-specific language (DSL) is
a computer language specialized to
a particular application domain. This
is in contrast to a general-purpose
language (GPL), which is broadly
applicable across domains, and lacks
specialized features for a particular
domain.

5. Voice
or
Speech
recognition?
How to implement what we need?
For our purposes, we need speech recognition rather than
voice recognition, we need to translate the user words into
text that can be used by the parser so we can “understand”
what the user said.
We can implement speech recognition in a few ways, for web
apps the two most common are:
• Using native windows libraries (System.Speech), this is can be
used by desktop and web apps.
• For web applications(our case), we can use
webkitSpeechRecognition in javascript
Mobile applications can use native libraries, like the ones for
Windows Phone 8
Speechrecognition is the
translation of spoken words into
text.
Voice recognition refers to
identify the speaker, not what they
are saying.

6. How it
Works?

7. Questions?
Useful links:
Source code
https://github.com/pedro-ramirez-suarez/ScioAssistant
Irony .Net
https://irony.codeplex.com/