Technical Report TR/88
Designing an Object Model for ECMA-269
(CSTA)
(June 2004)
With the introduction of TR/85, “Using
ECMA-323 (CSTA XML) in
a Voice Browser Environment,” CSTA has witnessed a strong
adoption in the area of interactive voice services. Software agents,
equipped with speech recognition and synthesis capabilities, are
deployed in call centers to provide automated services. Leveraging
the rich functionality CSTA, businesses are able to offer customers
around the clock services without being limited to office hours
or personnel constraints.
Accompanied with the strong adoption is the demand for simpler
access to CSTA functionality. One such demand for CSTA concerns
the need of CSTA in an object oriented programming style, the
mainstream computer software development paradigm. Although CSTA
has been specified in a manner consistent with an object oriented
design, the CSTA Standard Suite has been exclusively composed
of specifications that make CSTA functionality available in a
service model. ECMA-323
and ECMA-348 specify an
XML based syntax and WSDL for CSTA respectively.
This Technical Report demonstrates how developers can use CSTA
in an object-oriented fashion. To broaden the reach, the TR bases
the discussion on ECMA-335
(Common Language Infrastructure, or CLI) that enables an object
model specification in a platform agnostic and programming language
independent manner. The sheer volume reflecting the rich functionality
makes it impractical to enumerate all the features of CSTA. Inspired
by the success of TR/85, this TR will
focus the discussion in the areas of call control and interactive
voice services where the demand for CSTA object model seems to
be particularly strong. Examples highly parallel to TR/85
are given in ECMA 334
(C#), a member of the CLI family.
The following file can be freely downloaded:
| File name |
Size (Bytes) |
Content |
| TR-088.pdf |
549 898 |
Acrobat (r) PDF file |
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