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6.1
 
Overview 
The OSA Parlay-X Web Services are abstractions built on top of the OSA API, to enable 
OSA applications to be built using web services. This removes the need to map the OSA 
API to different programming languages, such as Java, since web services can be 
accessed through almost any programming language. 
The OSA Parlay-X web services are described in Web Services Description Language 
(WSDL), and the Universal Description, Discovery and Integration (UDDI) standard is 
used to publish the services. When an application has discovered the service it uses the 
Simple Object Access Protocol (SOAP) to invoke it. 
6.2
 
Design 
6.2.1
 
Introduction 
This design is a web service abstraction of the TMMS Service described in chapter 5. The 
TMMS PR implements the necessary Parlay-X Web Service interfaces which are 
consumed by the clients. 
6.2.2
 
Deployment view 
The figure depicts how the service is deployed. The following sections will discuss the 
nodes in the figure. 
Figure 6-1: Deployment view 

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6.2 TMMS Service based on OSA Parlay X Web Services: : Design 
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6.2.2.1
 
TMMS Client 
The TMMS Client is deployed as in the GPRS based solution, as explained in 3.2.2.1. 
Through an IP-CAN it consumes the web service. 
6.2.2.2
 
TMMS Proxy-Relay Web Service 
The TMMS Proxy-Relay Web Service node provides a Web Service interface to the 
TMMS Service. It acts as the TMMS Client in Figure 5-1. 
6.2.2.3
 
TMMS Service based on OSA API 
This is the TMMS Proxy-Relay node as in Figure 5-1.