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5.2.2.2.2
 
Discover Service Agreement Management Interface 
Next part of the scenario is to use the interface obtained from IpAccess, in step 7 of 
Figure 5-2, to discover the IpServiceAgreementManagement interface. Figure 5-3 shows 
this step. 
Figure 5-3: Establish service agreement - Discover Service Agreement Management interface 
5.2.2.2.3
 
Sign Service Agreement 
Finally, by using the interface returned by IpServiceDiscovery in step 3 of Figure 5-3, 
TMMS PR can sign the service agreement through the IpServiceAgreementManagement 
interface. 

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5.2 TMMS Service based on OSA API: : Design 
Page 68 of 93 
Figure 5-4: Establish service agreement – Sign service agreement 
Now TMMS PR is authenticated and can use the other SCFs provided by the Framework 
which it is authorized to use. 
5.2.3
 
Component view 
Figure 5-5: Component view 
The figure above gives a high level overview of the components of the system. In the 
next two subsections the internal components of TMMS Service will be described. 

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5.2 TMMS Service based on OSA API: : Design 
Page 69 of 93 
5.2.3.1
 
TMMS Client 
Figure 5-6: TMMS Client components 
The TMMS Client has a 
TMmsClient.Communication.Osa
package which contains its own 
implementation, 
OsaMessaging
, of the 
Messaging
interface from the 
TMmsClient.Communication
package. This component is used to communicate with the 
TMMS PR. 
5.2.3.2
 
TMMS Proxy-Relay 
Figure 5-7: TMMS Proxy-Relay components