Transcript Taming Monsters like Daidalos UML and ITU Languages in large Telecommunication projects – including Reliability aspects ISSRE04 WITUL Workshop Rennes .

Taming Monsters like Daidalos
UML and ITU Languages in large Telecommunication
projects – including Reliability aspects
ISSRE04 WITUL Workshop
Rennes . November 2 . 2004
Yongzheng.Liang | Juergen.Jaehnert | Paul.Christ @ rus.uni-stuttgart.de
Telemaco.Melia | [email protected]
RUS
Communication Systems
Goals of our paper and talk
• Overall- Goal: to possibly improve the applicability of UML
and ITU Languages in large ‘modern’ time-constrained
Telecommunication projects such as Daidalos
• to show the present usage of UML/SDL in Daidalos
• to discuss Daidalos in the general and OMG context
• to possibly propose contributions to the OMG and ITU
concerning (testability – only in the paper- and) model
driven adaptability and ‘reactive reliability’ based on
Reflection
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Communication Systems
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The Daidalos Vision is a world in which …
• Mobile users can enjoy a diverse range of personalized
services – seamlessly supported by the underlying
technology and transparently provided through a
pervasive interface
• Mobility has been fully established through open,
scalable and seamless integration of a complementary
range of heterogeneous network technologies
• Network and service operators are able to develop new
business activities and provide profitable services in
such an integrated mobile world
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Communication Systems
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Daidalos Reality
• IST FP6
• STRATEGIC OBJECTIVE 2.3.1.4:
MOBILE AND WIRELESS SYSTEMS BEYOND 3G
• Daidalos - Designing Advanced Interfaces for the
Delivery and Administration of Location
independent optimised personal Services.
• Start 01.11.03 - Duration 24 + Duration 24 + 6 month
• End 31.05.06
• 49 Partners
• ~ 100 people working in parallel
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Communication Systems
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Daidalos Overview (trivial version)
3rdP SP
3rdP SP
WP4 Pervasiveness
WP3 Service Provisioning Platform
WP2 Access Networks
RUS
Communication Systems
3rdP SP
Context
• Location
•…
• Access tech
• Signal Q
•…
• Provider
•…
Mobility
Dynamics
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Daidalos Overview (confusing version)
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Communication Systems
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Example WP 4 - Pervasive Services Enabling Platform
SERVICE
PERVASIVE SERVICE PLATFORM
Security
Config.
User Service Requests
and Advertisements
SC
Rules
& Commands
RC
USRA
user service
context
Personalization
P
Federation/SLA Security &
Pervasive
Service
Platform
Personalization
Privacy
Manag.
Federation/SLA
Rules
Manag.
Federation/SLA
Federation/SLA
Event
Manag.
Pervasive
Service
Management
SEC
Security
Services
USC
ICAPM
Identity, Charging
AAA. & Personal
Mobility Services
RUS
Communication Systems
SRD
Service &
Resource
Discovery
Services
Context
Manag.
MCCS
QoSB
Multimedia Call
QoS Broker
Control Signaling & Services
Session Mobility
Services
NM
Network
Monitoring
Inerface
Federation/SLA
LNI
Location &
Network Information
Services
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Example WP 3 - Service Provisioning Platform
service
discovery UserLocation
service, etc.
service
QoS MultimediaMultimedia AAA, Identity,
security broker CallControl signaling Charging Mobility
services service services services
services
KDC in other
domain, Key
Federation/SLA
Interconnection
QoS Broker
in other
domain
MMSPP
server in
other domain
A4C in
other domain
Federation/SLA
security QoSB
MCC
MS
AAA
KDC
PBNMS
QoS
broker
Service
Discovery
Server
CMS
Federation/SLA
Federation/SLA
Network Info
Federation/SLA
In other domain
MMSPP
AAA in AN
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Communication Systems
Network
info
broker
Home
Agent
A4C
AAA
NI
SD
Service
Provision
Platform
MS
QoSB QoS Mgt security
MIP
NME
NM
NI
AN MMSP AN QoS AR/ Mobile Mobile AR/CR/ER/ AN QoS AN Network
Proxy/CAN Broker CR/ Terminal Terminal Mobile
Broker
info
Corresp. Terminal
ER
Node
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Modelling in Daidalos so far
• Convincing the non-convinced (ongoing)
• Push Telelogic Tau –
• license agreement, training
• Detailed UML/SDL modeling in Terminal Mobility
• Collect all type of input from all parties –
ppt, visio, Rational, EA
• Convert the input to Tau
• 1st Tau integration: 1Workspace, 1project/view-element
• WP-organization-view
• functional-component-view
• scenario-view (“Mobile University”, “Automotive”)
• 2nd Tau integration: 1 Workspace 1project for all =>
inconsistencies become visible
RUS
Communication Systems
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High-level elements of the Daidalos service framework
• Mobility
• Context awareness – Pervasiveness
• Service discovery and composition
• Both operator- and user-orientation
• Heterogeneity both in the technology and provider domain
• Cope with heterogeneity in a technology independent manner
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Communication Systems
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Daidalos standardization context: OMG – ISO/ITU
• OMG e.g. EDOC (Enterprise Distributed Object Computing)
• Joined ISO JTC 1/ITU SC 7 ITU ODP, X.9xx
• CORBA centric
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Communication Systems
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Daidalos context: Adaptability – Reflection - Reliability
• The case for Reflective Middleware – CACM June 2002
• Reflective Middleware Approach to …. Grid Middleware
• Exploiting Reflection in Mobile Computing Middleware
• Multi-Level Reflection for Fault Tolerant Architectures
• Reflection, Self-Awareness and Self-Healing
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Communication Systems
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Daidalos - Integrated Reliability and Adaptability
Reliability
Proactive
…………
Model-driven
Adaptability
Reactive ………….
…………. ………….
Reflective
structural behavioral
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Communication Systems
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Conclusion concerning UML and ITU Languages …
• Address UML/ITU Languages applicability etc. in ‚real‘
projects: large, time constrained
• A small testing and an UML/SDL etc. converged
environment with improved
• semantics and
• treatment of time could support this goal
• (see TTCN-3 below)
• Continue work of Question 17 of ITU-T SG 17 and
ETSI STF 250: UML profile for Communication Systems
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Communication Systems
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Conclusion concerning UML and ITU Languages …
• Evaluate Reflection both in the context of
Reliability and Adaptability as possible extension of the
UML MOF
• evaluate related effort to exploit UML action semantics
to provide Reflection
• Compare/align(?)
TTCN-3-Testsystem_to_SUT
with/to
UML/MOF-based Reflective Architectures
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Communication Systems
WITUL 2004 . November 2 . 2004 . 15
Thank you
Thank you!
Questions?
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Communication Systems
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UML Reflections
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Communication Systems
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