OW2 A presentation pierre_chatel
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Template v1 Pierre CHÂTEL – Thales Communications The CHOReOS FP7 project and the Future Internet OW2 initiative OW2 Annual Conference November 25 th , 2010
Transcript of OW2 A presentation pierre_chatel
Tem
pla
te v
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Pierre CHÂTEL – Thales Communications
The CHOReOS FP7 projectand the Future Internet OW2 initiative
OW2 Annual Conference
November 25th, 2010
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“Large Scale Choreographies for the Future Internet”
Main goal: sustaining decentralized service choreographies
Specific context: Future Internet (FI), Ultra Large Scale (ULS)
Abstract: “It revisits choreography-centric SOAs by introducing a
dynamic development process and middleware for the
implementation and coordination of services through choreographies”
What is CHOReOS ?
Future
Internet
Ultra
Large
Scale
CHOReOS
In this presentation…
main tenets behind Future Internet and Choreography of Services
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Duration:
October 2010 –
September 2013
Consortium of 15
partners:
7 industrials
8 academics
Total budget:
8.665.785 €
European programme:
Call FP7-ICT-2009-5
Grant n°257178
Further information:
http://www.choreos.eu
CHOReOS at a glance
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Consortium
7 industrials 8 academics
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Help with the next big step in
system architectures
From Context…
…
Interconnected
mainframes
through dedicated
channels
Local networks of
small computers
Future Internet
Ultra-Large
Scale
Highly
Distributed
Systems
High
Heterogeneity
Cloud Computing
Today
Individual
“disconnected”
computers
1980
Internet
revolution
Interconnected
computers
around the globe
Web Services
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The CHOReOS Integrated Dev. & Runtime Environment (IDRE)
…to Framework
Formally grounded
abstractions and modelsChoreography-centric
development process
and runtime
Service-oriented
middleware for the
Future Internet
Governance and V&V
support
Handle high service distributivity
Handle Ultra-Large Scale
Handle high heterogeneity
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CHOReOS
European FP7
OW2 implication
Main concepts
Future Internet
Service Choreography
Cloud
Use Cases
Air Travel Logistics
Others
Table of Content
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“7th Framework Programme for Research and Technological Development”
Bundles all research-related EU initiatives together under a common roof
from 2007 to 2013, € 50 billion budget
Objectives grouped intoSpecific Programmes: Cooperation, Ideas, People, Capacities.
CHOReOS: Cooperation / ICT Programme
Theme: Information and Communication Technologies
Challenge 1: Pervasive &Trusted Network & Service Infrastructures
Objective 1.2: Internet of Services, Software and Virtualization
Outcome: Service Architectures and Platforms for the Future Internet
Positioning inside FP7
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Community building
Collaborative services to project teams
Forge to centralize all developments: including models, UML profiles and code
Dissemination
Through OW2 activities (marketing services, organizing conferences, …)
CHOReOS artifacts published as Open Source Software (LGPL)
OW2 “Future Internet” initiative
“(…) joint efforts by OW2 Members to develop technical integration between projects and business synergies in order to address specific market needs”
grouping of scope-bound projects, CHOReOS is the first in this initiative
will help broaden the spectrum of CHOReOS and facilitate dissemination to a wider community of users and developers
ImplicationOW2
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Orchestra “...solution to handle long-running, Service Oriented
Processes”
JORAM “…distributed MOM… designed with an OSGiTMbased
services architecture to provide a dynamically adaptable messaging server”
Fractal “…a modular, extensible and programming language
agnostic component model that can be used to design, implement, deploy and reconfigure systems and applications”
SOFA “...used for dynamic reconfiguration of component
architecture and for accessing components under the SOA concepts”
Related projects
Identifying synergies with existing projects
OW2
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CHOReOS
European FP7
OW2 implication
Main concepts
Future Internet
Service Choreography
Cloud
Use Cases
Air Travel Logistics
Others
Table of Content
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CHOReOS
European FP7
OW2 implication
Main concepts
Future Internet
Service Choreography
Cloud
Use Cases
Air Travel Logistics
Others
Table of Content
13
OverviewFuture Internet
FP7 / Cross-ETP (European Technology Platforms) vision http://www.future-internet.eu
Future Networked Society
Future Network Infrastructure
Internet
of
Contents
and
Knowl.
Internet
of
Things
Internet
of
Services
Internet
by and
for
People
Accomodation of
all users
requirements
Interactive
multimedia content
everywhere
Context aware
autonomic
objects
Permanent
seamless
services
Scalable & dynamic routing and addressing Security, privacy, trust
Efficient data & traffic management Availability, ubiquity, simplicity
Adaptability to heterogeneous environments Energetic and economic sustainability
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Internet by and for People
Goal: to break the digital divide, by interconnecting growing populations of new users over time; to meet their needs and expectations
Internet of Contents and Knowledge
Goal: to support mechanisms for knowledge dissemination both at local and global level. Knowledge & culture should be distributed worldwide
Internet of Things (IoT)
Goal: to create an universally addressable continuum, with objects as “living beings”. They will have defined behaviors, actions and unique way of individual identification
Internet of Services (IoS)
Goal: to enable internet-scale service oriented computing as the next evolutionary step after components. “Loose coupling” between service consumers and producers (instantiated by the “Cloud” paradigm)
The Four PillarsFuture Internet
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A full-fledged choreography framework should help deal
with specific FI characteristics
CHOReOS manages:
Major characteristics of “Internet of Things”
High heterogeneity: totally different objects in terms of functionality,
technology and application fields
Ultra Large Scale: a unique identifier for every object (Pervasive
technologies) that need to communicate with each-other in a meaningful
way
Major characteristic of “Internet of Services”
Distributivity: numerous service orchestrations, dispatched over the
Internet, that need to communicate through message exchanges, but
without a single point of control
FI & CHOReOSFuture Internet
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CHOReOS
European FP7
OW2 implication
Main concepts
Future Internet
Service Choreography
Cloud
Use Cases
Air Travel Logistics
Others
Table of Content
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In the “real world”
Orchestration:
Local / centralized perspective
"Each player in the orchestra
strictly follows instructions from
the conductor"
Choreography:
Global / distributed perspective
“Dancers dance following a
global scenario, without a single
point of control"
Choreography
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In SOAs
Service orchestration:
Refers to an executable
business process, with a
specific (business) goal
Represents control from one
party’s perspective (the
orchestrator)
Interactions occur at the
message level
Between orchestrator and services
Message sequence controlled by
orchestrator
Allows recursive combination
Orchestrated processes accessible
through WS interfaces
Orchestration of composite WS
Service choreography:
Describes a non-executable
protocol for peer-to-peer
interactions
Legal sequences of exchanged
messages between peers
Tracks the message exchange
among multiple parties
More collaborative: allows each
party involved in the interaction to
describe its part
Guarantees interoperability by
reflecting obligations and constraints
between parties
Interactions still occur at the
message level
But directly between services
Choreography
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Future Internet context:
More and more distributed architectures and systems
Large number of to-be-coordinated services,
Heterogeneity in services, providers
Choreographies to organize services, plan processes
when centralized approaches are inapplicable,
deprecated
Avoid single points of failure
Why ?Choreography
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Overview in SOA
Choreography
Orchestration
WS WS
WS
Orchestration
WS WS
WS
Composite WS Composite WS
(..)
Orchestrator Orchestrator
Message exchange
Message exchange
Complex conversations
beetween orchestrations
Choreography
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Two paradigms [Decker, 2008]:
I. Interconnected Interfaces Modeling: choreography logic split across its
participants through the roles they play, as specified by their interfaces.
II. Interaction Modeling: choreography logic as a workflow, elementary interactions
represent message exchanges between participants
Specifications
BPMN 2
BPSS
Let’s Dance
WS-CDL
WSCI
WSFL
BPEL4Chor
BPMN1.x
Interface (type I) Interaction (type II)
Ind
ep
en
de
nt
De
pe
nd
en
t
Choreography
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BPMN (Business Process Modeling Notation)
“De-facto standard for process modeling on the implementation independent
level” [Decker, 2008], maintained by the OMG
v1.x (2004) follows type I paradigm (Interconnected Interfaces) :
participants = swim lanes (pools), interconnected by message flow, in a
collaboration model
v2.0 (2010) introduces type II paradigm (Interaction):
each step (Choreography Task) involves at least two participants
BPMN specification
Seller
Customer
Order request
Seller
Customer
Order
confirmation
Seller
Customer
Deliver product
Order
Confirmation Product
Choreography
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CHOReOS
European FP7
OW2 implication
Main concepts
Future Internet
Service Choreography
Cloud
Use Cases
Air Travel Logistics
Others
Table of Content
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Goal : enable scalable service provisioning based
on Cloud computing
Well recognized technology for sustaining very large load
ULS we need to support computationally-intensive processes that serve
millions of users issuing thousands of simultaneous service requests
to thousands of services
General idea: Cloud as “another” deployment target
A Choreography is not directly executable
Translation/compilation process multiple corresponding orchestrations
Part of these orchestrations deployed on the Cloud
Implementation: Apache Hadoop
… combined with InteGrade Grid Computing technology
To enable scalability in terms of users, requests, services, choreographies,
and computing nodes
CHOReOS in the Cloud…
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CHOReOS
European FP7
OW2 implication
Main concepts
Future Internet
Service Choreography
Cloud
Use Cases
Air Travel Logistics
Others
Table of Content
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Description
Air transportation / service to passengers
actual coordination proven inefficient during unexpected events
Bad weather at destination flight rerouted to another airport
passengers p.o.v.: stress, lack of information, delays everywhere
service providers differ between airports, flights flexibility need
Choreographies are introduced as part of a global solution
already existing business processes (orchestrations) for specific/local parts
of the scenario, with well-known orchestrators (e.g. air traffic control, airport
authorities, airlines)
lack of broad-spectrum/global choreographies…
between these areas of responsibility
between first and second-level actors (e.g. luggage handling company,
airport information desk, hotels, travel agencies, ground transportation,
passengers, …)
Air Travel LogisticsUC1
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Global choreography
Pilot
Air traffic control
Reroute request
Pilot
Air traffic control
Confirm new
destination
Dest. Airport
Air traffic control
Inform
Destination
airport
Dest. Airport
Security Company
Airport Bus Company
Luggage Handling Company
Prepare for unexpected
arrival
Airline
Air traffic control
Inform
Airline
Pilot
Air traffic control
Confirm approach
Airline
Travel agency
Ground staffGround staff
Prepare for unexpected
arrival
Air traffic control
Pilot
Passenger
Pilot
Air traffic control
Inform
New
arrival
Delay
Passenger
Travel agency
Inform about journey
alterations
Plane will land only when
logistics has been set-up at
destination
Pilot
Passenger
Inform passengers
New info from
ATC
In-flight
information
Passenger
Dest. Airport
Check gatevand transit
on info. displays
Passenger
Ground staff
Inform about local
modalities
(…)
(…)
(…)
(…)
(…)
(…)
(…)
UC1
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A sub-choreography
Airline
Travel agency
Ground staff
Ground staff
Airline
Inform of
unexpected
arrival
Passenger
informations
Travel agency
Airline
Inform of unexpected
arrival
Passenger
informations
Ground staff
Hotels
Book
Ground staff
Ground transportation
Make reservation
Passenger
informationsDestinations
Synchronize with travel
agencies
Ground staff
Travel agency
Obtain hotels list and
update information
Current
information
Available
hotel list
UC1
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Expected impact
Before CHOReOS
At alternate airport
Delays everywhere (plane
logistics, handling passengers
luggage, …)
At airline level
impervious dedicated logistics
for each situation
For passengers
Poor indications
Extra costs
Waste of time
… extra stress !
After CHOReOS
At alternate airport
Less delays in rerouting-
consequences
At airline level
Efficient coordinated logistics
Costs reduction
Improved flight rescheduling
process
For passengers
Better information
Less waste of time and money
Improved airline/brand image
UC1
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Citizen journalism
Collection, report and dissemination of news and information by
the public
interaction among millions of (smart-phone) users who share information
lack of coordination and verification of provided contents and contributions
Dynamically composed large-scale choreographies introduced
for run-time integration of services provided by different users
Mobile-enabled coordination of people requires ULS and QoS-
aware systems in terms of concurrent users
DynaRoute
Mobile-enabled coordination of people
Other use casesUC2 - 3
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Future internet is multifaceted, as are the associated issues and challenges
CHOReOS provides solutions at the conceptual and technical level
Is focused on certain aspects of the FI !
Highlights a coordination paradigm that is both distributed and of higher granularity that orchestrations Choreographies
Choreographies as a core of these solutions, in order to deal with…
Ultra-Large Scale problems
High distributivity of systems & architectures based on services
Heterogeneity of these services
Conclusion
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Address :
Pierre CHATELThales Communications France
DSC/R&T/CEA/SC2
Campus de Polytechnique
1, avenue Augustin Fresnel
91767 Palaiseau Cedex - France
Mail : [email protected]
Phone: +33 (0)1 69 41 55 65
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