OW2 A presentation pierre_chatel

The CHOReOS FP7 projectand the Future Internet OW2 initiative Pierre CHÂTEL – Thales Communications OW2 Annual Conference Template v1 November 25th, 2010

What is CHOReOS ?“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” Ultra Future CHOReOS Large Internet ScaleIn this presentation… main tenets behind Future Internet and Choreography of Services 2

CHOReOS at a glanceDuration: European programme: October 2010 –  Call FP7-ICT-2009-5 September 2013  Grant n°257178Consortium of 15partners: 7 industrials Further information: 8 academics  http://www.choreos.euTotal budget: 8.665.785 € 3

Consortium7 industrials 8 academics 4

From Context…Help with the next big step insystem architectures Future Internet Ultra-Large Internet Scale revolution Interconnected Highly Interconnected computers Distributed mainframes around the globe Systems through dedicated channels Web Services Individual High “disconnected” Local networks of Heterogeneity … computers small computers Cloud Computing 1980 Today 5

…to FrameworkThe CHOReOS Integrated Dev. & Runtime Environment (IDRE) Formally grounded Choreography-centric abstractions and models development process and runtime Handle Ultra- Handle high Large Scale service distributivity Service-oriented Governance and V&V middleware for the support Future Internet Handle high heterogeneity 6

Table of ContentCHOReOS European FP7 OW2 implicationMain concepts Future Internet Service Choreography CloudUse Cases Air Travel Logistics Others 7

Positioning inside FP7“7th Framework Programme for Research andTechnological Development” Bundles all research-related EU initiatives together under a common roof from 2007 to 2013, € 50 billion budget Objectives grouped into Specific 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 8

OW2 ImplicationCommunity building Collaborative services to project teams Forge to centralize all developments: including models, UML profiles and codeDissemination 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 9

OW2 Related projectsIdentifying synergies with existing projects  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” 10

Future Internet OverviewFP7 / Cross-ETP (European Technology Platforms) visionhttp://www.future-internet.eu Future Networked Society Accomodation of Interactive Context aware Permanent all users multimedia content autonomic seamless requirements everywhere objects services Internet Internet of Internet Internet by and Contents of of for and Things Services People Knowl. Future Network Infrastructure Scalable & dynamic routing and addressing Security, privacy, trust Efficient data & traffic management Availability, ubiquity, simplicity Adaptability to heterogeneous environments Energetic and economic sustainability 13

Future Internet The Four PillarsInternet by and for People Goal: to break the digital divide, by interconnecting growing populations of new users over time; to meet their needs and expectationsInternet of Contents and Knowledge Goal: to support mechanisms for knowledge dissemination both at local and global level. Knowledge & culture should be distributed worldwideInternet 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 identificationInternet 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) 14

Future Internet FI & CHOReOSA full-fledged choreography framework should help dealwith specific FI characteristicsCHOReOS 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 15

Choreography In the “real world”Orchestration: Choreography: Local / centralized perspective  Global / distributed perspective "Each player in the orchestra  “Dancers dance following a strictly follows instructions from global scenario, without a single the conductor" point of control" 17

Choreography In SOAsService orchestration: Service choreography: Refers to an executable  Describes a non-executable business process, with a protocol for peer-to-peer specific (business) goal interactions Represents control from one  Legal sequences of exchanged messages between peers party’s perspective (the orchestrator)  Tracks the message exchange among multiple parties Interactions occur at the  More collaborative: allows each message level party involved in the interaction to  Between orchestrator and services describe its part  Message sequence controlled by  Guarantees interoperability by orchestrator reflecting obligations and constraints Allows recursive combination between parties  Orchestrated processes accessible  Interactions still occur at the through WS interfaces message level  Orchestration of composite WS  But directly between services 18

Choreography Why ?Future Internet context: More and more distributed architectures and systems Large number of to-be-coordinated services, Heterogeneity in services, providersChoreographies to organize services, plan processeswhen centralized approaches are inapplicable,deprecatedAvoid single points of failure 19

Choreography Overview in SOA Choreography Composite WS Composite WS Orchestration Orchestration Message exchange WS WS WS WS Message exchange (..) WS WS Complex conversations beetween orchestrations Orchestrator Orchestrator 20

Choreography Specifications 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 Independent BPMN 2 BPMN1.x BPSS Let’s Dance Dependent WSCI WSFL WS-CDL BPEL4Chor Interface (type I) Interaction (type II) 21

Choreography BPMN specification 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 Order Customer Customer Customer Order Order request Deliver product confirmation Seller Seller Seller Confirmation Product 22

CHOReOS in the Cloud…Goal : enable scalable service provisioning basedon 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 24

UC1 Air Travel LogisticsDescription 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, …) 26

UC1 Global choreography Passenger (…) New info from ATC Air traffic control (…) Passenger Inform Inform passengers Pilot Pilot In-flight information Plane will land only when Air traffic control logistics has been set-up at Pilot destination Air traffic control Dest. Airport Confirm approach Check gatevand transit on info. displays Pilot (…) Passenger Airport Bus Company Luggage Handling CompanyAir traffic control Air traffic control Air traffic control Ground staff Inform Confirm new Prepare for unexpected Inform about localReroute request Destination destination arrival modalities airport Pilot Pilot Dest. Airport New Dest. Airport Security Company (…) Passenger arrival Air traffic control Ground staff (…) Travel agency Prepare for unexpected Inform about journey arrival alterations Inform Airline Airline Airline (…) Passenger Travel agency Delay (…) 27

UC1 A sub-choreography Ground staff Synchronize with travel agencies Available Passenger hotel list informations Ground transportation Travel agency Hotels Airline Inform of Obtain hotels list and unexpected Book Make reservation update information arrival Ground staff Ground staff Ground staff Ground staff Current Passenger Destinations information informations Passenger informations Airline Inform of unexpected arrival Travel agency Airline Travel agency 28

UC1 Expected impactBefore CHOReOS After CHOReOS At alternate airport  At alternate airport  Delays everywhere (plane  Less delays in rerouting- logistics, handling passengers consequences luggage, …)  At airline level At airline level  Efficient coordinated logistics  impervious dedicated logistics  Costs reduction for each situation  Improved flight rescheduling For passengers process  Poor indications  For passengers  Extra costs  Better information  Waste of time  Less waste of time and money  … extra stress !  Improved airline/brand image 29

UC2 - 3 Other use casesCitizen 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 usersDynaRoute Mobile-enabled coordination of people 30

ConclusionFuture internet is multifaceted, as are the associatedissues and challengesCHOReOS provides solutions at the conceptual andtechnical level Is focused on certain aspects of the FI ! Highlights a coordination paradigm that is both distributed and of higher granularity that orchestrations  ChoreographiesChoreographies as a core of these solutions, in order todeal with… Ultra-Large Scale problems High distributivity of systems & architectures based on services Heterogeneity of these services 31

Contact Address : Pierre CHATEL Thales Communications France DSC/R&T/CEA/SC2 Campus de Polytechnique 1, avenue Augustin Fresnel 91767 Palaiseau Cedex - France Mail : pierre.chatel@thalesgroup.com Phone: +33 (0)1 69 41 55 65 32

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