Service-orientierte Architekturen (SOA): Die Brücke zwischen Business und IT

Transcription

1 -orientierte Architekturen (SOA): Die Brücke zwischen und IT Gregor Engels 2. Round Table SOA / SaaS 20. Januar 2009 CEA v6.4 That s my life Professor Software Engineering and Information Systems, University of Leiden (NL) since 1997 Professor Information Systems, University of Paderborn (D) - Research Topics: MDA, UML, DSL, SOA, OSS, SPL, SQA - currently 20 PhD students, > 200 scientific publications since 2005 Chairman of the Board of Directors, s-lab (Software Quality Lab), PPP-institute, University of Paderborn, Industrial Partners since 2005 Scientific Director Capgemini sd&m Research Informatics Europe, Member of the Founding Board Member of ACM, IEEE, GI, EASST 2 1

2 Innovation as result of cooperation between research and industry Research foundations ( pro-active ) application-oriented ( re-active ) Technology Transfer win-win cooperations with industry Teaching concepts skills practice-oriented 3 Innovation as result of cooperation between research and industry Research foundations ( pro-active ) application-oriented ( re-active ) Technology Transfer win-win cooperations with industry Teaching concepts skills practice-oriented 4 2

3 That s my life Professor Software Engineering and Information Systems, University of Leiden (NL) since 1997 Professor Information Systems, University of Paderborn (D) - Research Topics: MDA, UML, DSL, SOA, OSS, SPL, SQA - currently 20 PhD students, > 200 scientific publications since 2005 Chairman of the Board of Directors, s-lab (Software Quality Lab), PPP-institute, University of Paderborn, industrial partners since 2005 Scientific Director Capgemini sd&m Research Informatics Europe, Member of the Founding Board Member of ACM, IEEE, GI, EASST 5 Capgemini sd&m stands for powerful, comprehensive process and software solutions that bring competitive advantages to our customers Customers Our customers are both well-known companies in all industries and organizations whose success depends on sophisticated process and software solutions They benefit from increased competitiveness thanks to Differentiation of business critical solutions Improved efficiency of existing solutions Offerings Process and IT consulting Development of tailored software solutions Implementation and roll-out of standard software System integration Competences Implementation oriented consulting Management of complex IT projects Software engineering Design of sophisticated IT architectures Implementation of SAP solutions Rightshore TM Research & innovation Close working relationships with customers Offices Hamburg Hannover Berlin Dusseldorf Cologne/Bonn Frankfurt Walldorf Stuttgart Munich Zürich Capgemini sd&m sites Additional Capgemini Group sites Company development Nearshore Wroclaw Farshore Mumbai Bangalore Plan SAP Solutions sd&m Capgemini sd&m 1 Number of employees in the business incl. Poland and dedicated team in India 6 3

4 From Software Architectures to Enterprise Architectures Enterprise Architecture Architecture Goals Organization Processes Gap between and IT How did we try to close this gap In the past? IT Architecture Software Architecture Infrastructure Architecture 7 Monolithic Applications Functionality Functionality Application A Application B 8 4

5 -based Software Architecture Functionality Functionality Functionality Functionality Application A Application B 9 Enterprise Application Integration (EAI) Middleware connecting applications Middleware Functionality Functionality Functionality Functionality Application A Application B 10 5

6 Application spanning s Functionality Functionality Functionality Functionality automated process control flow 11 Orchestration by Interpretation of Process Models Process part Process Model Orchestration Engine Functionality Functionality Functionality Functionality automated process control flow isolated automated process control flow 12 6

7 /IT-Alignement by Adaptation of Process Models Process part Process Model Orchestration Engine Functionality Functionality Functionality Functionality automated process control flow isolated automated process control flow 13 -oriented Architecture (SOA) Quality Objectives: correct flexible adaptable reusable efficient +/- Gap between and IT SOA Bridge Orchestration Engine Functionality Functionality Functionality Functionality automated process control flow isolated automated process control flow 14 7

8 Intermediate Conclusions -orientation looks like a promising approach to bridge the gap between and IT ( /IT-Alignment ) IT vendors offer (only) technological support Most important question: How to find the right services? We need a method for developing service-oriented architectures! 15 A Method for Developing -Oriented Architectures Role of Capgemini sd&m Research dig-out best practices and generalize SOA Method Projects Development of tailored software solutions Implementation and roll-out of standard software System integration roll-out and teach 16 8

9 Hotel- Einkäufer -Laptop (HEL) Hotelleistung übergeben L (Datei ) Hotel -Einkaussystem (HES) Hotelleistung Produkt Adapter Individualreise - Konfigurator (IRKO) L (ESB) Produkte definieren Plausibilität prüfen Preise berechnen Reiseportal (REPO) xxx xxx x xxx xx xx xx xx xx x xc xxx x xx xx xx c xxx Reisebüro - Verkaufs -Client (Buchungsdialoge ) (RVC) Hotel - Regulierungssystem (HRS) Planung Planungssystem (PLA) Hotel - Verfügbarkeitssystem (HVS) (FES) Flugleistung Kontingente Verfügbarkeit prüfen übergeben Ressource belegen Adapter Adapter VK-Preisberechnungs - system(vps) Preise Adapter Buchen Vakanzprüfungs -und L Buchungssystem (VBS) Daten-Kopier -System (DKS) D (DB#2) Hotelleistung Planung Reiseauftrag Reiseauftrag Flug-Einkaufs - und Verfügbarkeitssystem Verfügbarkeit prüfen Ressource belegen Virtuelles Lager (VILA) L (ESB) Leistung buchen Adapter Individualbuchungs - prozess L (ESB) (IBPR) Buchen Kundenmanagement (KUMA) L (ESB) Kunde pflegen Kunde Rechnungs - erstellungssystem (RES) Kunden - dokumentesystem (KDS) A Method for Developing -Oriented Architectures Quasar Enterprise -oriented Design of Application Landscapes Based on best practices of IT consulting and development projects Holistic view on business and IT Complete Method Evaluated and refined in numerous customer projects Step 1: Understand the business Step 3: Evaluate As-Is Application Landscape Step 4: Develop target application landscape IT Step 2: Design ideal application landscape As-is From As-is to Target Ideal architecture oriented at oriented at 17 A Method for Developing -Oriented Architectures Quasar Enterprise -oriented Design of Application Landscapes Roadmap within Integrated Architecture Framework (IAF) Uniform understanding of notions (Ontology) Methodical building blocks, design rules, design patterns Reference architectures, evolution scenarios IT Information system (IS) Techn. Infrastructure (TI) IDEAL Target As-Is contextual (why?) strategy IT strategy conceptual (what?) I architecture II Domains and (application) services Technical services logical (how?) physical (with what?) ( services, processes, objects, Organisation, etc) Logical ALcomponents with interfaces Physical ALcomponents with interfaces III Logical application- and Integration platforms Physical application- and Integration platforms IV V I From strategy to business architecture III Integration V Evolution II From business architecture to ideal application landscape IV Integration platforms 18 9

10 The running example Christopher Columbus Travel (CCT) fictitious travel agency sells package travels and (individual) custom travels 19 Example Fix elementary business services Notation: UML-like Use Case Diagram 20 10

11 Example Domains with associated categorized application services CCT TRA INT CCE Sell custom travel Compose custrom travel PLA PUR PCT Recommed resource BOK SRV Select resource Check plausibility Compose custom offer Book custom travel PPT RSM Check Availability Book resource CUM Maintain customer ORM Maintain travel order ACC REP PER Legend YYY domain xxx application service.. of category interaction.. of category function.. of category process.. of category data 21 Example Final application landscape components 22 11

12 Conclusions Challenges of -oriented Architectures Holistic view on business and IT Complexity, scalability Heterogeneous cultures, languages, skills Design with an open-world assumption Managed evolution from legacy as-is application landscapes towards service-oriented application landscapes 23 References Quasar Enterprise G. Engels, A. Hess, B. Humm, O. Juwig, M. Lohmann, J.-P. Richter, M. Voß, J. Willkomm Quasar Enterprise: Anwendungslandschaften serviceorientiert gestalten dpunkt Verlag 2008 (in German). G. Engels, M. Assmann -Oriented Enterprise Architectures: Evolution of Concepts and Methods In Proc. of EDOC Enterprise Computing Conference 2008, Munich, IEEE Computer Society, pp. XXXIV XLIII, G. Engels; A. Hess; B. Humm; O. Juwig; M. Lohmann; J-P. Richter; M. Voß; J. Willkomm A Method for Engineering a true -Oriented Architecture In Proc. 10th International Conference on Enterprise Information Systems (ICEIS 2008), June 2008, Barcelona (Spain), ICEIS (3-2), , A. Hess, B. Humm, M. Voß, G. Engels Structuring Software Cities - A Multidimensional Approach In Proceedings of the 11th IEEE International EDOC Enterprise Computing Conference, Annapolis, Maryland, USA, pp IEEE Press,

13 Questions, Suggestions? Please contact Prof. Dr. Gregor Engels Capgemini sd&m AG: University of Paderborn: