Enterprise Application Integration. Generated Adaptive Frameworks. with. by Rüdiger Schilling smdelta

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1 Enterprise Application Integration with Generated Adaptive Frameworks by Rüdiger Schilling smdelta

2 Everything Moves...?????? IT fashions and revolutions are passing by IT fashions and revolutions are passing by New technologies are appearing New technologies are appearing Users expectations are shifting Users expectations are shifting Functional needs are changing Functional needs are changing Companies are restructured, merged etc. Companies are restructured, merged etc. While your EA-Systems are growíng... Generated Adaptive Frameworks smdelta Software 2

3 Continuous Growth and Integration First Apps are bought, build, inherited These have to be integrated More Apps are added, some dropped Next integration takes place And so on Generated Adaptive Frameworks smdelta Software 3

4 EAI - Not a Single Process Application integration is not a single process but a continuous task The application we are developing today will have to be integrated tomorrow Integration is not like fixing a bug, it is the development principle of the future All our experiences tell us: This is not the last integration Generated Adaptive Frameworks smdelta Software 4

5 EAI Architecture Most important goal: Prepare applications for repeating integration - since see above: this is not...! Clear, robust modularization - componentizing The principles for this are known for a long time and lead to reliable, (re)usable components Separation of application functions from technical infrastructure The biggest obstacle to problem-free integration of different subsystems is the mixing of these levels Generated Adaptive Frameworks smdelta Software 5

6 The Gauge An Integration Architecture is is only good if if it it is is also good for the development of new systems. Otherwise it is merely a oneway wrapping which will still increase the integration problems in the future Generated Adaptive Frameworks smdelta Software 6

7 (EA) Integration Architecture Based on Reference Models OMG Domains OAGIS (BOD) Others or User-Defined OMG (IDL) OAG (XML) Others or User-Defined Appl. A Appl. A Semantic Syntactic Optimization C Appl. B Semantic Syntactic Optimization D Adapter Adapter Environment (Operating System, Communication etc.) Services (Workflow, Security etc.) E Connector Adapter Generated Adaptive Frameworks smdelta Software 7

8 EAI and Components Components are for composition Components are for reuse [C.Szyperski] Composition and reuse are major issues of EAI Converting applications into sets of well-defined components will allow easy integration now and in future A software component is a unit of composition with contractually specified interfaces and explicit context dependencies only. The less, the better [ECOOP 1996] Generated Adaptive Frameworks smdelta Software 8

9 Feeding the Repository Appl. Private, Inner Interface Appl. A Appl. A Component Repository Description Common, Outer Interface Optimization Rules Semantic Syntactic Optimization Adapter Environment (Operating System, Commun Services (Workflow, Security etc.) Generated Adaptive Frameworks smdelta Software 9

10 Generating the Framework Appl. A Appl. A Middleware Frame Generators Component Frame Semantic Inner Interf. Outer Interf. Component Repository Appl.. A or Proxy (Java, C++, VB) Syntactic Optimization Adapter Environment (Operating System, Commun Optim. Rules Services (Workflow, Security etc.) Generated Adaptive Frameworks smdelta Software 10

11 Component Frame Clients Server CF Appl. Client CF Server Primary Goal: Neutral, stable and reliable component interface (Schema), internal vs. external view Request/Response packaging Interface versioning State/Workspace management (via middleware frame) Generated Adaptive Frameworks smdelta Software 11

12 Component Proxies OO Client CP CP CP Server For OO clients Java C++ VisualBasic Completely generated class definition and implementation Delegation instead of class/interface inheritance Client CF-compatible Seamlessly integrated in client IDE Generated Adaptive Frameworks smdelta Software 12

13 Primary Goal: Less context dependency Linkage to communication middleware OLTP (CPI-C, ATMI,ECI) CORA RMI/IIOP MQS COM Linkage to transaction services IDL generated Middleware Frame Clients Com. Middleware Server MF SCF Appl. CCF/Proxy Client MF Com. Middleware Server Generated Adaptive Frameworks smdelta Software 13

14 Score/Integration Suite Adaptive Frameworks in Practice Input Cobol C(++) Java CORBA IDL Component Manager XML/XSL IDLs Proxies Output MW Frame Component Frame Generated Adaptive Frameworks smdelta Software 14

15 Summary Integration is a continuous task The applications we are building today will have to be integrated tomorrow Base concepts of an EAI architecture are: Proper modularization and separation of application functions from technical infrastructure Adaptive frameworks - a layered concept of frames and proxies repositories and generators help to produce reliable component structures SCORE/Integration Suite of smdelta Software to put theory into practice Generated Adaptive Frameworks smdelta Software 15

16 The Last Page The company smdelta Software Entwicklung GmbH, founded in 1994, is the head of Delta Software Technology group It has its seat in Germany with subsidiaries and distributors in Central Europe Several hundred companies are using smdelta s development tools to build enterprise-wide applications Delta and SCORE are European Trademarks of smdelta Software More information about SCORE/Integration Suite: at Generated Adaptive Frameworks smdelta Software 16

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