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Service Oriented Architecture: An Integration Blueprint
Service Oriented Architecture: An Integration Blueprint

Service Oriented Architecture: An Integration Blueprint: For SOA professionals this is the classic guide to implementing integration architectures with the help of the Trivadis Blueprint. Takes you deep into the blueprint’s structure and components with perfect lucidity.

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Service Oriented Architecture: An Integration Blueprint

Chapter 2. Base Technologies

This chapter describes a selection of the base technologies related to the implementation of solutions based on the Trivadis Integration Architecture Blueprint. It will:

  • Cover transactions and transaction strategies

  • Contain a description of Open Grid Services infrastructure (OGSi), a dynamic, hardware-independent software platform

  • Consider Java Connector Architecture (JCA), which is a general architecture for connecting heterogeneous systems

  • Explain Java Business Integration (JBI) as a standardized description of the functions of an Enterprise Service Bus (ESB)

  • Describe Service Component Architecture (SCA) in terms of a model for developing applications and systems based on a Service-Oriented Architecture (SOA)

  • Present Service Data Objects (SDO) as a Disconnected Data Architecture

  • Cover process modeling, including a description of the most important standards for modeling business processes

The base technologies that currently play a role in the implementation of integration...

Transactions


Transactions and transaction strategies play a central role in every architecture. A knowledge of the options available and the differences between them is essential when choosing suitable data access strategies. This section covers the aspects relating to integration. These include transactional systems, isolation levels, two-phase commit, and XA transactions.

  • Transactional systems: These allow for controlled "all-or-nothing" data manipulation.

  • Isolation levels: These levels coordinate data access by parallel transactions and, depending on the level, determine the visibility of the manipulated data. There are four different isolation levels:

    • serializable

    • repeatable read

    • read committed

    • read uncommitted

  • Two-phase commit: The two-phase commit is the algorithm on which transactions are based. It requires all the systems participating in a transaction to commit to the successful completion of the transaction.

  • XA transactions: An XA transaction is a standardized, global transaction...

OSGi


OSGi is a hardware-independent, dynamic software platform that simplifies the process of modularizing distributed applications and their services, and managing them throughout their entire life cycle (Wütherich et al. 2008). The OSGi platform requires a Java Virtual Machine (JVM) and provides a framework on the basis of the JVM. The OSGi alliance (Open Service Gateway initiative) is an industry consortium consisting of a number of manufacturers from different sectors, which originally developed the platform for use in embedded systems. The most important features of OSGi are as follows:

  • OSGi architecture: OSGi defines the following layers as its base architecture:

    • Execution environment

    • Module

    • Life cycle

    • Services

    • Security

    • Applications

  • Component model: The fundamental component model consists of a bundle. In OSGi, bundles are also referred to as services, which are managed in a service registry. However, the concept of a service in OSGi has nothing in common with the concept of a service...

Java Connector Architecture (JCA)


JCA is a general architecture in the Java Enterprise Edition (JEE) environment used to connect heterogeneous systems, such as legacy applications, using a standardized interface in the form of a resource adapter. Agreements (contracts) laid down in the JCA specification guarantee collaboration with other system components (JCASpec 2003).

Uses

Java Connector Architecture (JCA) defines standards for connecting the Java Enterprise Edition platform with heterogeneous, distributed Enterprise Information Systems (EIS). JCA enables EIS to be integrated with application servers and business applications as a result of its developer API and manufacturer API specifications. This guarantees that resource adapters are reusable. The manufacturer of a business application can be certain that the application will communicate in a uniform way with a different EIS. In the same way, the manufacturer of an EIS, which is supplied with a JCA adapter can be sure that the EIS...

Java Business Integration (JBI)


The functionality of an ESB is described in general terms in the Java Business Integration (JBI) specification (Ten-Hove, Walker 2005). JBI implements a component architecture. JBI is based primarily on two constructs: service engines and binding components. The service engines contain the business logic, while the binding components merely act as a proxy for the service users (Wallrab 2005).

The tasks of a JBI component are as follows:

  • Receiving and sending messages. In JBI this is carried out by the binding components.

  • Providing interfaces for format conversions. The converter and the business logic needed to transform messages are referred to as the service engine in JBI.

  • Installing components (binding component or service engine).

  • Deploying components (binding component or service engine).

  • Providing mechanisms for managing the life cycle of a component.

  • Controlling and monitoring components.

Requests from one component to another are decoupled, and take the...

Service Component Architecture (SCA)


Service Component Architecture (SCA) is a collection of OASIS (a non-profit consortium driving the adoption of open standards for the global information society) specifications, which describe a model for developing applications and systems on the basis of an SOA (Edwards 2007). SCA models solutions as groups of service components that provide services and include references to other services. Functionality is made available externally as a service in the form of interfaces. Service components have properties that describe the specific characteristics of the components, and are used to configure them.

Services can be combined to form composites. A composite is a composition of SCA components that belong together. These components represent a coarse granular business function and form a separate, functional, reusable unit. Composite services can also contain components that are only used within these composites. The functionality of these internal components...

Service Data Objects (SDO)


Service Data Objects (SDO) offer a consistent model for managing data, regardless of its source system and source format (Beatty et al. 2003). SDO makes use of a Disconnected Data Architecture. SDO supports the management of data that has been decoupled from its source and transported across different systems and tiers, by subsequently synchronizing it with its source again. SCA and SDO can be used independently of one another, and their specifications have nothing in common. However, a combination of the two specifications represents a powerful and flexible tool for developing distributed applications.

The SDO specification was published jointly by BEA and IBM, standardized as JSR 235, and transferred to the Open Service-Oriented Architecture (OSOA). The current version of the specification is version 2.1 for Java, COBOL, C++, and C (Barber, Edwards 2007).

SDO architecture

SDO consists of data objects, data graphs, and data access services, as shown in the...

Process modeling


One important base technology used in the majority of integration projects consists of business process modeling tools. The modeling process is always done using graphical tools. The Trivadis Integration Architecture Blueprint envisages the usage of graphical tools that support a clearly defined modeling notation. A number of these notations are available. The most important are Event-Driven Process Chain (EPC), Business Process Modeling Notation (BPMN), and Business Process Execution Language (BPEL), which are all explained next:

Event-driven Process Chain (EPC)

The Event-driven Process Chain (EPC) is a model used to represent business processes in an organization, as part of business process modeling (Scheer, Werth 2005). The notation was developed as a part of the Architecture of Integrated Information Systems (ARIS) for modeling business processes, and is a central element of the ARIS concept (Scheer et al. 2006). An example of an EPC is shown in the following diagram...

Summary


Having read this chapter, you should now have a better understanding of the base technologies related to the implementation of solutions based on the Trivadis Integration Architecture Blueprint. You should now be familiar with:

  • Transactions and transaction strategies

  • Open Grid Services infrastructure (OGSi)—the dynamic, hardware-independent software platform

  • Java Connector Architecture (JCA)—the general architecture for connecting heterogeneous systems in the Java EE world

  • Java Business Integration (JBI)—a standardization of the functions of an Enterprise Service Bus (ESB)

  • Service Component Architecture (SCA)—a component model for developing applications and systems based on a SOA

  • Service Data Objects (SDO)—supporting a Disconnected Data Architecture

  • Process modeling and the most important standards for modeling business processes

We have now covered the fundamental concepts and technologies related to the implementation of integration solutions. In the next chapter, you will finally learn...

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Key benefits

  • Discover and understand the structure of existing application landscapes from an integration perspective
  • Get to grips with fundamental integration concepts and terminology while learning about architecture variants
  • Fully comprehend all the individual layers and components that make up the Trivadis Integration Architecture Blueprint
  • Map and compare a variety of different vendor platforms to the blueprint
  • Packed with visual representations of the blueprint in order to help you fully understand its structure and implementation

Description

Service Oriented Architecture (SOA) refers to building systems that offer applications as a set of independent services that communicate and inter-operate with each other effectively. Such applications may originate from different vendor, platform, and programming language backgrounds, making successful integration a challenging task. This book enables you to integrate application systems effectively, using the Trivadis Integration Architecture Blueprint, which is supported by real-world scenarios in which this Integration Blueprint has proved a success.This book will enable you to grasp all of the intricacies of the Trivadis Architecture Blueprint, including detailed descriptions of each layer and component. It is a detailed theoretical guide that shows you how to implement your own integration architectures in practice, using the Trivadis Integration Architecture Blueprint. The main focus is on explaining and visualizing the blueprint, including comprehensive descriptions of all of its layers and components. It also covers the more basic features of integration concepts for less experienced specialists, as well as shedding light on the future of integration technologies, such as XTP and Grid Computing. You will learn about EII and EAI, OGSi, as well as base technologies related to the implementation of solutions based on the Blueprint, such as JCA, JBI, SCA and SDO.The book begins by covering fundamental integration for those less familiar with the concepts and terminology, and then dives deep into explaining the different architecture variants and the future of integration technologies. Base technologies like JCA and SCA will be explored along the way, and the structure of the Trivadis Integration Architecture Blueprint will be described in detail, as will the intricacies of each component and layer. Other content includes discovering and comparing traditional and modern SOA driven integration solutions, implementing transaction strategies and process modeling, and getting to grips with EDA developments in SOA. Finally, the book considers how to map software from vendors like Oracle and IBM to the blueprint in order to compare the solutions, and ultimately integrate your own projects successfully.

Who is this book for?

If you are an IT architect or manager who is responsible for any aspect of operating integration solutions, and you want to learn how to implement integration architectures in practice with the help of the Trivadis Integration Architecture Blueprint, then this book is for you. A comprehensive understanding of SOA is required, though previous knowledge of the Trivadis Blueprint is not necessary. Less experienced specialists who have not yet dealt with integration will benefit greatly from this book by first gaining knowledge of concepts and terminology used in the context of integration architecture, while those already familiar with such expertise can move straight to discovering the base technologies associated with implementing solutions based on the Blueprint, and getting to grips with the Blueprint's structure itself. If you want to assess the solutions from different vendors and ultimately achieve comprehensive SOA integration results using the Trivadis Integration Architecture Blueprint, then this book is ideal for you.

What you will learn

  • Gain real transparency in the confused theoretical world of concepts relating to integration architecture
  • Get to grips with existing application landscapes for integration
  • Master the intricacies of architecture variants like point-to-point, hub-and-spoke, pipeline, and SOA
  • Discover future integration technologies like XTP and Grid Computing
  • Uncover how to implement transaction strategies and process modeling
  • Fully grasp the Communication, Collection/Distribution, Mediation, and Process layers of the Trivadis Blueprint
  • Comprehensively compare traditional and modern SOA-driven integration solutions
  • Implement application systems correctly without losing sight of a high-performance, scalable, and affordable enterprise architecture
  • Map platforms from vendors like Oracle, IBM, and Microsoft to the Blueprint
  • Gain the skills and confidence to successfully integrate your own projects with highly applicable integration knowledge

Product Details

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Publication date : Jun 22, 2010
Length: 240 pages
Edition : 1st
Language : English
ISBN-13 : 9781849681056

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Product Details

Publication date : Jun 22, 2010
Length: 240 pages
Edition : 1st
Language : English
ISBN-13 : 9781849681056

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Table of Contents

5 Chapters
Basic Principles Chevron down icon Chevron up icon
Base Technologies Chevron down icon Chevron up icon
Integration Architecture Blueprint Chevron down icon Chevron up icon
Implementation scenarios Chevron down icon Chevron up icon
Vendor Products for Implementing the Trivadis Blueprint Chevron down icon Chevron up icon

Customer reviews

Rating distribution
Full star icon Full star icon Full star icon Half star icon Empty star icon 3.8
(5 Ratings)
5 star 60%
4 star 0%
3 star 20%
2 star 0%
1 star 20%
ST Aug 17, 2014
Full star icon Full star icon Full star icon Full star icon Full star icon 5
An excellent book explaining SOA from an integration view point. This book must be part of every architects' toolbox!! Don't let the under title full you implying an proprietary integration architecture, Integration architecture explained here is product agnostic. This book lets you uncover the complex details of SOA integration in a plain, clear and a simple way. Timeless content!!
Amazon Verified review Amazon
S. Desai Nov 02, 2010
Full star icon Full star icon Full star icon Full star icon Full star icon 5
I work as an Oracle SOA Architect, I purchased this book and found it extremely useful. The book is easy to follow and explains the Trivadis Integration Architecture Blueprint well.
Amazon Verified review Amazon
Pablo Sancho-Sopranis Jan 15, 2015
Full star icon Full star icon Full star icon Full star icon Full star icon 5
This book is a real treasure for anyone wanting to have at hand a deep but concise Integration Blueprint. The book's authors did really a master job distilling their professional expertise on it. I use it frequently as a reference at the moment of starting SOA/Integration architecture projects, as a base for discussion and an excellent starting point to teach our junior consultants. Specially interesting is the "Trivadis Blueprint" and also their diagramas and models depicting complex integration scenarios in a very compact but precise way. A "must have" book.
Amazon Verified review Amazon
Plumhunter Jul 16, 2016
Full star icon Full star icon Full star icon Empty star icon Empty star icon 3
eh ---- and this stuff is already passe
Amazon Verified review Amazon
XIAODONG WANG Nov 23, 2015
Full star icon Empty star icon Empty star icon Empty star icon Empty star icon 1
It's a useless book!
Amazon Verified review Amazon
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