Seshan Process-Centric Architecture for Enterprise Software Systems

Erscheinungsjahr 2010
ISBN: 978-1-4398-1629-5
Verlag: Taylor & Francis
Format: PDF
Kopierschutz: Adobe DRM (»Systemvoraussetzungen)

E-Book, Englisch, 333 Seiten

Reihe: Infosys Press

IT systems around the world are in the midst of an evolution that is impacting business and technology. The increasing adoption of Business Process Management (BPM) has inspired pioneering software architects and developers to effectively leverage BPM-based software and process-centric architecture (PCA) to create software systems that enable essential business processes. Reflecting this emerging trend and evolving field, Process-Centric Architecture for Enterprise Software Systems provides a complete and accessible introduction explaining this architecture.

The text presents, in detail, the analysis and design principles used in process-centric architecture. Illustrative examples demonstrate how to architect and design enterprise systems based on the business processes central to your organization. It covers the architectural aspects of business process management, the evolution of IT systems in enterprises, the importance of a business process focus, the role of workflows, business rules, enterprise application integration, and business process modeling languages such as WS-BPEL and BPML. It also investigates:

- Fundamental concepts of process-centric architecture style

- The PCA approach to architecting enterprise IT systems

- Business process driven applications and integration

- Two case studies that illustrate how to architect and design enterprise applications based on PCA

- SOA in the context of process-centric architecture

- Standards, technologies, and infrastructure behind PCA

Explaining how to architect enterprise systems using a BPMS technology platform, J2EE components, and Web services, this forward-looking book will empower you to create systems centered on business processes and make today’s enterprise processes successful and agile.

Zielgruppe

Software Engineers, IT Managers, and Application Developers.

Autoren/Hrsg.

Seshan, Parameswaran

Fachgebiete

• Mathematik | Informatik EDV | Informatik Informatik Rechnerarchitektur

Inhaltsverzeichnis

Part I: THE PROCESS-CENTRIC ARCHITECTURE PARADIGM
Introduction
Enterprise Software Systems
Architecture for Systems
Introduction to Business Processes
Activities in Business Processes
Types of Activities
Importance of Business Processes to Enterprise
Process-Centric Architecture—A Quick Introduction

Evolution of IT Architecture
Objectives
Historical Perspective on Enterprise Computing Architectures
Traditional Ways of Supporting Business
Workflows
Packages
Integration
Business–IT Gap

Concept of Process-Centric Architecture
Objectives
The Case for a New Approach
What Is Process-Centric Architecture?
Process Logic Abstraction
Qualities Addressed
Structure
Dynamics
Principles
Integration Concept as Handled in PCA
Workflow in PCA
Holistic View in Architecture
Similar Approaches
PCA in the Context of Other Architectures

Business Process Management
What Is BPM?
PCA and BPM
Business Process Life Cycle
Six Sigma
Lean
Process Redesign
Process Automation
BPMS Products
BPM Landscape
Exercise Questions
Components of PCA
The Business Process Model
Process Layer
Business Logic Elements
User Interface Application Layer

Process Execution
Deployment
Execution
Addressing Integration
Workflow
Business Rules
Flows Handled in a Process

Benefits of Process-Centric Architecture
Business Benefits
Benefits to IT Systems
Scalability of the PCA Style and Approach
Complexity versus Manageability
Raised Level of Abstraction for the IT System

Part II: ARCHITECTING IT SYSTEMS, THE PROCESS-CENTRIC STYLE (DESIGNING PCA)

The Approach
Objectives
A Typical Manifestation of Process-Centric Architecture
Architectural Design in PCA
Re-Architecting an Existing IT System for PCA
Addition of an IT Subsystem to an Existing IT System

SOA for Services
Objectives
Services
Service-Oriented Architecture
Bottom-Up Approach
Need for SOA in PCA
Complementary Approach to Architectural Design
Standards and Technologies
Standards
Process Modeling Standards
Process Execution Standards
Inter-Process Layer Interactions
Business Logic Interaction Standards
Technologies and Tools
Implementation Options

Case Study—Architectural Design Applying PCA
Case Study I
Case Study II

Implementation Considerations
Types of Business Processes
Process Infrastructure
Best Practices
Practicalities in Architectural Design

Each chapter begins with an "Objectives" section and concludes with "Exercise Questions"

Über Autor(innen)

Parameswaran Seshan is a Principal (Education and Research) with Infosys Technologies Ltd., Bangalore, India. At Infosys, he is part of the E-comm Research Labs. He has around 14 years of work experience in the Information Technology (IT) industry as a researcher, educator, architect, and programmer. Before joining Infosys in 2001, he worked as an Advisory Systems Analyst with APL (American President Lines Ltd.), Oakland, California, U.S.A. Parameswaran has also worked as a software engineer with Case Consult (I) Pvt. Ltd., Thiruvananthapuram, India. He holds a Bachelor of Technology (B.Tech) degree in Computer Science and Engineering from the University of Calicut (in 1995). His work experience in the IT industry involved research, programming, architecture, and design.
At Infosys, Parameswaran has been doing research work in the area of Process-centric Architecture, Business Process Management (BPM), Software architecture, and new computing models/paradigms. He has also been teaching architecture and high-end technology courses at Infosys. He was the lead architect for the home-grown Business Process Management System (BPMS) from Infosys and was also actively involved in its design and development. Parameswaran has architected, designed, programmed and supported a number of IT systems over his career as a computer software professional.
Parameswaran is an active researcher. He has published papers at international conferences and other forums. He has worked on joint research works with Microsoft Research India and Researchers from Universities such as Copenhagen University and University of Melbourne in the areas of BPM and Agent-oriented software engineering.
Parameswaran has designed, developed and supported IT systems involving various technologies, at APL. He programmed system tools to automate operations. He also led a team in software development and support projects at APL. Parameswaran programmed system tools based on REXX to automate conversion of programs from one programming environment to another, at Case Consult.
Parameswaran's areas of research interest include software architecture, process-centric architecture, new computing models, intelligent software agents and intelligent systems.