Classic Template - Blue

1
Trends in Software Development Systems
Integration
By R.K. Pillai February 2, 2008
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Overview

• Brief History of Computing Technology prior to
  1960
• Events and Progress in 60s, 70s, 80s 90s
• Evolution of Software Development
• Progress in the New Millennium
• Introduction to Emerging Technologies

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Brief History of Computing Before 1960

• Boolean Algebra - George Bool
• Charles Babbage and his Machine
• Holerith - Punch Cards
• Von Newman - Computer Architecture
• Turing Machine Magnetic Recording
• Analog Computers using Vacuum Tubes
• First Digital Computer for Business Use
• Programming Languages Assembler, FORTRAN COBOL

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Events Progress in 60s

• Scientific Computers IBM 1620 7044
• Business Computer IBM 1401
• Integration of Business Scientific IBM 360
  Series
• Development of Advanced Operating Systems File
  Management Systems
• Multi-programming Time Sharing OS
• Initial Database Concepts such as Hierarchical,
  Networking and Relational
• Batch Processing Operations
• Mathematical Modeling Simulation

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70s

• Dominance of Mainframe Computers
• IBM VM 370 Virtual Machines
• Large Scale Software Development
• Introduction of Transaction Processing Systems
  IBM CICS IMS
• IBM Software De-bundling
• Introduction of Structured Programming
• SDLC Methodology
• Software Quality Initiatives

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70s

• Intel 4004 - First Micro-processor
• Introduction of Unix based Mini-computers
• Birth of Microsoft Oracle Corporations
• Development of Micro-Computer Operating Systems

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80s

• Dominance of Relational Database Model
• Growth of Large Database Oriented Transaction
  Processing and Batch Processing Systems
  COBOL/DB2/CICS
• Use of Third generation Languages RPG
• Software Development Process Creative Art or
  Engineering a Product
• Increased Systems Failure Due to Software Bugs

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80s

• Development of Personal Computers Based on Intel
  8086, 80286, 80386
• Growth of PC OS DOS, MSDOS Windows
• Introduction of Office Automation Products Word
  Processing, Spreadsheet PC Database
• Acceptance of Mainframe, Mini Micro-computers
  in stand alone mode in business
• First use Graphical User Interface (GUI)
• Establishment of TCP/IP and HTTP Protocols
• Global Use of World Wide Web among Universities
  and Research Institutions

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80s

• James Martin Published - Software Engineering
  Methods, Three Volumes
• Model Based Application Development
• Logical Data Model Physical Database
• Entity Relationship Diagram (ERD)
• Normalization to Third Normal Form
• Process Model to capture Business Rules
• Computer Aided Software Engineering Tools (CASE)
• Graphical User Interface Design tools
• Automated Code Generation, Compilation
  Implementation of On-line and Batch Programs

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90s

• Continued use of CASE Tools for Large Software
  Engineering Projects
• Introduction of Object Oriented Analysis, Design
  Development C / C, ODBC, OLE, JDBC
• Evolution of Microsoft Platforms for Business
  Operations
• Innovative Releases of Windows 95 98 OS
• Emergence of LAN WAN Networking
• Popularity of JAVA and related technologies for
  Software Engineering
• Growth of Data Interface Technologies - COM,
  DCOM, CORBA SOAP
• Prolific Growth of Internet Users .com web
  sites
• Introduction of XML Technologies

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90s.

• Realization of Y2K Problems
• Massive Y2K Systems Corrective Effort
• Introduction of Enterprise Resource Planning
  (ERP) Solutions led by SAP, Oracle, Siebel,
  PeopleSoft and others
• Development and wide spread implementation of
  Supply Chain Management Systems (Manugistics, I2)
• Start of the Open Source Revolution Linux

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New Millennium

• Uneventful Passage of Y2K Storm
• DOT COM Bubble Burst
• Wide Spread Adoption of ERP Systems Replacing
  Legacy Applications
• Acceptance of Microsoft Solutions for Small and
  Medium Size Applications
• JAVA Based Solutions for Scalable Response Time
  Critical Applications
• Introduction of .NET J2EE Development Framework
  for Application Development
• Increased Level of Distributed Database
  Applications
• Integration of Legacy Application Web Interface
• Increased use of Internet Security Related
  Products
• Emerging Technologies Social Networking

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Software Engineering Evolution

• Prior to 60s
• Machine Language Assembly Language
• In 60s
• Use of High Level Languages
• COBOL, FORTRAN, ALGOL
• Mostly Batch Processing, Sequential File Very
  Little Direct Access
• In 70s
• Prolific growth of On-line Transaction Processing
  using
• COBOL/CICS/IMS
• Need for Structured Programming
• Issues with Software Quality
• Evolution of Software Development Life Cycle
  Methods

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Software Engineering Evolution

• In 80s
• Concept of developing Software as Engineered
  Product
• Rapid Application Development using IE
  Methodology, CASE Tools and Relational Databases
• Failed later due to its enormous Learning Curve
  and Rigid Data Model
• In 90s
• Object Oriented Approach in software development
• Emergence of strong development platforms
  Microsoft Others
• Growth of C JAVA Technologies
• Popularity of ERP alternatives - SAP etc
• Growth of Internet Technologies
• New Technology emerges every ten-twelve years
• Emerging Technologies Service Oriented
  Architecture (SOA) Virtualization

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Emerging Technologies

• Service Oriented Architecture (SOA)
• SOA in simple terms is an approach or Methodology
  for Integrating XML, Web Services and Related
  Technologies in an Efficient and Standardized way
  to harness Information Technology services for
  successful Enterprise Business Operations.

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Emerging Technologies contd.

• SOA is
• A Technical Architecture
• A Business Modeling Concept
• A Piece of Infrastructure
• An Integration Service
• A New way of viewing Units of Automation with in
  the Enterprise
• SOA will lead to Standardized Infrastructure
  supplemented with Strategically Positioned XML
  and Web Services Technologies

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Emerging Technologies contd.

• Virtualization
• It provides a way for infrastructure,
  applications, operating systems, presentation
  layers, virtual machines to be separated from
  each others but also work together.

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QA