Software Production Changing Landscape

1
Software Production Changing Landscape

• VIT Alumni Conference
• Bangalore, June 27, 2004
• S Sadagopan ss_at_iiitb.ac.in

2
Lecture Overview

• Changing landscape of software development
• Tools for development
• Role of India
• What holds for the future
• Summary

3
Software Development

• Functions to components
• Computers to appliances
• Computer networks to network as computer
• Projects to products to productized services
• Web services
• Software as service

4
Programming is changing

• Programming for self (math)
• Programming for friends, community (Bell Labs)
• Programming for someone out there (Infy
  Reebok)
• My specification to client specification (Digital
  Compaq)
• Project to product (Linux, Oracle, SAP R/3,
  Delphi)
• Todays demands to tomorrows dreams (Xbox)
• Artisan to architect

5
Functions to Components

• Subroutines (FORTAN)
• Functions procedures (Pascal, c)
• Libraries, Packages (c, c, Java)
• API (MFC, JFC)
• Components (Java Beans, COM components), CLR
• Domain-specific (EJB)

6
Computers to Appliances

• Macro-processors (Mainframes)
• Master-slave (Terminals)
• PCs
• Client-server computing
• Computing Communication Entertainment
  (multimedia)
• PDA, Cell phone, Palm, 3G, iPOD, MP3 Player,
  Digital camera, MPEG devices, Fridge

7
Computer network, network is the computer and
computer as network

• LAN / WAN / Network O/S, Netware, Unix,..
• TCP/IP, HTTP, HTML, Browser, Web - universal
• Write once, deploy anywhere open system,
  cross platform, Java
• Scripting, plug-in, applet, servlet
• Client server, 3-tier, n-tier, middleware,
  application server (IBM, BEA, Sun, Pramati)
• Software to information industry

8
Projects to products to productized services

• Customizable product software
• Enterprise software (ERP, SCM, CRM)
• Consulting, implementation services
• Configuring, customization services
• Integration services
• Development to system integration

9
Web services - XML

• XML - Message-based RPC
• XML is to structure what HTML is to content
• It is NOT a language
• Extensibility is the key
• Knowing XML is NOT that useful knowing what you
  can do with XML is most useful
• mathXML, ChemXML, ebXML, XML for chess, music

10
Web services - SOAP

• Object based universal protocol SOAP
• Object orientation is the key
• XML as payload SOAP as the envelope
• Applications over Net become a reality

11
Web services - UDDI

• Service description discovery UDDI
• Way to publish discover
• Provides for intermediaries
• Discovery is automatic

12
Web services

• Message-based RPC XML
• Object based universal protocol SOAP
• Service description discovery UDDI
• Web services as a way to deliver software
• Creates an ecosystem of software services
  developers, mediators, buyers, value-added
  retailers

13
Software as a Service

• Usage-based charging model (utility)
• New form of 3-tier (generation, transmission,
  distribution) with Grid in between
• Internet as grid devices as distribution
  appliances, service providers as generation,
  middleware as transmission
• New form of software services
• Architecture at the core of construction (J2EE
  .Net as possible architectures)

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Impact

• Software construction process is maturing
• There is a paradigm shift in the process
• Architecting will be a key source of
  competitive advantage for countries like India
• Skill-sets would be different Value chain will
  undergo transformation Like hardware system
  software, application software too will get
  layered
• Challenges for software companies are increasing!

15
Role of tools

• Mature industries use tools heavily
  construction, manufacturing also trades develop
  plumbing, electrical wiring.. Software is no
  exception
• Tool companies are not the kings but they are the
  king makers

16
Role for India

• Code for the world
• Beyond Intel Inside is India Inside telling
  example SAP Application, Pramati Middleware,
  Oracle DBMS, c compiler, HP-UX O/S, Wind River
  RTOS, HP Server, Intel Microprocessor, TI DSP,
  Motorola Devices, Siemens / Honeywell
  controllers, Device drivers, Synopsys / Cadence
  ECAD, Applied Materials machines for Intel
  Foundries
• Developer Nation!

17
What holds for the future

• India will be the outsourcing destination
• Unless we raise the bar competition will steal
  under the carpet
• Tool mastery (not nodding acquaintance) alone
  will protect YOUR jobs (and OUR dollars)

18
Summary

• A great time to be a developer in India
• Will the lucky generation leave behind a
  luckier generation behind for their children?
• THANKS and ANY QUESTIONS?