Near Term Software Engineering Challenges

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Near Term Software Engineering Challenges
APSEC 2006

• Anand Vaishampayan
• Vice President - Quality and Processes
• IBM Global Business Services Global Delivery

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Have you come across such situation ??
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Have you come across such situation ??
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Have you come across such situation ??
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Agenda

• Introduction
• Current Trends
• Near Term Challenges

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Pain Points in 1986
.. Pain Points Today
Some abstract from John Zachman presentation at
Bangalore, 3rd Nov, 2006
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Introduction
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Introduction
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Software Engineering Classical Definitions

• Discipline of designing, creating, and
  maintaining software by applying technologies and
  practices from computer science, project
  management, engineering, application domains,
  interface design, digital asset management and
  other fields. Ref_SEI_01
• Software Engineering is (1) the application of
  a systematic, disciplined, quantifiable approach
  to the development, operation, and maintenance of
  software, that is, the application of engineering
  to software, and (2) the study of approaches as
  in (1). Ref_IEEE_02

Defining software engineering
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Evolution of Software Architecture Paradigms
Services (SOA)
Whats Next?
Business Process Management
EAI
Message Processing
Remote Object Invocation
Sub-routines Remote Procedure Calls
Monolithic Architectures
Pre 50s - 60s
70s - mid 80s
80s - Mid 90s
Mid 90s to Early 00s
Today
Future
Late 90s
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Service Integration Maturity Model
Dynamically Re-Configurable Services
Composite Services
Virtualized Services
Silo
Services
Componentized
Integrated
Structured Analysis Design
Service Oriented Modeling
Service Oriented Modeling
Grammar Oriented Modeling
Component Based Development
Object Oriented Modeling
Service Oriented Modeling
Modules
Services
Process Integration via Services
Dynamic Application Assembly
Components
Objects
Process Integration via Services
Level 1
Level 4
Level 5
Level 6
Level 7
Level 3
Level 2
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Current Trends - I
From
To

• Function oriented
• Build to last
• Prolonged development cycles

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Current Trends - II
Flexible Business Transformation Business
Process Outsourcing Mergers, Acquisitions
Divestitures
Requires
Flexible IT Cost Containment Greater ROI for IT
dollars Better Use of IT Assets Improved Quality
of Deployed Systems
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Current Trends - III

• Time Compression
• Shortened Product Life Cycles
• Shortened Development Times
• Decreasing Payback Period
• Increased Technology Diffusion
• Increased Product Process Innovation
• Enterprise Integration
• Redefined rules of competition
• Market Requirements
• Business Flexibility

The Challenge Molecule
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Near Term Challenges to Tackle
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Near Term Challenges - I

• How can Estimation be given its Rightful place in
  S/W Engineering ?
• What will Sell vs what will it take to deliver
  ?

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Near Term Challenges - I

• How can Estimation be given its Rightful place in
  S/W Engineering ?
• What will Sell vs what will it take to deliver
  ?
• How can a Services Organisations OSSP be
  consistently customised / mapped to interface
  with customers in-house standards ?
• This also applies to S/W Engineering and
  Lifecycle Tools

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Near Term Challenges - I

• How can Estimation be given its Rightful place in
  S/W Engineering ?
• What will Sell vs what will it take to deliver
  ?
• How can a Services Organisations OSSP be
  consistently customised / mapped to interface
  with customers in-house standards ?
• This also applies to S/W Engineering and
  Lifecycle Tools
• How can there be a reaction to changes in real
  time?
• How to deal with Scope Creep ?
• How to evaluate the impact of a Change Request on
  all the Functional and Non-functional
  requirements?

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Near Term Challenges - II

• How can Quality be Defined, Measured, and
  Guaranteed ?
• Is there anything really called Defect Free
  Software ?
• Guarantee vs Warranty provided by vendors /
  services organisations
• Clients ask for Quantified performance (MTBF,
  Defects/SKLOC, response time, etc.)
• Reliability Models need on-line recalibration
• Impact analysis of scope changes as well as other
  parameters within the organisation
• Intelligent calibration based on intra-project
  performance

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Near Term Challenges - II

• How can Quality be Defined, Measured, and
  Guaranteed ?
• Is there anything really called Defect Free
  Software ?
• Guarantee vs Warranty provided by vendors /
  services organisations
• Clients ask for Quantified performance (MTBF,
  Defects/SKLOC, response time, etc.)
• Reliability Models need on-line recalibration
• Impact analysis of scope changes as well as other
  parameters within the organisation
• Intelligent calibration based on intra-project
  performance
• How can the Risks be accurately Quantified ?

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Near Term Challenges - II

• How can Quality be Defined, Measured, and
  Guaranteed ?
• Is there anything really called Defect Free
  Software ?
• Guarantee vs Warranty provided by vendors /
  services organisations
• Clients ask for Quantified performance (MTBF,
  Defects/SKLOC, response time, etc.)
• Reliability Models need on-line recalibration
• Impact analysis of scope changes as well as other
  parameters within the organisation
• Intelligent calibration based on intra-project
  performance
• How can the Risks be accurately Quantified ?
• Are we really designing, developing and
  implementing reusable assets keeping in mind
  reusability across the enterprise or in a single
  business ?

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Integrated Development Environment

• Source Code Search Engine
• Keyword Search on the WWW.
• e.g. Trim, Comparator, XML, Parse.
• Truly a complete Environment
• Code to Test
• Inbuilt scaled down server.
• In-built Universal test client
• Auto generate test client for any piece of code.
• Outcome Reduced defects

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Managing Complexity of an Enterprise App.
Portfolio

• This slide contained a process and dataflow
  diagram demonstrating an extremely complicated
  interaction among various functions within a
  portfolio of applications, for a Telecom Service
  Provider. Actual diagram has been removed for
  confidentiality reasons.

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Changing Blend of Skills for IT Professionals
A Healthy combination of Business and Technical
skills
Traditional Software Development
Service-Oriented Development
Business Expertise
Business Expertise
Users Define/refine business processes
Users Define/refine business processes
Application Developers Translate business
processes into applications by assembling and
configuring building blocks
Extensive Overlap
Limited Overlap
Service Developers Create application building
blocks patterns, templates, and components
using core technologies
Developers Program applications using core
technologies
Technical Expertise
Technical Expertise
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Merci
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