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Contemporary Application Development. Are Testing Teams and Techniques keeping pace?. Pete Couper AMR & Associates peter.couper@amr.co.nz October 200 3. Question!. How many of you have been in Testing Teams asked to transition from

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contemporary application development

Contemporary Application Development

Are Testing Teams and Techniques keeping pace?

Pete Couper

AMR & Associates

peter.couper@amr.co.nz

October 2003

question
Question!
  • How many of you have been in Testing Teams asked to transition from
    • Mainframe environment, predominantly batch/file based interfaces, to
    • GUI based N-tier solutions with complex realtime integration across bespoke and shrink wrapped systems including integration to legacy systems running in vendor supplied frameworks (eg application server or .NET)?
  • What process changes, training and tools were supplied to help you with this transition?
session outline
Session Outline
  • Contemporary Application Development Defined
  • Contemporary Application Development – Challenges for Testing
  • Some Contemporary Testing Techniques
  • A look at a Contemporary Testing Team
  • Session Summary
contemporary application development defined
Contemporary Application Development Defined
  • Dictionary definition of Contemporary
    • Date: 16311: happening, existing, living, or coming into being during the same period of time2 a: SIMULTANEOUSb: marked by characteristics of the present period : MODERN, CURRENT
  • Often Contemporary Application Development refers to :-
    • Methods, or
    • Tools
contemporary application development defined cont
Contemporary ApplicationDevelopment Defined(cont.)
  • What do I mean by Contemporary Application Development?
    • Method used & Structure of Teams
    • Tools – both Development and Runtime
    • n-Tier, distributed
    • Mix of bespoke, shrink wrapped, legacy
    • Complex integration – sync and async
    • Web Services – internal and/or external
    • Cross organisation business process integration
    • Etc.
contemporary application development defined cont6
Contemporary ApplicationDevelopment Defined(cont.)
  • Emphasis on “Speed to Market” & ROI
  • Less Large Projects
  • Increase in Buy/Build
  • Agile Software Development Methods (XP, SCRUM, FDD, DSDM, ASD etc.)
contemporary application development defined cont7
Contemporary ApplicationDevelopment Defined(cont.)
  • Speed of Technology Change
  • Mix of Technology
  • Service Oriented Architecture (SOA)
  • Enterprise Application Integration (EAI)
session outline8
Session Outline
  • Contemporary Application Development Defined
  • Contemporary Application Development – Challenges for Testing
  • Some Contemporary Testing Techniques
  • A look at a Contemporary Testing Team
  • Session Summary
contemporary application dev challenges for testing
Need fully integrated test environment

Ability to test multiple delivery channels

Changing requirements

Ever Increasing Time Pressure

Contemporary Application Dev. – Challenges for Testing
contemporary application dev challenges for testing cont
Complex test planning

Lack of support for new packages

Faults hard to identify/define

Hard to match Prod. Environment

Contemporary Application Dev. – Challenges for Testing(cont.)
contemporary application dev challenges for testing cont11
Non-functional testing of solution

Environment stability

Testing on incomplete solutions

Access, availability, data & date sync. issues

Contemporary Application Dev. – Challenges for Testing(cont.)
session outline12
Session Outline
  • Contemporary Application Development Defined
  • Contemporary Application Development – Challenges for Testing
  • Some Contemporary Testing Techniques
  • A look at a Contemporary Testing Team
  • Session Summary
some contemporary testing techniques
Some Contemporary Testing Techniques
  • Develop a Test Strategy that
    • Takes an Enterprise Level view of testing
    • Covers all existing Systems
    • Defines “How to” for Projects
    • Includes vendor testing – for both Business-as-usual and projects
    • Covers the Testing Teams involvement throughout the SDLC
some contemporary testing techniques cont
Some Contemporary Testing Techniques(cont.)
  • Test Planning is more complex
    • Multi system, fully integrated, data driven, external interfaces, delivery channels, new packages, mix of technology, multiple vendors, incomplete solution, non-functional testing, etc.
  • Plan to Test early
    • Testers review functional and non-functional requirements specifications prior to sign-off
    • Testers review Use Cases and define alternate flows in Use Cases, again, prior to sign-off
    • Test iterations as they become available
some contemporary testing techniques cont15
Some Contemporary Testing Techniques(cont.)
  • Plan to allow Testers flexibility
    • Testers should be encouraged to follow “hunches”, not simply stick to a rigid script
  • Plan to include Non-functional testing
    • Test the System “-abilities”

(Reliability, Scalability, Recoverability, Availability, Usability, Manageability, Compatibility, even Securability etc.)

  • Include a mix of testing techniques
    • Automated
    • Manual
    • Exploratory
some contemporary testing techniques cont16
Some Contemporary Testing Techniques(cont.)
  • Consider a Risk Based approach to testing
    • Define testing mission
    • Risk Assessment
      • Outside-In – “-abilities”
      • Inside-Out
    • Risk Prioritisation
    • Develop Risk Task List

Aim – “Find the fundamental faults fast”

session outline17
Session Outline
  • Contemporary Application Development Defined
  • Contemporary Application Development – Challenges for Testing
  • Some Contemporary Testing Techniques
  • A look at a Contemporary Testing Team
  • Session Summary
glenford myers quote
Glenford Myers Quote

The design of “good” system test cases requires more creativity, intelligence and experience than required to design the system.

glenford myers quote modified
Glenford Myers Quote - Modified

The design of “good” system test cases requires more creativity, intelligence, technical appreciationand experience than required to design the system.

a contemporary testing team cont
A Contemporary Testing Team(cont.)
  • Test Team is expected to develop a comprehensive Test Plan
  • Faults need to be identified and reported to appropriate vendor
  • Ability to identify and prioritise risks
  • Non-functional testing scripts need to be developed and executed
a contemporary testing team cont21
A Contemporary Testing Team(cont.)
  • Test Teams need Testing Professionals
  • Testing Professionals need to understand technology
  • Business resources added to the Test Team need to be trained and mentored
  • Consider outsourcing technical testing tasks e.g. Test Planning, Performance Testing, Reliability Testing
session outline22
Session Outline
  • Contemporary Application Development Defined
  • Contemporary Application Development – Challenges for Testing
  • Some Contemporary Testing Techniques
  • A look at a Contemporary Testing Team
  • Session Summary
session summary
Session Summary
  • Contemporary Application Development has increased the complexity of software solutions
  • This complexity directly impacts on testing
  • The effectivenessof testers will reduce if they do not change how they approach testing
session summary cont
Session Summary (cont.)
  • Comprehensive Test planning is critical when testing a complex software solution
  • It is vital the Testing Team contains the experience and technical skills required
  • Test Professionals are essential to ensure a quality outcome
  • Testing is a profession in its own right, it needs to be recognised as such
session summary cont25
Session Summary (cont.)

We have Contemporary Application Development

Is it time that it is complemented by

Contemporary Application Testing?

Well I think it is!

the end

THE END

Questions?

references
References
  • James Bach – Satisfice Inc. – www.satisfice.com
  • www.Stickyminds.com
  • “Project Survival Guide” & “Rapid Development” - Steve McConnell
  • Dr. Magdy Hanna – International Institute for Software Testing – www.softdim.com/iist
  • Glenford Myers – “The Art of Software Testing” 1979

To get a soft copy of this presentation go to:-

www.amr.co.nz