Gartner Research

Use Layered Testing to Enable Continuous Delivery of Digital Business Capabilities

Published: 14 November 2016

ID: G00317416

Analyst(s): Sean Kenefick


Technical professionals responsible for continuous delivery must shift testing earlier in the development process by maximizing and reusing isolation tests, minimizing the use of hard-to-maintain GUI tests, and exploiting mock and service virtualization technologies.

Table Of Contents


  • A Layered Approach to Testing
  • First Things First: Ensure Agreement About Functionality and Acceptance Criteria
  • The Benefits of Isolation Testing
    • Testing Development Objects in Isolation
    • Mimicking Unavailable and Difficult-to-Access Functionality
    • Working in Parallel on Dependent Functionality
    • Find System Performance Issues
    • Prototyping and Brainstorming Ideas
  • Unit Testing
  • To Mock or Not to Mock
  • Integration and Functional Testing
    • Separation of Concerns
    • Service Virtualization
    • Test Data
  • System Testing
  • Form Factor Testing
  • Strengths
  • Weaknesses


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