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Recent Writing

Quality Assurance

2 min read

QA Activity

  • Set quality standards
  • process control
  • testing
  • quality improvement
  • establish a quality assurance system
  • quality assurance plays

Related: Web Api Design for API testing strategies, Best Practice Production for production quality

Testing

Why people make mistakes

  • Pressure to deliver
  • human make mistakes
  • insufficient experience or skills of project participants
  • miscommunication among participants
  • complextiy, code, design architecture
  • misconceptions about interfaces
  • new and unfamiiar tech

cost fixing after release is very high testing is activity to provide new information on quality

Test pyramid

  • Unit

    • Should be applied to anything that could be broke

  • Integration

  • E2E

Overall testing flow

  • Test plan
  • test analysis
  • test design
  • test implementation
  • test run
  • test complete

Testing techniques

  • Equivalence partitioning
    • Split into groups that yield the same results and select representative values among them as test cases
    • Ex: form that 1 - 10
      • Input 5, 0, 11
    • picking one representative values that available in the range values
    • consider also valid and invalid value
  • Boundary Value analysis
    • Ex 8 - 16
    • input are, 7, 8, 16, 17
    • because people often miss > and >=
  • Decision table test
  • State transition test
    • Test whether the software is capable of starting and ending a defined state via a valid or invalid transition

JSTQB FL (Foundation Level) ISTQB huge truck

  • Test is very important to maintain quality
    • unit
    • integration
    • end 2 end
  • We learn 4 different test
    • equivalence partioning
    • boundary value analysis
    • decision table
    • state transition
  • We also need to consider business on testing
  • We need to make sure we passed all the test to prevent a million yen of failure

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