ISTQB Foundation Level
  • ISTQB CTFL Syllabus 2018 V3.1
  • Author - Magdalena Olak
  • 1. Fundamentals of Testing
    • 1.1. What is Testing?
      • 1.1.1. Typical Objectives of Testing
      • 1.1.2. Testing and Debugging
    • 1.2. Why is Testing Necessary?
      • 1.2.1 Testing’s Contributions to Success
      • 1.2.2 Quality Assurance and Testing
      • 1.2.3 Errors, Defects, and Failures
      • 1.2.4 Defects, Root Causes and Effects
    • 1.3. Seven Testing Principles
    • 1.4. Test Process
      • 1.4.1 Test Process in Context
      • 1.4.2 Test Activities and Tasks
      • 1.4.3 Test Work Products
      • 1.4.4 Traceability between the Test Basis and Test Work Products
    • 1.5. The Psychology of Testing
      • 1.5.1 Human Psychology and Testing
      • 1.5.2 Tester’s and Developer’s Mindsets
  • 2. Testing Throughout the Software Development Lifecycle
    • 2.1. Software Development Lifecycle Models
      • 2.1.1. Software Development and Software Testing
      • 2.1.2. Software Development Lifecycle Models in Context
    • 2.2. Test Levels
      • 2.2.1. Component Testing
      • 2.2.2 Integration Testing
      • 2.2.3. System Testing
      • 2.2.4. Acceptance Testing
    • 2.3. Test Types
      • 2.3.1. Functional Testing
      • 2.3.2. Non-functional Testing
      • 2.3.3. White-box Testing
      • 2.3.4. Change-related Testing
      • 2.3.5. Test Types and Test Levels
    • 2.4. Maintenance Testing
      • 2.4.1 Triggers for Maintenance
      • 2.4.2 Impact Analysis for Maintenance
  • 3 Static Testing
    • 3.1 Static Testing Basics
      • 3.1.1 Work Products that Can Be Examined by Static Testing
      • 3.1.2 Benefits of Static Testing
      • 3.1.3 Differences between Static and Dynamic Testing
    • 3.2 Review Process
      • 3.2.1 Work Product Review Process
      • 3.2.2 Roles and responsibilities in a formal review
      • 3.2.3 Review Types
      • 3.2.4 Applying Review Techniques
      • 3.2.5 Success Factors for Reviews
  • 4 Test Techniques
    • 4.1 Categories of Test Techniques
      • 4.1.1 Categories of Test Techniques and Their Characteristics
    • 4.2 Black-box Test Techniques
      • 4.2.1 Equivalence Partitioning
      • 4.2.2 Boundary Value Analysis
      • 4.2.3 Decision Table Testing
      • 4.2.4 State Transition Testing
      • 4.2.5 Use Case Testing
    • 4.3 White-box Test Techniques
      • 4.3.1 Statement Testing and Coverage
      • 4.3.2 Decision Testing and Coverage
      • 4.3.3 The Value of Statement and Decision Testing
    • 4.4 Experience-based Test Techniques
      • 4.4.1 Error Guessing
      • 4.4.2 Exploratory Testing
      • 4.4.3 Checklist-based Testing
  • 5 Test Management
    • 5.1 Test Organization
      • 5.1.1 Independent Testing
      • 5.1.2 Tasks of a Test Manager and Tester
    • 5.2 Test Planning and Estimation
      • 5.2.1 Purpose and Content of a Test Plan
      • 5.2.2 Test Strategy and Test Approach
      • 5.2.3 Entry Criteria and Exit Criteria (Definition of Ready and Definition of Done)
      • 5.2.4 Test Execution Schedule
      • 5.2.5 Factors Influencing the Test Effort
      • 5.2.6 Test Estimation Techniques
    • 5.3 Test Monitoring and Control
      • 5.3.1 Metrics Used in Testing
      • 5.3.2 Purposes, Contents, and Audiences for Test Reports
    • 5.4 Configuration Management
    • 5.5 Risks and Testing
      • 5.5.1 Definition of Risk
      • 5.5.2 Product and Project Risks
      • 5.5.3 Risk-based Testing and Product Quality
    • 5.6 Defect Management
  • 6 Tool Support for Testing
    • 6.1 Test Tool Considerations
      • 6.1.1 Test Tool Classification
      • 6.1.2 Benefits and Risks of Test Automation
      • 6.1.3 Special Considerations for Test Execution and Test Management Tools
    • 6.2 Effective Use of Tools
      • 6.2.1 Main Principles for Tool Selection
      • 6.2.2 Pilot Projects for Introducing a Tool into an Organization
      • 6.2.3 Success Factors for Tools
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  1. 2. Testing Throughout the Software Development Lifecycle
  2. 2.3. Test Types

2.3.2. Non-functional Testing

Non-functional testing of a system evaluates characteristics of systems and software such as usability, performance efficiency or security. Refer to ISO standard (ISO/IEC 25010) for a classification of software product quality characteristics. Non-functional testing is the testing of “how well” the system behaves.

Contrary to common misperceptions, non-functional testing can and often should be performed at all test levels, and done as early as possible. The late discovery of non-functional defects can be extremely dangerous to the success of a project.

Black-box techniques (see section 4.2) may be used to derive test conditions and test cases for nonfunctional testing. For example, boundary value analysis can be used to define the stress conditions for performance tests.

The thoroughness of non-functional testing can be measured through non-functional coverage. Nonfunctional coverage is the extent to which some type of non-functional element has been exercised by tests, and is expressed as a percentage of the type(s) of element being covered. For example, using traceability between tests and supported devices for a mobile application, the percentage of devices which are addressed by compatibility testing can be calculated, potentially identifying coverage gaps.

Non-functional test design and execution may involve special skills or knowledge, such as knowledge of the inherent weaknesses of a design or technology (e.g., security vulnerabilities associated with particular programming languages) or the particular user base (e.g., the personas of users of healthcare facility management systems).

Refer to ISTQB-CTAL-TA, ISTQB-CTAL-TTA, ISTQB-CTAL-SEC, and other ISTQB® specialist modules for more details regarding the testing of non-functional quality characteristics.

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