Which of the following characteristics of good testing apply to any software development life cycle model?

The characteristic that applies to any software development life cycle model is that for every development activity, there is a corresponding testing activity. This concept underscores the need for integrated testing throughout all phases of software development. It ensures that testing activities are aligned with development phases, allowing for early detection of defects, verification of requirements, and validation of functionality. This principle is fundamental because it promotes continuous assessment of the software, improving quality and reducing the likelihood of significant issues arising later in the development process.

While other statements present specific scenarios, they may not universally apply to all software development life cycle models. For instance, not every model mandates acceptance testing as the last level, and the involvement of testers can vary based on the model. The planning and completion of all test levels for each feature is also contingent on the model guidelines and project requirements, making it less universally applicable. Therefore, the correspondence between development and testing activities is a foundational principle that supports effective quality assurance across various methodologies.