Unexpected Long-Term Illness Influences Test Effort in Most Projects

c. The quality of the information used to develop the tests. The quality of the information used to develop tests has a direct influence on the test effort involved in most projects. High-quality, clear, and accurate information allows for the creation of better test cases, leading to more thorough testing and ultimately, higher quality software. When the information used to develop tests is poor or incomplete, it can result in increased effort to clarify the requirements or gaps in test coverage. This could lead to increased time spent on testing, higher costs, and potential delays in the project's schedule. While the other factors mentioned can impact a project, they do not have as direct of an influence on the test effort itself: a. Geographical separation of tester and developers can impact communication and collaboration, but it does not inherently impact the test effort involved in a project. b. The departure of a test manager during the project can result in temporary disorganization and potential delays, but it does not directly affect the test effort required for the project. d. Unexpected long-term illness by a member of the project team can create resourcing challenges and potential delays, but it does not have a direct influence on the test effort needed for the project.