In terms of how effective it is to scale back some systems and deliver a 50% test version, this would be Ineffective.
The original question asks how effective it will be to request a scale back if one can't meet a deadline.
This would be ineffective because the project is expected to be completed at a certain time so asking to only complete 50% would not be an effective solution to completing the project.
Find out more on project deadlines at https://brainly.com/question/15092325.