In the project ABC, customer requested some changes directly to the development team. Development team made the change without informing Project Manager. When the integration testing was being performed then results were different than what was expected. Which of the following accounts for this problem?
a) Improper scope control
b) Poor communications management plan
c) Poor quality management plan
d) Inadequate training
Any scope changes should be noted down and evaluated to know the impact on different areas. If the scope changes are well known then this type of situation will not occur.