As final considerations, in accordance with the authors’
experience, the use of functional sizing metric in
development projects is still difficult due to the amount of
data for tracking, lack of integration between processes and
techniques, and difficulty of understanding and use of the
processes, techniques and tools. These difficulties must be
added to the usually existing problems, as those originating
from requirements analysis, configuration and change
management, implementation and tests. So we hope that our
proposal can be used in an effective manner to help to
accomplish successful software projects.