Cohesion Analysis
Determine the module cohesion
1) From the coupling analysis we noticed that the output of the “Survey Form
Class” serves as the input to the “Converter Class” as shown in the
diagram below. The data flow
diagram also shows the same relationship. This clearly indicates that the two
modules are sequentially cohesive module.
2)
In the system the remaining classes are “SurveyC Class” and “Database
Class”. The User Interface Class as the name suggest, it only perform the
User Interface of the system and the Database Class only perform the task of
the database management without any interactions with other classes , since
each of this class contributes to the execution of one and only one
problem-related task they are classified as service cohesive modules
Conclusion
From
the analysis done above, the scale of the cohesion in the Online Survey Data
Management System are ranging from Service Cohesion and Sequential Cohesion
which is a positive aspect of Cohesion as such Cohesion will result in easy
maintenance of the system
Directions
