Harmonization of Tools and Techniques for System Development

Nengak Iliya Sitlong, Francisca Ogwuleka Nonyelum
2020 World Journal of Innovative Research  
 Abstract-This article looks at the similarities between the two most common system development tools, Data Flow Diagram DFD and Unified modelling Language UML diagrams. It explored the intricacies of the function of notations and meanings of the symbols used in the two modelling tools by pointing out the similarities and contrast between them, then subsequently established facts of how the two modelling tools can be blended together to leverage a combined benefits of the two modelling tools
more » ... o modelling tools as an entity in system development process. The research also put side by side the techniques for process modelling which includes interview, questionnaire, survey group and observation. Hence, it provided detailed analysis to justify when one can be preferred over another and made further recommendation on the most efficient model to adopt during process modelling. The article chose as a case study a coach system captioned World Wide Tour Management System (TMS) operating in most part of Europe but predominantly in the UK which is broad enough to provide scenarios for demonstrating the benefits of using Use Case Diagram (UCD), Class Diagram, Communication Diagram and Sequence diagram during both analysis and design phase of process development. In conclusion it was established that DFD are most suited for understanding of functionality of the system operations at requirement gathering stage where as UML models seamlessly reveals all software objects necessary for constructing the proposed system under consideration.
doi:10.31871/wjir.9.1.28 fatcat:h72ofb7xabf5dbnvthz2kmuulq