Chapter 3 Research Methodology - DSpace@UM

Nevertheless, in Waterfall model, its well-structured approach caused inflexibilityin adapting to new requirements and changes. Therefore, each stage in the systemdevelopment must be perfectly implemented before next development stage gets started. Toadopt Waterfall model, it is important to be aware of the exact requirements needed and allprogram functionalities must be well-planned.3.4.1 E-Multimedia Mathematics Learning System (EMMLS) and Waterfall Modeli. Requirement AnalysisIn this stage, requirements are gathered using data collection instruments suchas questionnaires, observations and interviews. Respondents consist of studentsfrom lower secondary school from SMK Assunta and teachers teachingMathematics. Both qualitative and quantitative research outcomes wereanalyzed and summarized.ii. System Designa) In this phase, activity diagram, sequence diagram, state machine diagram andclass diagram were drawn to represent the flow of information and objectsinvolved in EMMLS’s development. Activity diagram is used to show theworkflows of functionalities in EMMLS. Sequence diagram describes theprocesses and relationship among the objects in the EMMLS, the messagesexchanged between the objects and the sequence of occurrences in graphicalmanner. State machine diagram on the other hand is used to explain thebehavior of EMMLS, the inputs, conditions required and the outputs produced.Class diagram at the end analyzes and summarizes the processes and objects33