International Journal of Research and Scientific Innovation (IJRSI) | Volume IX, Issue VII, July 2022 | ISSN 2321–2705
Online Product Monitoring System (OPMS) of DTI
Bryan L. Guibijar
North Eastern Mindanao State University – San Miguel Campus
Brgy. Carromata, 8301 San Miguel, Surigao del Sur, Philippines
Abstract: The paper examined the model of the data flow diagram in developing Online Product Monitoring (OPMS) for the Department of Trade and Industry (DTI). It is based on the waterfall model in which descriptive research was applied to the existing product monitoring of DTI. Data from existing monitoring of DTI were interpreted and created system data flow diagram (DFD). The data flow diagram is applied in the analysis of software development and examined the top-down method that takes processes the input and output of data flows. Thus, the method developed based on the data flow diagram created will enhance the security and order of the developed online system.
Keywords: Data Flow Diagram, Data Aging, Security, Development, Input, and Output data flows
I. INTRODUCTION
Online development dramatically raises issues, especially in data flow and controlling of data in and out (Li, H., Sun, X., Shi, P., & Lam, H. K., 2015). This issue commonly happens in some open-source online templates in making your site (Hashem, I. A. T., Yaqoob, I., Anuar, N. B., Mokhtar, S., Gani, A., & Khan, S. U., 2015). Lots of students were creating their websites with free hosting and ready-made template (Ravichandran, H., Toohil, R., & Lammi, L., 2014). This leads to catastrophe when comes to data uploading and data downloading. The creation of the Data Flow Diagram in developing an online site will solve the issues. The study aims to provide a standard data flow diagram to enhance Input and Output Data flow (Abedjan, Z., Schulze, P., & Naumann, F., 2014, November).
Data Flow Diagrams are categorized by level, starting with the most basic, levels 0 – 3 (see figure 1 to figure 3), DFDs get increasingly complex as the level increases, as you build your data flow diagram, you will need to decide which level your diagram will be. In theory, DFDs could go beyond level 3, but they rarely do, level 3 data flow diagrams are detailed enough that it doesn’t usually make sense to break them down further (Bangeter, J., 2017).