Entity Relationship Diagram (ERD) is the conceptual model of database design which serves as a visual starting point for database architecture. Database design represents structural diagrams of information systems. Thus, it needs to be constructed comprehensively. It was included in the ASK and SK curriculum which was introduced in 2017. Many students and even teachers are struggling in learning this topic as the content of this topic in form 3, form 4 and form 5 were using different notation. Hence, ERDeeds, a mobile application using the Project-Based Learning (PBL) and Computational Thinking (CT) approach, offers ERD problem solving efficiently. It aims to help teachers and students in learning ERD and understand ERD concept and development interactively anywhere at any time. Evolutionary prototyping methodology was adopted in developing this app. The evaluation of ERDeeds shows that an average score of 76% was given based on the analysis using System Usability Scale (SUS.....

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