Designing A Use Case Diagram For Developing An Electricity Consumption (EC) System

This paper addresses the design of a use case diagram Unified Modelling Language (UML) model when developing an EC system. The EC system is an important aspect to be developed due to the increasing demand of the user needs. Currently, there are no such systems developed to provide the summarization of the average electrical usage in a bar chart graph layout, which makes it difficult to understand energy usage patterns and their impact on electricity bills each month. In addition, the Tenaga Nasional Berhad (TNB) online customer service system does not have any related feature to assist users with understanding their energy usage [5]. The EC system will be developed to overcome the above-mentioned problems, and to recommend other features to complement average user needs. Specifying the context and requirements of the EC system will use a use case diagram UML model. The use case diagram shows the scope of the system that will be developed. The main feature in the EC system is the ability to visualize the electricity usage by allowing users select search category. The selection of the search category can include a range of dates, for example by day or month or year, in displaying the results. Based on the output produced, the users can properly manage their usage of electricity in their house and reduce their electricity bills.