To effectively visualize exam, security data trends for management, align charts showing the frequency of different security incidents, for example, cheating, plagiarism, overtime is a good starting point. This allows for quick identification of rising or failing trends and potentially correlates them with specific exam periods or changes in security protocols in which additionally you can combine this line charts with bar charts representing the total number of incidents or the cost of security measures to provide context and further details. Here's a breakdown of the design consideration and why they are beneficial. My first point is charts type, there are line charts for trend. Line charts are ideal for illustrating changes in data over time. They clearly show the direction and magnitude of trends making it easy to spot patterns and identify potential issues early on. How to use different colors for different types of security incidents, for example, you might use red for cheating, green for successful students and blue for already have done exams.
