Dashboard design should highlight data and decoration should be limited, to add to a reader's understanding. Much has been written about dashboard design for data visualization. The following are some key points that you should consider when designing dashboards:
Keep it simple: Your dashboard needs to answer only one question. If you can construct it so elegantly that it answers several questions, that's great, but according to Stephen Few, the maximum number of data points that any of us can remember at once is three.
Keep in mind the audience: Consider what devices will be used to read or consume the data story and content.
The method of consumption: Will users interact with virtualization on their computer, mobile phone, or tablet? Size your dashboard accordingly.
Performance: Like any other web application, the amount of time it takes for a consumer to get what they need is a major factor of performance. Design your visualizations and data sources...