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Create concise, easy-to-read notifications that provide useful information. Carefully consider what to send and when to send. On mobile, delay sending notifications on freshly downloaded apps to avoid alienating people.

Notification types can be broadly classified into three levels of severity: high, medium, and low attention. Each level of severity corresponds to a different level of urgency and attention required by the user.

Here's a simple process for writing UX microcopy for notifications and alerts: Understand the context. Start by understanding the purpose of the notification or alert. ... Keep it concise. ... Provide context. ... Be clear and specific. ... Use a clear call-to-action. ... Consider the tone and voice. ... Test and refine.

Identify the notification's intent and value for users It's basic human nature to ignore things which are of zero value to them. In this context, it's crucial to understand the users' needs and goals. Without this understanding, we might design a notification system of poor value to the end user.

For a notification system I would suggest you using the Observer pattern. The message you receive should be inside your Subject . Subject should allow any number of Observers to attach. When a message is received, the subject should notify all the observers.

Observer design pattern is used to notify users when the state changes. It is behavioural design pattern.It allows multiple observers (dependent objects) to be notified automatically whenever a subject (observable object) undergoes changes in its state.

For a notification system I would suggest you using the Observer pattern. The message you receive should be inside your Subject . Subject should allow any number of Observers to attach. When a message is received, the subject should notify all the observers.