Quais são alguns padrões de design de interface do usuário para notificações e alertas?

Notifications and alerts are messages that inform, warn, or request action from the user. They appear in various places on the screen, such as the top, bottom, or center, and can pop up as windows. Their urgency and interactivity vary. For instance, a notification might be a simple reminder, feedback, or status update, while an alert could signify a critical error, warning, or permission request. From my experience, effective notifications balance being noticeable without being intrusive. Prioritizing user context and timing can significantly improve the user experience, ensuring users get the right information at the right moment.

Depending on the context of the page or functionality, alerts or notifications can be displayed in-line within the content (e.g. An in-line alert notification is displayed near a disabled functionality, available only for registered users. An error message indicating a warning when a user has exceeded the number of attempts when trying to login, etc.). Normally, this UI pattern is designed with an icon, a short message and it's wrapped with a colored container depending on its intention : a success message - Normally green, a warning - Normally orange, or simply an information - Normally white or light grey. They can be easly dismissed by the user, automatically dismissed after a few seconds or remain available for the user.

Notifications and alerts serve as a vital communication channel between the application and the user. When prototyping these elements, it's crucial to consider the context of use and the user's journey. For instance, progressive disclosure can be used to present complex information in stages, reducing cognitive load. Tools like in-context editing within prototyping software can simulate the real-time experience of notifications, allowing designers to fine-tune the timing, frequency, and content. This ensures that alerts are not only informative but also seamlessly integrated into the user experience.

With Figma, you can use the "Open overlay" interaction to easily prototype a pop-up notification in your user flow. Add a "Move In" animation style to have it pop up from the bottom or top and adjust the animation curve/timing to ensure the user has enough time to read the copy before it disappears or provide a button to manually dismiss the message.

In my experience, especially when using Figma, I find a structured approach beneficial for prototyping and ultimately presenting the overall aesthetic to clients. My usual method involves crafting individual component frames for each notification type—like tooltips, popovers, or toasts etc. To demonstrate these notifications in context, you can prepare a static example of an interface area with the alert and another without it. This not only provides a clear visual representation but also helps in integrating these elements into the user flow for a more interactive experience. Making use of comments throughout, much like a developer commenting their code, also provides an added layer of understanding for collaborative feedback.

In UI prototyping, the choice of notification pattern should align with the urgency and type of user action required. Toasts are non-intrusive and suitable for confirmations, while badges keep users informed without immediate interruption. Banners are more prominent and used for critical alerts, and modals demand immediate attention, ensuring the user cannot proceed without addressing the prompt. Snackbars balance visibility and user engagement by offering actionable options. Each pattern serves a distinct purpose in user experience design, and their effective use can significantly enhance the intuitiveness and responsiveness of an interface.

Love the clarity in your explanation! Toasts and snack bars are often underrated, but they really shine in minimal UIs. Following for more UX gems like this ✨

Among the resources I prefer, beyond the well-known names and aggregators/collections that we can easily find around, I would like to mention the Carbon Design System, which provides extensive documentation on this topic.