Its discoverability is good since all main action lines up on top of keypad together.

The icon here doesnвЂ™t follow the convention of the checkbox in a checklist, instead of a square with a check mark, Apple decides to unify this icon with others in the row-a circle with a check mark. Or provide a вЂњbackвЂќ or вЂњundoвЂќ action item on top of the new note screen to deal with the slip. In this case, to correct the mappings, IвЂ™ll suggest a lock-in action like a popup displays вЂњDo you want to save this note and create a new note?вЂќ, so the users donвЂ™t suffer from the imprecise knowledge in mind and are guided by the precise knowledge in the world. But there is no вЂњeditвЂќ button for вЂњeditвЂќ behavior, and because of the knowledge in mind taught users that the вЂњeditвЂќ icon looks really similar to вЂњcreate a noteвЂќ icon, so they might tap on that, then the result of the action is terrifying вЂ“ bring users to a brand new page without any description, so users might think the work theyвЂ™ve done might be gone. When users first time create the note, also means the note is being edited, there is a вЂњdoneвЂќ button as the signifier for вЂњdone editingвЂќ behavior. However, the mapping goes wrong when users want to edit the note. Once users tap the create new note icon, the keypad with a bunch of major note taking action items slides up as the signifier/feedback of what Notes app can do, this also maps the correct result after tapping create a note icon. The вЂњcreate new noteвЂќ feature is pretty findable on the dashboard view since thatвЂ™s the typical knowledge in the head for iOS users-action items located on the toolbar. Also, Make the вЂњunsketchableвЂќ area grey out when users tap the sketch icon to provide a visual indication of constraint, to simplify and restrict the drawing area even when users donвЂ™t draw anything yet. To modify the icon of the sketch feature in Notes app, but keep some convention visual element to afford the вЂњdrawing/sketchingвЂќ behavior, so the users would be able to tell the action is not mark in order to avoid the Description-Similarity slip. Also, the UX inconsistency might bring users attention from the behavioral level to reflective level, since theyвЂ™ve learned the skills to use the feature in other apps, but have to make a conscious decision when manipulating the same feature in Notes app. This inconsistency might mess up the knowledge in usersвЂ™ head and creates confusion. Users might have learned the icon from built-in photo app and screenshot app that it can вЂњmarkвЂќ on top of photos, so they might assume they can sketch or highlight on top of the text paragraphs, but it can not.

However, the mappings and feedback would have some room for improvement. Once when users tap it, the drawing settings provide the signifier of refining the drawing needs, it showcases the options of brushes, colors, and even a selection tool. The icon follows most of the convention to indicate possible вЂњdrawingвЂќ behavior in this app, itвЂ™s easy to understand and the discoverability is good when it displays with other major action items on top of the keyboard. This article would critique the Notes App based on some usability factors mentioned by Don NormanвЂ™s book- The Design of Everyday Things. The iOS built-in Notes app empowers usersвЂ™ note taking capability by providing seamless synchronization feature, supporting multimedia input/insert, and even integrating the sketch feature to simulate the analog note-taking experience.

Visual grub app