@startuml

left to right direction

actor User

rectangle 小米便签 {
    usecase CreateNote as "创建便签"
    usecase AddImageToNote as "添加图片"
    usecase SaveNote as "保存便签"
    usecase DisplayNote as "显示便签"
    usecase DisplayToDoList as "显示待处理事件列表"
    usecase ReadToDoItem as "朗读待处理事件"
    usecase MarkToDoItemAsDone as "标记待处理事件为已完成"
}

User ---> CreateNote
User --> AddImageToNote
User --> SaveNote
User -> DisplayNote
User --> DisplayToDoList
User --> ReadToDoItem
User ---> MarkToDoItemAsDone

CreateNote --> 小米便签
AddImageToNote --> 小米便签
SaveNote --> 小米便签
DisplayNote --> 小米便签
DisplayToDoList --> 小米便签
ReadToDoItem --> 小米便签
MarkToDoItemAsDone --> 小米便签

@enduml