@startuml
left to right direction
actor "顧客" as yu
actor "補充スタッフ" as com
rectangle 自動販売機システム{
usecase "補充処理" as UC1
usecase "システムメンテナンス" as UC2
usecase "在庫確認" as UC3
usecase "商品受け取り" as UC4
usecase "支払いの完了" as UC5
usecase "商品選択" as UC6
}
com --> UC2
com --> UC1
com --> UC3
yu --> UC4
yu --> UC5
yu --> UC6
@enduml
Ref.
UML day10
https://qiita.com/kaizen_nagoya/items/a9c31a1d9f52afc5e56f
一目でわかるPlantUML
https://plantuml.com/ja/
PlantUML を使った UML の描き方
https://plantuml.com/ja/guide
シーケンス図
https://plantuml.com/ja/sequence-diagram
タイミング図
https://plantuml.com/ja/timing-diagram
ステートダイアグラム
https://plantuml.com/ja/state-diagram
ユースケース図
https://plantuml.com/ja/use-case-diagram
PlantUML
https://qiita.com/kaizen_nagoya/items/cb6802e6c7903efd1b46
職業訓練
https://qiita.com/kaizen_nagoya/items/95368b63fa21d64271ec
かんたんUML入門 改訂２版
https://qiita.com/kaizen_nagoya/items/1746cadd6cab7da49680
UML 1.4.2
https://www.omg.org/spec/UML/ISO/19501/PDF
JIS X 4170:2009(UML 1.4.2, ISO/IEC 19501:2005)
https://kikakurui.com/x4/X4170-2009-01.html#google_vignette
UML 2.1.2 Superstructure(ISO/IEC 19505-1:2012)
https://www.omg.org/spec/UML/2.1.2/Superstructure/PDF/
UML 2.1.2 Infrastructure(ISO/IEC 19505-2:2012)
https://www.omg.org/spec/UML/2.1.2/Infrastructure/PDF