@startuml fig_16_dfd_level0
scale 3
title DFD уровень 0: Wallenc
skinparam defaultFontName "DejaVu Sans"

actor User
rectangle "Процесс 0\nWallenc" as P0 {
  usecase "UI" as UI
  usecase "Домен" as Dom
  usecase "Крипто" as Crypto
  usecase "Адаптеры\nхранилищ" as Store
  database "Room" as DB
}

cloud Provider

User --> UI : команды,\nфайлы
UI --> Dom
Dom --> Crypto : ключ,\nданные
Dom --> Store
Dom --> DB : метаданные
Store --> Provider : ciphertext

@enduml