@startuml
skinparam monochrome true
skinparam packageStyle rectangle
skinparam shadowing false

'left to right direction

skinparam classAttributeIconSize 0


hide circle
hide methods

'title Domain Model

'class Platform {
'  -description
'}

class UnregisteredUser{

}

class Client{
name
citizen's card number
taxNumber
address
email
phoneNumber
password
}


UnregisteredUser "1" -- "0,1" Client

@enduml