@startuml
title Топология базы данных информационной системы ВУЗа

top to bottom direction
skinparam linetype ortho
skinparam packageStyle rectangle

' ===== Справочники =====
package "1-я очередь\n(справочники)" {
    rectangle faculties
    rectangle departments
    rectangle disciplines
    rectangle semesters
}

' ===== Основные сущности =====
package "2-я очередь\n(основные сущности)" {
    rectangle groups
    rectangle students
    rectangle teachers
}

' ===== Учебный процесс =====
package "3-я очередь\n(учебный процесс)" {
    rectangle teaching_assignments
    rectangle exams
}

' ===== Дипломные работы =====
package "4-я очередь\n(дипломные работы)" {
    rectangle diploma_works
}

' ===== Связи =====
faculties --> departments
faculties --> groups

groups --> students

departments --> teachers

teachers --> teaching_assignments
disciplines --> teaching_assignments
groups --> teaching_assignments
semesters --> teaching_assignments

students --> exams
teachers --> exams
disciplines --> exams
semesters --> exams

students --> diploma_works
teachers --> diploma_works

@enduml