diff --git a/src/main/asciidoc/models/design/staff.puml b/src/main/asciidoc/models/design/staff.puml
new file mode 100644
index 0000000..858697b
--- /dev/null
+++ b/src/main/asciidoc/models/design/staff.puml
@@ -0,0 +1,70 @@
+@startuml
+
+skinparam linetype ortho
+skinparam groupInheritance 2
+
+package java.util {
+	class ArrayList
+	class Collection
+	class HashSet
+	class Optional
+	class Set
+}
+
+package catering {
+package staff {
+
+	class Staff {
+		- id: int
+		- surname:  String
+		- name: String
+		- job: String
+		+ Staff(name: String, surname: String, job: String)
+		+ getId(): int
+		+ getSurname(): String
+		+ getName(): String
+		+ getJob(): String
+		+ setId(): void
+		+ setSurname(): void
+		+ setName(): void
+		+ setJob(): void
+	}
+
+	class StaffController {
+		+ StaffController(staffRepository: StaffRepository)
+		+ getStaff(model Model): String
+		+ removeStaff(staffID: int, model Model): String
+		+ addStaff(name: String, surname: String, job: String): String
+		+ editStaff(id: int, model Model): String
+		+ updateStaff(staff: Staff): String
+	}
+
+	class StaffDataInitializer {
+		+ StaffDataInitializer(staffRepository: StaffRepository)
+		+ initialize(): void
+	}
+
+	class StaffRepository {
+		+ StaffRepository()
+		+ addStaff(staff: Staff): boolean
+		+ save(staff: Staff): void
+		+ count(): long
+		+ removeStaff(staffID: int) boolean
+		+ getStaff(): Collection<Staff>
+		+ findById(id: int): Optional<Staff>
+	}
+
+}
+}
+
+StaffRepository *-- Staff : -staff
+StaffController --> StaffRepository : -staffRepository
+StaffDataInitializer --> StaffRepository : -staffRepository
+StaffRepository --> Set : -staffs
+StaffRepository --> HashSet : use
+StaffRepository --> Collection : use
+StaffRepository --> Optional : use
+StaffRepository --> ArrayList : use
+
+
+@enduml
diff --git a/src/main/asciidoc/models/design/staff.svg b/src/main/asciidoc/models/design/staff.svg
new file mode 100644
index 0000000..c9a739e
--- /dev/null
+++ b/src/main/asciidoc/models/design/staff.svg
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:7bac1dd4468b9329f4cb14ab61b94527c26d2aaf626823ca1b36b3fd8755cb32
+size 26856