diff --git a/src/main/java/de/hitec/nhplus/medication/Ingredient.java b/src/main/java/de/hitec/nhplus/medication/Ingredient.java
index 626e3c0..5e12bd0 100644
--- a/src/main/java/de/hitec/nhplus/medication/Ingredient.java
+++ b/src/main/java/de/hitec/nhplus/medication/Ingredient.java
@@ -2,6 +2,13 @@ package de.hitec.nhplus.medication;
 
 import javafx.beans.property.SimpleStringProperty;
 
+/**
+ * The Simple Model for an {@link Ingredient}.
+ *
+ * @author Dominik Säume
+ * @implSpec This isn't a Conventional Model, because it isn't directly Stored in the Database,
+ * but it can be changed to do that, in the case that its Complexity rises in the Future.
+ */
 public class Ingredient {
     private final SimpleStringProperty name;
 
diff --git a/src/main/java/de/hitec/nhplus/medication/Medication.java b/src/main/java/de/hitec/nhplus/medication/Medication.java
index f27a312..ed6fc33 100644
--- a/src/main/java/de/hitec/nhplus/medication/Medication.java
+++ b/src/main/java/de/hitec/nhplus/medication/Medication.java
@@ -10,6 +10,11 @@ import java.util.List;
 import java.util.StringJoiner;
 import java.util.stream.Collectors;
 
+/**
+ * The Model for a {@link Medication}.
+ *
+ * @author Dominik Säume
+ */
 public class Medication {
     private SimpleIntegerProperty id;
     private final SimpleStringProperty name;
@@ -19,6 +24,13 @@ public class Medication {
     private final SimpleStringProperty administrationMethod;
     private final SimpleIntegerProperty currentStock;
 
+    /**
+     * This Constructor allows to Instantiate a {@link Medication} Object,
+     * before it is Stored in the Database, by omitting the {@link Medication#id ID} value.
+     *
+     * @implSpec Instances Created with this Constructor can be directly passed to
+     * {@link de.hitec.nhplus.medication.database.MedicationDao#create MedicationDao.create}.
+     */
     public Medication(
             String name,
             String manufacturer,
@@ -35,6 +47,9 @@ public class Medication {
         this.currentStock = new SimpleIntegerProperty(currentStock);
     }
 
+    /**
+     * This Constructor allows to Instantiate a {@link Medication} Object with all Existing Fields.
+     */
     public Medication(
             int id,
             String name,
diff --git a/src/main/java/de/hitec/nhplus/nurse/Nurse.java b/src/main/java/de/hitec/nhplus/nurse/Nurse.java
index 18e87f1..de13ce3 100644
--- a/src/main/java/de/hitec/nhplus/nurse/Nurse.java
+++ b/src/main/java/de/hitec/nhplus/nurse/Nurse.java
@@ -6,10 +6,22 @@ import javafx.beans.property.SimpleStringProperty;
 
 import java.util.StringJoiner;
 
+/**
+ * The Model for a {@link Nurse}.
+ *
+ * @author Dominik Säume
+ */
 public class Nurse extends Person {
     private SimpleIntegerProperty id;
     private final SimpleStringProperty phoneNumber;
 
+    /**
+     * This Constructor allows to Instantiate a {@link Nurse} Object,
+     * before it is Stored in the Database, by omitting the {@link Nurse#id ID} value.
+     * 
+     * @implSpec Instances Created with this Constructor can be directly passed to
+     * {@link de.hitec.nhplus.nurse.database.NurseDao#create  NurseDao.create}.
+     */
     public Nurse(
             String firstName,
             String surName,
@@ -19,6 +31,9 @@ public class Nurse extends Person {
         this.phoneNumber = new SimpleStringProperty(phoneNumber);
     }
 
+    /**
+     * This Constructor allows to Instantiate a {@link Nurse} Object with all Existing Fields.
+     */
     public Nurse(
             int id,
             String firstName,
diff --git a/src/main/java/de/hitec/nhplus/patient/Patient.java b/src/main/java/de/hitec/nhplus/patient/Patient.java
index c7c72ee..1d1fe2a 100644
--- a/src/main/java/de/hitec/nhplus/patient/Patient.java
+++ b/src/main/java/de/hitec/nhplus/patient/Patient.java
@@ -11,6 +11,13 @@ import java.util.ArrayList;
 import java.util.List;
 import java.util.StringJoiner;
 
+/**
+ * The Model for a {@link Patient}.
+ *
+ * @author Bernd Heideman
+ * @author Dominik Säume
+ * @author Armin Ribic
+ */
 public class Patient extends Person {
     private SimpleIntegerProperty id;
     private final SimpleStringProperty dateOfBirth;
@@ -18,6 +25,12 @@ public class Patient extends Person {
     private final SimpleStringProperty roomNumber;
     private final List<Treatment> allTreatments = new ArrayList<>();
 
+    /**
+     * This Constructor allows to Instantiate a {@link Patient} Object,
+     * before it is Stored in the Database, by omitting the {@link Patient#id ID} value.
+     * @implSpec Instances Created with this Constructor can be directly passed to
+     * {@link de.hitec.nhplus.patient.database.PatientDao#create PatientDao.create}.
+     */
     public Patient(
             String firstName,
             String surName,
@@ -31,6 +44,9 @@ public class Patient extends Person {
         this.roomNumber = new SimpleStringProperty(roomNumber);
     }
 
+    /**
+     * This Constructor allows to Instantiate a {@link Patient} Object with all Existing Fields.
+     */
     public Patient(
             int id,
             String firstName,
diff --git a/src/main/java/de/hitec/nhplus/treatment/Treatment.java b/src/main/java/de/hitec/nhplus/treatment/Treatment.java
index 4551560..c050f2b 100644
--- a/src/main/java/de/hitec/nhplus/treatment/Treatment.java
+++ b/src/main/java/de/hitec/nhplus/treatment/Treatment.java
@@ -10,6 +10,12 @@ import java.time.LocalDate;
 import java.time.LocalTime;
 import java.util.StringJoiner;
 
+/**
+ * The Model for a {@link Treatment}.
+ *
+ * @author Bernd Heideman
+ * @author Dominik Säume
+ */
 public class Treatment {
     private SimpleIntegerProperty id;
     private final SimpleObjectProperty<Patient> patient;
@@ -19,8 +25,21 @@ public class Treatment {
     private final SimpleStringProperty description;
     private final SimpleStringProperty remarks;
 
-    public Treatment(Patient patient, LocalDate date, LocalTime begin,
-                     LocalTime end, String description, String remarks) {
+    /**
+     * This Constructor allows to Instantiate a {@link Treatment} Object,
+     * before it is Stored in the Database, by omitting the {@link Treatment#id ID} value.
+     *
+     * @implSpec Instances Created with this Constructor can be directly passed to
+     * {@link de.hitec.nhplus.treatment.database.TreatmentDao#create TreatmentDao.create}.
+     */
+    public Treatment(
+            Patient patient,
+            LocalDate date,
+            LocalTime begin,
+            LocalTime end,
+            String description,
+            String remarks
+    ) {
         this.patient = new SimpleObjectProperty<>(patient);
         this.date = new SimpleObjectProperty<>(date);
         this.begin = new SimpleObjectProperty<>(begin);
@@ -29,8 +48,18 @@ public class Treatment {
         this.remarks = new SimpleStringProperty(remarks);
     }
 
-    public Treatment(int id, Patient patient, LocalDate date, LocalTime begin,
-                     LocalTime end, String description, String remarks) {
+    /**
+     * This Constructor allows to Instantiate a {@link Treatment} Object with all Existing Fields.
+     */
+    public Treatment(
+            int id,
+            Patient patient,
+            LocalDate date,
+            LocalTime begin,
+            LocalTime end,
+            String description,
+            String remarks
+    ) {
         this.id = new SimpleIntegerProperty(id);
         this.patient = new SimpleObjectProperty<>(patient);
         this.date = new SimpleObjectProperty<>(date);