diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000..f0dbcf3
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1,4 @@
+# Adrian
+.vscode/
+.idea/
+.target/
diff --git a/docs/Use_Case/Organization.png b/docs/Use_Case/Organization.png
new file mode 100644
index 0000000..d7a561f
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diff --git a/docs/Use_Case/Use_Case_uml.docx b/docs/Use_Case/Use_Case_uml.docx
new file mode 100644
index 0000000..bc3df02
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diff --git a/docs/Use_Case/user_case_user.png b/docs/Use_Case/user_case_user.png
new file mode 100644
index 0000000..704f146
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diff --git a/helpmehelpapplication/src/main/java/ntnu/sytemutvikling/team6/models/AnonymousDonation.java b/helpmehelpapplication/src/main/java/ntnu/sytemutvikling/team6/models/AnonymousDonation.java
deleted file mode 100644
index 6f991e9..0000000
--- a/helpmehelpapplication/src/main/java/ntnu/sytemutvikling/team6/models/AnonymousDonation.java
+++ /dev/null
@@ -1,4 +0,0 @@
-package ntnu.sytemutvikling.team6.models;
-
-public class AnonymousDonation extends Donation {
-}
diff --git a/helpmehelpapplication/src/main/java/ntnu/sytemutvikling/team6/models/Charity.java b/helpmehelpapplication/src/main/java/ntnu/sytemutvikling/team6/models/Charity.java
index 92ebbf1..4a389f4 100644
--- a/helpmehelpapplication/src/main/java/ntnu/sytemutvikling/team6/models/Charity.java
+++ b/helpmehelpapplication/src/main/java/ntnu/sytemutvikling/team6/models/Charity.java
@@ -1,4 +1,98 @@
+/**
+ * This class represents a charity organization. It contains information about the charity such as its name, description, total donations, verification status, and category.
+ * 
+ * @author Adrian Balunan
+ */
 package ntnu.sytemutvikling.team6.models;
 
+import java.util.List;
+import java.util.UUID;
+import java.util.ArrayList;
+
 abstract class Charity {
+    /* UUID for uniquely identifying each charity */
+    private UUID id;
+
+    /* Name of the charity */
+    private String name;
+
+    /* Description of the charity's mission and activities */
+    private String description;
+
+    /* Total Donations received */
+    private int totalDonations;
+
+    /* Is the charity verified? */
+    private boolean isVerified;
+
+    /* Category for the charity */
+    private String category;
+
+    /* List that contains the charity's Feedbacks */
+    private List<Feedback> feedbacks;
+
+    /**
+     * Konstructor for creating a new charity. 
+     *      The ID is generated automatically using UUID.
+     *      Total donations are initialized to 0. 
+     *      The charity is unverified by default.
+     * 
+     * @param name
+     * @param description
+     * @param category
+     */
+    public Charity(String name, String description, String category) {
+        this.id = UUID.randomUUID();
+        this.name = name;
+        this.description = description;
+        this.totalDonations = 0;
+        this.isVerified = false;
+        this.feedbacks = new ArrayList<>();
+        this.category = category;
+    }
+
+    /**
+     * Getters for the charity's attributes.
+     */
+    public UUID getId() {
+        return id;
+    }
+    public String getCategory() {
+        return category;
+    }
+    public String getName() {
+        return name;
+    }
+    public String getDescription() {
+        return description;
+    }
+    public int getTotalDonations() {
+        return totalDonations;
+    }
+    public boolean isVerified() {
+        return isVerified;
+    }
+
+    /**
+     * Setter for verification status.
+     *    This one sets the charity as verified.
+     */
+    public void setVerified() {
+        this.isVerified = true;
+    }
+
+    /**
+     * Setter for verification status.
+     *    This one sets the charity as unverified.
+     */
+    public void setUnverified() {
+        this.isVerified = false;
+    }
+
+    /**
+     * Setter for total donations. This method is used to update the total donations when a new donation is made.
+     */
+    public void setTotalDonations(int amount) {
+        this.totalDonations += amount;
+    }
 }
diff --git a/helpmehelpapplication/src/main/java/ntnu/sytemutvikling/team6/models/CharityRegistry.java b/helpmehelpapplication/src/main/java/ntnu/sytemutvikling/team6/models/CharityRegistry.java
index e69de29..a8d698e 100644
--- a/helpmehelpapplication/src/main/java/ntnu/sytemutvikling/team6/models/CharityRegistry.java
+++ b/helpmehelpapplication/src/main/java/ntnu/sytemutvikling/team6/models/CharityRegistry.java
@@ -0,0 +1,38 @@
+package ntnu.sytemutvikling.team6.models;
+
+import java.util.*;
+
+public class CharityRegistry{
+    private final List<Charity> charities;
+
+    public CharityRegistry(){
+        this.charities = new ArrayList<>();
+    }
+
+    public List<Charity> getAllCharities(){
+        return Collections.unmodifiableList(charities);
+    }
+
+    public Optional<Charity> findCharityById(UUID charityId){
+        if(charityId == null){
+            throw new IllegalArgumentException("CharityId can not be null.");
+        }
+        return charities.stream()
+        .filter(charity -> charityId.equals(charity.getId()))
+        .findFirst();
+    }
+
+    public void addCharity(Charity charity){
+    if(charity == null){
+        throw new IllegalArgumentException("Charity can not be null.");
+    }
+    charities.add(charity);
+    }
+
+    public boolean removeCharity(UUID charityId){
+        if(charityId == null){
+            throw new IllegalArgumentException("CharityId can not be null.");
+        }
+        return charities.removeIf(charity -> charityId.equals(charity.getId()));
+    }
+}
\ No newline at end of file
diff --git a/helpmehelpapplication/src/main/java/ntnu/sytemutvikling/team6/models/Donation.java b/helpmehelpapplication/src/main/java/ntnu/sytemutvikling/team6/models/Donation.java
index 1f457bd..78569b2 100644
--- a/helpmehelpapplication/src/main/java/ntnu/sytemutvikling/team6/models/Donation.java
+++ b/helpmehelpapplication/src/main/java/ntnu/sytemutvikling/team6/models/Donation.java
@@ -1,4 +1,79 @@
 package ntnu.sytemutvikling.team6.models;
 
+import java.time.LocalDateTime;
+import java.util.UUID;
+
 public class Donation {
+    /* UUID for uniquely identifying each donation */
+    private UUID charityId;
+
+    /* Ammount of money donated */
+    private double amount;
+
+    /* Date and time of the donation */
+    private LocalDateTime date;
+
+    /* The charity that received the donation */
+    private Charity charity;
+
+    /* The user/donor that made the donation */
+    private User donor;
+
+    /**
+     * Is the donation made anonymously?
+     *      This can be null if the donation was made anonymously.
+     * 
+     */
+    private boolean isAnonymous;
+
+    /**
+     * Constructor for creating a new donation.
+     *      The charityId is generated automatically using UUID.
+     *      If the donation is made anonymously, the isAnonymous parameter is set to true.
+     * @param amount
+     * @param date
+     * @param charity
+     * @param donor
+     */
+    public Donation(double amount, LocalDateTime date, Charity charity, User donor) {
+        this.charityId = UUID.randomUUID();
+        this.amount = amount;
+        this.date = date;
+        this.charity = charity;
+        this.donor = donor;
+
+
+        // ASSUMES that this is the way to get the anonymous setting from the user's settings.
+        if (donor.getSettings().getAnonymous() == false) {
+            this.isAnonymous = true;
+        } else {
+            this.isAnonymous = false;
+
+        }
+    }
+
+    /* Getters for the donation's attributes */
+    public boolean isAnonymous() {
+        return isAnonymous;
+    }
+
+    public UUID getCharityId() {
+        return charityId;
+    }
+
+    public double getAmount() {
+        return amount;
+    }
+
+    public LocalDateTime getDate() {
+        return date;
+    }
+
+    public Charity getCharity() {
+        return charity;
+    }
+
+    public User getDonor() {
+        return donor;
+    }
 }
diff --git a/helpmehelpapplication/src/main/java/ntnu/sytemutvikling/team6/models/DonationRegistry.java b/helpmehelpapplication/src/main/java/ntnu/sytemutvikling/team6/models/DonationRegistry.java
index f565298..a84ec79 100644
--- a/helpmehelpapplication/src/main/java/ntnu/sytemutvikling/team6/models/DonationRegistry.java
+++ b/helpmehelpapplication/src/main/java/ntnu/sytemutvikling/team6/models/DonationRegistry.java
@@ -1,5 +1,39 @@
 package ntnu.sytemutvikling.team6.models;
 
+import java.util.*;
+
 public class DonationRegistry {
+    private final List<Donation> donations;
+
+    public DonationRegistry(){
+        this.donations = new ArrayList<>();
+    }
+
+    public List<Donation> getAllDonations(){
+        return Collections.unmodifiableList(donations);
+    }
+
+    public Optional<Donation> findDonationById(UUID donationId){
+        if(donationId == null){
+            throw new IllegalArgumentException("DonationId can not be null.");
+        }
+        return donations.stream()
+        .filter(donations -> donationId.equals(donations.getCharityId()))
+        .findFirst();
+    }
+
+    public void addDonation(Donation donation){
+        if(donation == null){
+            throw new IllegalArgumentException("Donation can not be null.");
+        }
+        donations.add(donation);
+    }
+
+    public boolean removeDonation(UUID donationId){
+        if(donationId == null){
+            throw new IllegalArgumentException("DonationId can not be null.");
+        }
+        return donations.removeIf(donation -> donationId.equals(donation.getCharityId()));
+    }
     
 }
diff --git a/helpmehelpapplication/src/main/java/ntnu/sytemutvikling/team6/models/Feedback.java b/helpmehelpapplication/src/main/java/ntnu/sytemutvikling/team6/models/Feedback.java
index 1cea4ca..891dce1 100644
--- a/helpmehelpapplication/src/main/java/ntnu/sytemutvikling/team6/models/Feedback.java
+++ b/helpmehelpapplication/src/main/java/ntnu/sytemutvikling/team6/models/Feedback.java
@@ -1,4 +1,65 @@
 package ntnu.sytemutvikling.team6.models;
 
+import java.time.LocalDateTime;
+import java.util.UUID;
+
 public class Feedback {
+    /* Feedback id */
+    private UUID feedbackId;
+
+    /**
+     * The author of the feedback 
+     *   If annonymous the presentation of the user will be "Anonymous".
+     */
+    private User user;
+
+    /* The details of the feedback*/
+    private String comment;
+
+    /* The date and time when the feedback was given */
+    private LocalDateTime date;
+
+    /* Is the feedback given anonymously? */
+    private boolean isAnonymous;
+
+    /**
+     * Constructor for creating a new feedback.
+     * 
+     * @param user The user who gives the feedback.
+     * @param comment The content of the feedback.
+     */
+    public Feedback(User user, String comment) {
+        this.feedbackId = UUID.randomUUID();
+        this.user = user;
+        this.comment = comment;
+        this.date = LocalDateTime.now();
+
+        // ASSUMES that this is the way to get the anonymous setting from the user's settings.
+        if (user.getSettings().getAnonymous() == false) {
+            this.isAnonymous = true;
+        } else {
+            this.isAnonymous = false;
+        }
+    }
+
+    /**
+     * Getters for the feedback's attributes.
+     * 
+     * @return The feedback's attributes.
+     */
+    public UUID getFeedbackId() {
+        return feedbackId;
+    }
+    public String getComment() {
+        return comment;
+    }
+    public LocalDateTime getDate() {
+        return date;
+    }
+    public User getUser() {
+        return user;
+    }
+    public boolean isAnonymous() {
+        return isAnonymous;
+    }
 }
diff --git a/helpmehelpapplication/src/main/java/ntnu/sytemutvikling/team6/models/PublicDonation.java b/helpmehelpapplication/src/main/java/ntnu/sytemutvikling/team6/models/PublicDonation.java
deleted file mode 100644
index 7da3000..0000000
--- a/helpmehelpapplication/src/main/java/ntnu/sytemutvikling/team6/models/PublicDonation.java
+++ /dev/null
@@ -1,5 +0,0 @@
-package ntnu.sytemutvikling.team6.models;
-
-public class PublicDonation extends Donation {
-    
-}
diff --git a/helpmehelpapplication/src/main/java/ntnu/sytemutvikling/team6/models/UserRegistry.java b/helpmehelpapplication/src/main/java/ntnu/sytemutvikling/team6/models/UserRegistry.java
index da4ce2b..7b97e02 100644
--- a/helpmehelpapplication/src/main/java/ntnu/sytemutvikling/team6/models/UserRegistry.java
+++ b/helpmehelpapplication/src/main/java/ntnu/sytemutvikling/team6/models/UserRegistry.java
@@ -1,5 +1,6 @@
 package ntnu.sytemutvikling.team6.models;
 
 public class UserRegistry {
-    
+
+
 }
diff --git a/helpmehelpapplication/src/main/java/ntnu/sytemutvikling/team6/service/AuthenticationService.java b/helpmehelpapplication/src/main/java/ntnu/sytemutvikling/team6/service/AuthenticationService.java
deleted file mode 100644
index 5f98c21..0000000
--- a/helpmehelpapplication/src/main/java/ntnu/sytemutvikling/team6/service/AuthenticationService.java
+++ /dev/null
@@ -1,4 +0,0 @@
-package ntnu.sytemutvikling.team6.service;
-
-public class AuthenticationService {
-}
diff --git a/helpmehelpapplication/src/main/java/ntnu/sytemutvikling/team6/service/CharityService.java b/helpmehelpapplication/src/main/java/ntnu/sytemutvikling/team6/service/CharityService.java
deleted file mode 100644
index 6bd33ce..0000000
--- a/helpmehelpapplication/src/main/java/ntnu/sytemutvikling/team6/service/CharityService.java
+++ /dev/null
@@ -1,4 +0,0 @@
-package ntnu.sytemutvikling.team6.service;
-
-public class CharityService {
-}
diff --git a/helpmehelpapplication/src/main/java/ntnu/sytemutvikling/team6/service/DonationService.java b/helpmehelpapplication/src/main/java/ntnu/sytemutvikling/team6/service/DonationService.java
deleted file mode 100644
index bc4a7c8..0000000
--- a/helpmehelpapplication/src/main/java/ntnu/sytemutvikling/team6/service/DonationService.java
+++ /dev/null
@@ -1,4 +0,0 @@
-package ntnu.sytemutvikling.team6.service;
-
-public class DonationService {
-}
diff --git a/helpmehelpapplication/src/main/java/ntnu/sytemutvikling/team6/service/FeedbackService.java b/helpmehelpapplication/src/main/java/ntnu/sytemutvikling/team6/service/FeedbackService.java
deleted file mode 100644
index 93b2555..0000000
--- a/helpmehelpapplication/src/main/java/ntnu/sytemutvikling/team6/service/FeedbackService.java
+++ /dev/null
@@ -1,4 +0,0 @@
-package ntnu.sytemutvikling.team6.service;
-
-public class FeedbackService {
-}
diff --git a/helpmehelpapplication/target/classes/ntnu/sytemutvikling/team6/Main.class b/helpmehelpapplication/target/classes/ntnu/sytemutvikling/team6/Main.class
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index 42f6e49..7803742 100644
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