diff --git a/src/main/java/org/texttechnologylab/project/gruppe_05_1/Main.java b/src/main/java/org/texttechnologylab/project/gruppe_05_1/Main.java
index b80482b..ebe8e79 100644
--- a/src/main/java/org/texttechnologylab/project/gruppe_05_1/Main.java
+++ b/src/main/java/org/texttechnologylab/project/gruppe_05_1/Main.java
@@ -44,6 +44,13 @@ public class Main {
     public static final String MEMBER_IMAGES_DIR = "src/main/resources/membersOfParliamentImages/";
     public static final String TEMP_EXPORT_DIR = "src/main/resources/tempExport/";
 
+    /**
+     * Main Methode zum Start des Multimodalen Parlament Explorers
+     * Programm-Flag Implementierung und DIR Konstanten von Jonas
+     *
+     * @param args
+     * @throws Exception
+     */
     public static void main(String[] args) throws Exception {
         UPLOAD_MEMBER_PHOTOS = Arrays.asList(args).contains("uploadMemberPhotos");
         FORCE_UPLOAD_MEMBERS = Arrays.asList(args).contains("forceUploadMembers");
diff --git a/src/main/java/org/texttechnologylab/project/gruppe_05_1/database/MongoDBHandler.java b/src/main/java/org/texttechnologylab/project/gruppe_05_1/database/MongoDBHandler.java
index daebedd..d0b0209 100644
--- a/src/main/java/org/texttechnologylab/project/gruppe_05_1/database/MongoDBHandler.java
+++ b/src/main/java/org/texttechnologylab/project/gruppe_05_1/database/MongoDBHandler.java
@@ -538,10 +538,7 @@ public class MongoDBHandler {
         collection.deleteOne(deleteQuery);
     }
 
-    /*
-     * Justus Jonas operations
-     * =======================
-     */
+
     /**
      * Fügt eine Session in die Datenbank ein.
      *
@@ -859,6 +856,12 @@ public class MongoDBHandler {
         return loadMemberImageFromFileByName(firstName, name);
     }
 
+    /**
+     * Lädt das Bild eines Mitglieds aus dem Ordner resources/membersOfParliamentImages anhand des Namens.
+     * @param firstName Der Vorname des Mitglieds.
+     * @return das Bild des Mitglieds als base64-String.
+     * Implementiert von Jonas
+     **/
     public String loadMemberImageFromFileByName(String firstName, String name) {
         // get the member photo from the resources/membersOfParliamentImages folder
         File photo = new File(MEMBER_IMAGES_DIR + name + "_" + firstName + ".jpg");
@@ -876,6 +879,12 @@ public class MongoDBHandler {
         return image_data;
     }
 
+    /**
+     * Lädt das Bild eines Mitglieds aus dem Ordner resources/membersOfParliamentImages anhand des Namens.
+     * @param memberId Der Vorname des Mitglieds.
+     * @param base64String Der base64-String des Bildes.
+     * Implementiert von Jonas
+     **/
     public void uploadMemberPhoto(String memberId, String base64String) {
         if (memberPhotoCollection.find(eq("memberId", memberId)).first() != null) {
             Logger.warn("Member photo for " + memberId + " already exists in the database. Overwriting...");
@@ -886,6 +895,10 @@ public class MongoDBHandler {
         memberPhotoCollection.insertOne(photoDocument);
     }
 
+    /**
+     * Lädt die Bilder aller Mitglieder in die Datenbank.
+     * Implementiert von Jonas
+     **/
     public void uploadMemberPhotos() {
         // get a list of the string of first and last name of all members from the DB
         // only fetch the first and lastname
@@ -912,6 +925,10 @@ public class MongoDBHandler {
         }
     }
 
+    /**
+     * Lädt die Bilder aller Mitglieder aus dem Ordner resources/membersOfParliamentImages in die Datenbank.
+     * Implementiert von Jonas
+     **/
     public void uploadMemberPhotosFromResourceFolder() {
         Logger.info("Found " + PPRUtils.listFilesInDirectory(MEMBER_IMAGES_DIR).size() + " member photos to upload.");
         // loop over file names in the directory
diff --git a/src/main/java/org/texttechnologylab/project/gruppe_05_1/database/MongoPprUtils.java b/src/main/java/org/texttechnologylab/project/gruppe_05_1/database/MongoPprUtils.java
index 595d43e..0bca703 100644
--- a/src/main/java/org/texttechnologylab/project/gruppe_05_1/database/MongoPprUtils.java
+++ b/src/main/java/org/texttechnologylab/project/gruppe_05_1/database/MongoPprUtils.java
@@ -176,6 +176,14 @@ public class MongoPprUtils {
         return plist;
     }
 
+    /**
+     * Fetched alle Parlamentarier, die einen Suchkriterium erfüllen.
+     * Das Suchkriterium wird auf allen Feldern angewandt: Vorname, Nachname, Partei.
+     * Ist das Suchkriterium leer, werden alle Parlamentarier zurückgeliefert
+     * Implementiert von Jonas
+     * @param ctx Session Context
+     * @return List<Parlamentarier>
+     */
     public static List<Parlamentarier> getFilteredMembers(Context ctx) {
         // Get optional filter arguments
         String memberIdParam = ctx.queryParam("memberId");
@@ -244,6 +252,14 @@ public class MongoPprUtils {
         }
     }
 
+    /**
+     * Fetched alle Parlamentarier aus der Datenbank, die einen Filter erfüllen
+     * es wird nur die gegebene Projektion zurückgegeben
+     * Implementiert von Jonas
+     * @param filter Filter, der auf die Datenbank angewendet wird
+     * @param projection Projektion, die auf die Datenbank angewendet wird
+     * @return Liste von Parlamentariern
+     **/
     public static List<Parlamentarier> retrieveAllMembersOfParliament(Bson filter, Bson projection) throws IOException {
         List<Document> speeches = getSpeakerCollection().find(filter).projection(projection).into(new ArrayList<>());
         List<Parlamentarier> result = new ArrayList<>();
@@ -370,8 +386,9 @@ public class MongoPprUtils {
 
     /**
      * Holt einen Speaker aus der Datenbank
-     * @param id
-     * @return
+     * Implementiert von Jonas
+     * @param id ID des Parlamentariers
+     * @return Speaker
      */
     public static Speaker_MongoDB_Impl getSpeakerById(String id) {
         Logger.debug("ID: " + id);
@@ -823,6 +840,12 @@ public class MongoPprUtils {
         return new HtmlSpeech(speechDoc);
     }
 
+    /**
+     *  Implementiert von Jonas
+     * Liefert die Rede-Informationen für die Anzeige einer Rede
+     * @param key: Rede ID
+     * @return Speech
+     */
     public static Speech getSpeechByKey(String key) {
         Document filter = new Document("speechKey", key);
         Document speechDoc = getSpeechCollection().find(filter).first();
@@ -937,6 +960,12 @@ public class MongoPprUtils {
         return speechIds;
     }
 
+    /**
+     *  Implementiert von Jonas
+     *  Liefert alle Reden zurück, die ein bestimmtes Topic haben
+     * @param topic Topic der Reden
+     * @return Liste von Reden
+     */
     public static List<Speech> getAllSpeechesWithTopic(String topic) {
         List<Speech> speechIds = new ArrayList<>();
         Document filter = new Document("analysisResults.topics.topic", topic);
@@ -946,6 +975,13 @@ public class MongoPprUtils {
         }
         return speechIds;
     }
+
+    /**
+     *  Implementiert von Jonas
+     * Liefert eine Map der POS Einträge und deren Häufigkeit für eine Rede
+     * @param speechId ID der Rede
+     * @return Map<String, Integer> POS Einträge und deren Häufigkeit
+     */
     public static Map<String, Integer> getPOSInformationCardinalitiesForSpeechById(String speechId) {
         List<Token> tokens = getHtmlSpeechByKey(speechId).getNlp().getTokens();
         Map<String, Integer> posCounts = Token.countPOS(tokens);
@@ -957,6 +993,12 @@ public class MongoPprUtils {
         return posCounts;
     }
 
+    /**
+     *  Implementiert von Jonas
+     * Liefert eine Map der Named Entities und deren Häufigkeit für eine Rede
+     * @param speechId ID der Rede
+     * @return Map<String, Integer> Named Entities und deren Häufigkeit
+     */
     public static Map<String, Integer> getNamedEntitiesInformationCardinalitiesForSpeechById(String speechId) {
         Map<String, Map<String, Integer>> namedEntitiesMapOfMaps = new HashMap<>();
 
diff --git a/src/main/java/org/texttechnologylab/project/gruppe_05_1/database/domainimpl/mdb/AgendaItem_MongoDB_Impl.java b/src/main/java/org/texttechnologylab/project/gruppe_05_1/database/domainimpl/mdb/AgendaItem_MongoDB_Impl.java
index f4c38b1..bf94d8f 100644
--- a/src/main/java/org/texttechnologylab/project/gruppe_05_1/database/domainimpl/mdb/AgendaItem_MongoDB_Impl.java
+++ b/src/main/java/org/texttechnologylab/project/gruppe_05_1/database/domainimpl/mdb/AgendaItem_MongoDB_Impl.java
@@ -4,7 +4,9 @@ import org.bson.Document;
 import org.texttechnologylab.project.gruppe_05_1.xml.speeches.Impls.AgendaItem_File_Impl;
 import org.texttechnologylab.project.gruppe_05_1.xml.speeches.Interfaces.AgendaItem;
 
-
+/**
+ * Datei implementiert von Henry
+ */
 public class AgendaItem_MongoDB_Impl extends AgendaItem_File_Impl implements AgendaItem {
     public AgendaItem_MongoDB_Impl(Document mongoDocument) {
         super(
diff --git a/src/main/java/org/texttechnologylab/project/gruppe_05_1/database/domainimpl/mdb/Session_MongoDB_Impl.java b/src/main/java/org/texttechnologylab/project/gruppe_05_1/database/domainimpl/mdb/Session_MongoDB_Impl.java
index 3088031..d66c424 100644
--- a/src/main/java/org/texttechnologylab/project/gruppe_05_1/database/domainimpl/mdb/Session_MongoDB_Impl.java
+++ b/src/main/java/org/texttechnologylab/project/gruppe_05_1/database/domainimpl/mdb/Session_MongoDB_Impl.java
@@ -4,7 +4,9 @@ import org.bson.Document;
 import org.texttechnologylab.project.gruppe_05_1.xml.speeches.Impls.Session_File_Impl;
 import org.texttechnologylab.project.gruppe_05_1.xml.speeches.Interfaces.Session;
 
-
+/**
+ * Datei implementiert von Henry
+ */
 public class Session_MongoDB_Impl extends Session_File_Impl implements Session {
 
     public Session_MongoDB_Impl(Document mongoDocument) {
diff --git a/src/main/java/org/texttechnologylab/project/gruppe_05_1/database/domainimpl/mdb/Speaker_MongoDB_Impl.java b/src/main/java/org/texttechnologylab/project/gruppe_05_1/database/domainimpl/mdb/Speaker_MongoDB_Impl.java
index 941f84e..0c96ef1 100644
--- a/src/main/java/org/texttechnologylab/project/gruppe_05_1/database/domainimpl/mdb/Speaker_MongoDB_Impl.java
+++ b/src/main/java/org/texttechnologylab/project/gruppe_05_1/database/domainimpl/mdb/Speaker_MongoDB_Impl.java
@@ -20,6 +20,7 @@ import static org.texttechnologylab.project.gruppe_05_1.database.MongoPprUtils.g
 /**
  * Datei implementiert von Valentin
  * Datei modifiziert von Jonas
+ * toTeX() und toXML() hinzugefügt von Jonas
  */
 public class Speaker_MongoDB_Impl extends Speaker implements MongoOperations<Speaker> {
     public Speaker_MongoDB_Impl createSpeakerMongoDBImpl(Document mongoDocument) {
diff --git a/src/main/java/org/texttechnologylab/project/gruppe_05_1/database/domainimpl/mdb/Speech_MongoDB_Impl.java b/src/main/java/org/texttechnologylab/project/gruppe_05_1/database/domainimpl/mdb/Speech_MongoDB_Impl.java
index 772e025..eeea7ea 100644
--- a/src/main/java/org/texttechnologylab/project/gruppe_05_1/database/domainimpl/mdb/Speech_MongoDB_Impl.java
+++ b/src/main/java/org/texttechnologylab/project/gruppe_05_1/database/domainimpl/mdb/Speech_MongoDB_Impl.java
@@ -19,6 +19,11 @@ import java.util.List;
 import static org.texttechnologylab.project.gruppe_05_1.database.MongoPprUtils.getAgendaTitle;
 import static org.texttechnologylab.project.gruppe_05_1.database.MongoPprUtils.getSessionDateTime;
 
+/**
+ * Datei implementiert von Henry
+ * Modifiziert von Jonas
+ * toTeX und toXML von Jonas
+ */
 public class Speech_MongoDB_Impl  extends Speech_File_Impl implements Speech {
     public Speech_MongoDB_Impl(Document mongoDocument, boolean includeContent) {
         super(
diff --git a/src/main/java/org/texttechnologylab/project/gruppe_05_1/database/domainimpl/mdb/speechline/Comment_MongoDB_Impl.java b/src/main/java/org/texttechnologylab/project/gruppe_05_1/database/domainimpl/mdb/speechline/Comment_MongoDB_Impl.java
index d2ca74d..ca37860 100644
--- a/src/main/java/org/texttechnologylab/project/gruppe_05_1/database/domainimpl/mdb/speechline/Comment_MongoDB_Impl.java
+++ b/src/main/java/org/texttechnologylab/project/gruppe_05_1/database/domainimpl/mdb/speechline/Comment_MongoDB_Impl.java
@@ -5,7 +5,9 @@ import org.texttechnologylab.project.gruppe_05_1.xml.speeches.Impls.Comment_File
 import org.texttechnologylab.project.gruppe_05_1.xml.speeches.Interfaces.Comment;
 import org.w3c.dom.Element;
 
-
+/*
+    * Klassen-Implementieren von Jonas
+ */
 public class Comment_MongoDB_Impl extends Comment_File_Impl implements Comment {
 
     public Comment_MongoDB_Impl(Document mongoDocument) {
diff --git a/src/main/java/org/texttechnologylab/project/gruppe_05_1/database/domainimpl/mdb/speechline/Line_MongoDB_Impl.java b/src/main/java/org/texttechnologylab/project/gruppe_05_1/database/domainimpl/mdb/speechline/Line_MongoDB_Impl.java
index d2d81f4..6b06bde 100644
--- a/src/main/java/org/texttechnologylab/project/gruppe_05_1/database/domainimpl/mdb/speechline/Line_MongoDB_Impl.java
+++ b/src/main/java/org/texttechnologylab/project/gruppe_05_1/database/domainimpl/mdb/speechline/Line_MongoDB_Impl.java
@@ -5,7 +5,9 @@ import org.texttechnologylab.project.gruppe_05_1.xml.speeches.Impls.Line_File_Im
 import org.texttechnologylab.project.gruppe_05_1.xml.speeches.Interfaces.Line;
 import org.w3c.dom.Element;
 
-
+/*
+ * Klassen-Implementieren von Jonas
+ */
 public class Line_MongoDB_Impl extends Line_File_Impl implements Line {
     public Line_MongoDB_Impl(Document mongoDocument) {
         super(
diff --git a/src/main/java/org/texttechnologylab/project/gruppe_05_1/database/domainimpl/mdb/speechline/Speaker_MongoDB_Impl.java b/src/main/java/org/texttechnologylab/project/gruppe_05_1/database/domainimpl/mdb/speechline/Speaker_MongoDB_Impl.java
index 4c6ffff..630f13f 100644
--- a/src/main/java/org/texttechnologylab/project/gruppe_05_1/database/domainimpl/mdb/speechline/Speaker_MongoDB_Impl.java
+++ b/src/main/java/org/texttechnologylab/project/gruppe_05_1/database/domainimpl/mdb/speechline/Speaker_MongoDB_Impl.java
@@ -5,6 +5,9 @@ import org.texttechnologylab.project.gruppe_05_1.xml.speeches.Impls.Speaker_File
 import org.texttechnologylab.project.gruppe_05_1.xml.speeches.Interfaces.Speaker;
 import org.w3c.dom.Element;
 
+/*
+ * Klassen-Implementieren von Jonas
+ */
 public class Speaker_MongoDB_Impl extends Speaker_File_Impl implements Speaker {
     public Speaker_MongoDB_Impl(Document mongoDocument) {
         super(
diff --git a/src/main/java/org/texttechnologylab/project/gruppe_05_1/domain/nlp/NamedEntity.java b/src/main/java/org/texttechnologylab/project/gruppe_05_1/domain/nlp/NamedEntity.java
index c7186b2..3d312e5 100644
--- a/src/main/java/org/texttechnologylab/project/gruppe_05_1/domain/nlp/NamedEntity.java
+++ b/src/main/java/org/texttechnologylab/project/gruppe_05_1/domain/nlp/NamedEntity.java
@@ -9,6 +9,7 @@ import java.util.Objects;
 import java.util.StringJoiner;
 /**
  * Datei implementiert von Valentin
+ * toXML implementiert von Jonas
  */
 public class NamedEntity {
     String  type;      // PER, LOC etc.
diff --git a/src/main/java/org/texttechnologylab/project/gruppe_05_1/domain/nlp/Pos.java b/src/main/java/org/texttechnologylab/project/gruppe_05_1/domain/nlp/Pos.java
index 81dd961..35e9162 100644
--- a/src/main/java/org/texttechnologylab/project/gruppe_05_1/domain/nlp/Pos.java
+++ b/src/main/java/org/texttechnologylab/project/gruppe_05_1/domain/nlp/Pos.java
@@ -6,6 +6,7 @@ import java.util.Objects;
 import java.util.StringJoiner;
 /**
  * Datei implementiert von Valentin
+ * toXML implementiert von Jonas
  */
 public class Pos {
     String  posValue;       // ART, NN...
diff --git a/src/main/java/org/texttechnologylab/project/gruppe_05_1/domain/nlp/Sentiment.java b/src/main/java/org/texttechnologylab/project/gruppe_05_1/domain/nlp/Sentiment.java
index bab43dd..28378de 100644
--- a/src/main/java/org/texttechnologylab/project/gruppe_05_1/domain/nlp/Sentiment.java
+++ b/src/main/java/org/texttechnologylab/project/gruppe_05_1/domain/nlp/Sentiment.java
@@ -10,6 +10,7 @@ import java.util.Objects;
 import java.util.StringJoiner;
 /**
  * Datei implementiert von Valentin
+ * toXML-Methode implementiert von Jonas
  */
 public class Sentiment {
     int     begin;
diff --git a/src/main/java/org/texttechnologylab/project/gruppe_05_1/domain/nlp/Topic.java b/src/main/java/org/texttechnologylab/project/gruppe_05_1/domain/nlp/Topic.java
index 4442d3d..de18875 100644
--- a/src/main/java/org/texttechnologylab/project/gruppe_05_1/domain/nlp/Topic.java
+++ b/src/main/java/org/texttechnologylab/project/gruppe_05_1/domain/nlp/Topic.java
@@ -7,6 +7,7 @@ import java.util.*;
 import java.util.stream.Collectors;
 /**
  * Datei implementiert von Valentin
+ * toXML-Methode implementiert von Jonas
  */
 public class Topic {
     String      topic;
diff --git a/src/main/java/org/texttechnologylab/project/gruppe_05_1/export/TeXUtil.java b/src/main/java/org/texttechnologylab/project/gruppe_05_1/export/TeXUtil.java
index 7180e6b..fb4ca6e 100644
--- a/src/main/java/org/texttechnologylab/project/gruppe_05_1/export/TeXUtil.java
+++ b/src/main/java/org/texttechnologylab/project/gruppe_05_1/export/TeXUtil.java
@@ -24,6 +24,10 @@ import static org.texttechnologylab.project.gruppe_05_1.Main.RESOURCES_DIR;
 import static org.texttechnologylab.project.gruppe_05_1.Main.TEMP_EXPORT_DIR;
 import static org.texttechnologylab.project.gruppe_05_1.database.MongoPprUtils.*;
 
+/**
+ * Utility Klasse für die Erstellung von TeX-Dateien und Konvertierung in Base64-kodierte PDF-Dateien.
+ * Implementiert von Jonas
+ */
 public class TeXUtil {
     private static final String PREAMBLE = readFileContentFromTeXDir();
     private static final String BEGIN_DOCUMENT = "\\begin{document}\n";
diff --git a/src/main/java/org/texttechnologylab/project/gruppe_05_1/export/XMLUtil.java b/src/main/java/org/texttechnologylab/project/gruppe_05_1/export/XMLUtil.java
index 64e766d..ef51dc8 100644
--- a/src/main/java/org/texttechnologylab/project/gruppe_05_1/export/XMLUtil.java
+++ b/src/main/java/org/texttechnologylab/project/gruppe_05_1/export/XMLUtil.java
@@ -19,6 +19,10 @@ import javax.xml.parsers.ParserConfigurationException;
 
 import static org.texttechnologylab.project.gruppe_05_1.database.MongoPprUtils.*;
 
+/**
+ * Utility Klasse für die Erstellung von XML-Dateien und Konvertierung in Base64-kodierte PDF-Dateien.
+ * Implementiert von Jonas
+ */
 public class XMLUtil {
     public static String documentToString(Document doc) {
         try {
diff --git a/src/main/java/org/texttechnologylab/project/gruppe_05_1/rest/FrontEndController.java b/src/main/java/org/texttechnologylab/project/gruppe_05_1/rest/FrontEndController.java
index 0c253a6..347ff10 100644
--- a/src/main/java/org/texttechnologylab/project/gruppe_05_1/rest/FrontEndController.java
+++ b/src/main/java/org/texttechnologylab/project/gruppe_05_1/rest/FrontEndController.java
@@ -23,7 +23,10 @@ import java.util.Map;
 import java.util.concurrent.CompletableFuture;
 import java.util.stream.Collectors;
 
-
+/**
+ * Controller für die Frontend‑Routen.
+ * Größtenteils implementiert von Jonas
+ */
 public class FrontEndController {
     @OpenApi(
             summary = "Get the homepage.",
@@ -138,19 +141,4 @@ public class FrontEndController {
                 "aggregatedSentiments", aggregatedSentiments
         ));
     }
-
-
-
-    /*
-     TODO: Achtung: getParlamentarierDetails gibt es ab jetzt LEDIGLICH im ParlamentarierController!
-     */
-
-    /*
-     TODO: Achtung: showSpeech gibt es ab jetzt LEDIGLICH im SpeechController!
-     */
-
-    /*
-     TODO: Achtung: showSpeech gibt es ab jetzt LEDIGLICH im SpeechController!
-     */
-
 }
diff --git a/src/main/java/org/texttechnologylab/project/gruppe_05_1/rest/SpeechesLatexExportController.java b/src/main/java/org/texttechnologylab/project/gruppe_05_1/rest/SpeechesLatexExportController.java
index abf729e..bf00fc0 100644
--- a/src/main/java/org/texttechnologylab/project/gruppe_05_1/rest/SpeechesLatexExportController.java
+++ b/src/main/java/org/texttechnologylab/project/gruppe_05_1/rest/SpeechesLatexExportController.java
@@ -14,6 +14,10 @@ import java.util.List;
 
 import static org.texttechnologylab.project.gruppe_05_1.export.TeXUtil.*;
 
+/**
+ * Controller für die Endpunkte zum Export von Reden als PDF.
+ * Implementiert von Jonas
+ */
 public class SpeechesLatexExportController {
     @OpenApi(
             summary = "Get a speech as a PDF",
diff --git a/src/main/java/org/texttechnologylab/project/gruppe_05_1/rest/SpeechesXMLExportController.java b/src/main/java/org/texttechnologylab/project/gruppe_05_1/rest/SpeechesXMLExportController.java
index 2b73910..87be9a0 100644
--- a/src/main/java/org/texttechnologylab/project/gruppe_05_1/rest/SpeechesXMLExportController.java
+++ b/src/main/java/org/texttechnologylab/project/gruppe_05_1/rest/SpeechesXMLExportController.java
@@ -16,6 +16,10 @@ import java.util.List;
 import static org.texttechnologylab.project.gruppe_05_1.export.XMLUtil.*;
 import static org.texttechnologylab.project.gruppe_05_1.export.TeXUtil.*;
 
+/**
+ * Controller für die Endpunkte zum Export von Reden als XML.
+ * Implementiert von Jonas
+ */
 public class SpeechesXMLExportController {
     @OpenApi(
             summary = "Get a speech as XML",
diff --git a/src/main/java/org/texttechnologylab/project/gruppe_05_1/util/Logger.java b/src/main/java/org/texttechnologylab/project/gruppe_05_1/util/Logger.java
index 796498b..da9dea8 100644
--- a/src/main/java/org/texttechnologylab/project/gruppe_05_1/util/Logger.java
+++ b/src/main/java/org/texttechnologylab/project/gruppe_05_1/util/Logger.java
@@ -4,6 +4,10 @@ import java.time.LocalTime;
 import java.time.format.DateTimeFormatter;
 import static org.texttechnologylab.project.gruppe_05_1.Main.DEBUG_LOGGING;
 
+/**
+ * Logger Klasse für die Ausgabe von Lognachrichten
+ * Implementiert von Jonas
+ */
 public class Logger {
     private static final DateTimeFormatter DATE_TIME_FORMATTER = DateTimeFormatter.ofPattern("HH:mm:ss");
     // info, warn, error with message and colors and datetime
diff --git a/src/main/java/org/texttechnologylab/project/gruppe_05_1/util/PPRUtils.java b/src/main/java/org/texttechnologylab/project/gruppe_05_1/util/PPRUtils.java
index c26788a..565bb83 100644
--- a/src/main/java/org/texttechnologylab/project/gruppe_05_1/util/PPRUtils.java
+++ b/src/main/java/org/texttechnologylab/project/gruppe_05_1/util/PPRUtils.java
@@ -415,6 +415,12 @@ public abstract class PPRUtils {
         return doc;
     }
 
+    /**
+     * Listet die Dateien im gegebenen Verzeichnis auf.
+     * Implementiert von Jonas
+     * @param directory Verzeichnis
+     * @return Liste der Dateinamen
+     */
     public static ArrayList<String> listFilesInDirectory(String directory) {
         File folder = new File(directory);
         File[] files = folder.listFiles();
@@ -507,6 +513,12 @@ public abstract class PPRUtils {
         return newProtocols;
     }
 
+    /**
+     * Listet die Fraktionen von einer Liste an Membern auf
+     * Implementiert von Jonas
+     * @param mdbList Liste der Mitglieder
+     * @return Liste der Fraktionen
+     */
     public static ArrayList<String> listFractionsFromMembers(List<Parlamentarier> mdbList) {
         ArrayList<String> fractions = new ArrayList<>();
         for (Parlamentarier parlamentarier : mdbList) {
@@ -523,6 +535,13 @@ public abstract class PPRUtils {
         return fractions;
     }
 
+    /**
+     * Fetched das Bild eines Mitglieds aus der Bundestagsdatenbank und gibt es als Base64-String zurück
+     * Implementiert von Jonas
+     * @param inputString Name des Mitglieds
+     * @return Base64-String des Bildes
+     * @throws IOException
+     */
     public static String fetchMemberImageBase64FromNameString(String inputString) throws IOException {
         // Step 1: Send POST request
         String urlString = "https://bilddatenbank.bundestag.de/ajax/picture-result";
@@ -579,6 +598,12 @@ public abstract class PPRUtils {
         return "Error: Unable to retrieve image";
     }
 
+    /**
+     * Gibt die Session-Cookies zurück, die für die Requests der Bildersuche benötigt werden
+     * Implementiert von Jonas
+     * @return Session-Cookies
+     * @throws IOException
+     */
     public static String getSessionCookies() throws IOException {
         String urlString = "https://bilddatenbank.bundestag.de/search/picture-result?query=Angela+Merkel&sortVal=2";
         URL url = new URL(urlString);