diff --git a/HAN.Repositories/CourseComponentRepository.cs b/HAN.Repositories/CourseComponentRepository.cs
index f7ecdee..74a451f 100644
--- a/HAN.Repositories/CourseComponentRepository.cs
+++ b/HAN.Repositories/CourseComponentRepository.cs
@@ -16,8 +16,8 @@ public override void Add(TEntity entity)
         if (entity == null)
             throw new ArgumentNullException(nameof(entity));
         
-        entity.EvlIds = ValidateAndResolveEvlIds(entity.EvlIds);
-        entity.FileIds = ValidateAndResolveFileIds(entity.FileIds);
+        entity.EvlIds = ValidateEvls(entity.EvlIds);
+        entity.FileIds = ValidateFiles(entity.FileIds);
 
         Entity.Add(entity);
         _context.SaveChanges();
@@ -111,7 +111,7 @@ public void AddFileToCourseComponent(int courseComponentId, int fileId)
         }
     }
     
-    private List<int> ValidateAndResolveEvlIds(List<int> evlIds)
+    private List<int> ValidateEvls(List<int> evlIds)
     {
         if (evlIds == null)
             throw new ArgumentNullException(nameof(evlIds));
@@ -126,7 +126,7 @@ private List<int> ValidateAndResolveEvlIds(List<int> evlIds)
         return evlIds;
     }
 
-    private List<int> ValidateAndResolveFileIds(List<int> fileIds)
+    private List<int> ValidateFiles(List<int> fileIds)
     {
         if (fileIds == null)
             throw new ArgumentNullException(nameof(fileIds));
diff --git a/HAN.Services/CourseValidationService.cs b/HAN.Services/CourseValidationService.cs
index 537eff8..a7b74d3 100644
--- a/HAN.Services/CourseValidationService.cs
+++ b/HAN.Services/CourseValidationService.cs
@@ -1,5 +1,4 @@
 using HAN.Services.DTOs;
-using HAN.Services.DTOs.CourseComponents;
 using HAN.Services.Interfaces;
 using HAN.Services.Validation;
 
@@ -8,18 +7,15 @@ namespace HAN.Services;
 public class CourseValidationService : ICourseValidationService
 {
     private readonly ICourseService _courseService;
-    private readonly CourseComponentService _courseComponentService;
     private readonly ICourseCompletenessValidator _completenessValidator;
     private readonly ICourseOrderValidator _orderValidator;
 
     public CourseValidationService(
         ICourseService courseService,
-        CourseComponentService courseComponentService,
         ICourseCompletenessValidator completenessValidator,
         ICourseOrderValidator orderValidator)
     {
         _courseService = courseService;
-        _courseComponentService = courseComponentService;
         _completenessValidator = completenessValidator;
         _orderValidator = orderValidator;
     }
diff --git a/README.md b/README.md
index c672c06..2349675 100644
--- a/README.md
+++ b/README.md
@@ -3,7 +3,8 @@ This project is a course generator and validator system.
 It is a project for the course I-OOSE at the HAN University of Applied Sciences.
 
 ## Architecture
-![Design-phase-ClassDiagram-Page-9 drawio (1)](https://github.com/user-attachments/assets/d0fe015c-3091-4917-b92d-c4c4e63e3599)
+![Design-phase-ClassDiagram-Page-9 drawio (2)](https://github.com/user-attachments/assets/048613d3-8df4-4275-b0f1-0bb635575135)
+
 
 > [!IMPORTANT]  
 > Since the architecture is experimental, it's currently already deprecated, and will be changed over time. 
@@ -22,6 +23,27 @@ It is a project for the course I-OOSE at the HAN University of Applied Sciences.
 [![GitHub](https://img.shields.io/badge/GitHub-Code_Hosting-181717?style=for-the-badge&logo=github&logoColor=white)](https://github.com/)
 [![Obsidian](https://img.shields.io/badge/Obsidian-Knowledge_Management-483699?style=for-the-badge&logo=obsidian&logoColor=white)](https://obsidian.md/)
 
+## Preview
+
+### Home
+![image](https://github.com/user-attachments/assets/589f6a74-44b3-404f-8d7c-e8a373c01f9d)
+
+### Easily create schedules!
+![image](https://github.com/user-attachments/assets/afcfddbd-c9c2-439e-a179-fe3bf7d01348)
+
+### And get instant feedback on your courses' schedule quality!
+![image](https://github.com/user-attachments/assets/b18fdab6-54e0-4b7a-bac0-53b0ea4d79c0)
+
+### Save grades directly in Blockchain to ensure transparancy!
+![image](https://github.com/user-attachments/assets/b74d0e72-d001-4e5c-bdc6-9ef06796db9f)
+
+### Then, you can always see your Blockchain history
+![image](https://github.com/user-attachments/assets/1c698172-75cf-40dc-a1f5-9a4f5af3e3d4)
+
+### And, always live monitoring on the Blockchain network!
+![image](https://github.com/user-attachments/assets/6f0f88f1-cc14-4280-83a7-d07bf86c457f)
+
+
 ## Authors
 - [Reinout Wijnholds](https://github.com/ReinoutWW)
 - [Wob Jelsma](https://github.com/wobedydob)