diff --git a/ScrumTaskboard/Controllers/CategoriesController.cs b/ScrumTaskboard/Controllers/CategoriesController.cs
index 0790e30..eef87be 100644
--- a/ScrumTaskboard/Controllers/CategoriesController.cs
+++ b/ScrumTaskboard/Controllers/CategoriesController.cs
@@ -26,7 +26,15 @@ namespace ScrumTaskboard.Controllers
         }
 
         // GET: api/category
-        #nullable enable
+        /// <summary>
+        /// Retrieve all Categories in DB.
+        /// Result can be filtered using the Params.
+        /// </summary>
+        /// <param name="title">string value</param>
+        /// <param name="projectid">ID of created Project</param>
+        /// <param name="color">string value</param>
+        /// <returns>JSON list of all matching Categories</returns>
+#nullable enable
         [HttpGet]
         public async Task<ActionResult<IEnumerable<ScrumCategory>>> GetCategory([FromQuery]string? title, [FromQuery]int? projectid, [FromQuery] string? color)
         {
@@ -48,9 +56,14 @@ namespace ScrumTaskboard.Controllers
 
             return await filtered.ToListAsync();
         }
-        #nullable disable
+#nullable disable
 
         // GET: api/category/1
+        /// <summary>
+        /// Retrieve the Category by it's ID.
+        /// </summary>
+        /// <param name="id">ID of searched Category</param>
+        /// <returns>JSON object</returns>
         [HttpGet("{id}")]
         public async Task<ActionResult<ScrumCategory>> GetCategory(int id)
         {
@@ -65,6 +78,12 @@ namespace ScrumTaskboard.Controllers
         }
 
         // PUT: api/category/1
+        /// <summary>
+        /// Update the Category identified by it's ID.
+        /// </summary>
+        /// <param name="id">to edit Category's ID</param>
+        /// <param name="category">modified Category</param>
+        /// <returns>the proper status code</returns>
         [HttpPut("{id}")]
         public async Task<IActionResult> PutCategory(int id, ScrumCategory category)
         {
@@ -99,6 +118,11 @@ namespace ScrumTaskboard.Controllers
         }
 
         // POST: api/category
+        /// <summary>
+        /// Create a new Category.
+        /// </summary>
+        /// <param name="category">new Category</param>
+        /// <returns>the proper status code</returns>
         [HttpPost]
         public async Task<ActionResult<ScrumUserstory>> PostCategory(ScrumCategory category)
         {
@@ -110,6 +134,11 @@ namespace ScrumTaskboard.Controllers
         }
 
         // DELETE: api/category/1
+        /// <summary>
+        /// Delete a Category identified by it's ID.
+        /// </summary>
+        /// <param name="id">to delete Category's ID</param>
+        /// <returns>the proper status code</returns>
         [HttpDelete("{id}")]
         public async Task<ActionResult<ScrumCategory>> DeleteCategory(int id)
         {
diff --git a/ScrumTaskboard/Controllers/ProjectsController.cs b/ScrumTaskboard/Controllers/ProjectsController.cs
index 5c488f4..d57f637 100644
--- a/ScrumTaskboard/Controllers/ProjectsController.cs
+++ b/ScrumTaskboard/Controllers/ProjectsController.cs
@@ -26,7 +26,14 @@ namespace ScrumTaskboard.Controllers
         }
 
         // GET: api/projects
-        #nullable enable
+        /// <summary>
+        /// Retrieve all Projects in DB.
+        /// Result can be filtered using the Params.
+        /// </summary>
+        /// <param name="title">string value</param>
+        /// <param name="isprivate">boolean value</param>
+        /// <returns>JSON list of all matching Projects</returns>
+#nullable enable
         [HttpGet]
         public async Task<ActionResult<IEnumerable<ScrumProject>>> GetProject([FromQuery]string? title, [FromQuery]bool? isprivate)
         {
@@ -43,9 +50,14 @@ namespace ScrumTaskboard.Controllers
 
             return await filtered.ToListAsync();
         }
-        #nullable disable
+#nullable disable
 
         // GET: api/projects/5
+        /// <summary>
+        /// Retrieve the Project by it's ID.
+        /// </summary>
+        /// <param name="id">ID of searched Project</param>
+        /// <returns>JSON object</returns>
         [HttpGet("{id}")]
         public async Task<ActionResult<ScrumProject>> GetProjects(int id)
         {
@@ -60,6 +72,12 @@ namespace ScrumTaskboard.Controllers
         }
 
         // PUT: api/Project/5
+        /// <summary>
+        /// Update the Project identified by it's ID.
+        /// </summary>
+        /// <param name="id">to edit Project's ID</param>
+        /// <param name="projects">modified Project</param>
+        /// <returns>the proper status code</returns>
         [HttpPut("{id}")]
         public async Task<IActionResult> PutProject(int id, ScrumProject projects)
         {
@@ -94,6 +112,11 @@ namespace ScrumTaskboard.Controllers
         }
 
         // POST: api/Project
+        /// <summary>
+        /// Create a new Project.
+        /// </summary>
+        /// <param name="projects">new Project</param>
+        /// <returns>the proper status code</returns>
         [HttpPost]
         public async Task<ActionResult<ScrumProject>> PostProject(ScrumProject projects)
         {
@@ -105,6 +128,11 @@ namespace ScrumTaskboard.Controllers
         }
 
         // DELETE: api/Project/5
+        /// <summary>
+        /// Delete a Project identified by it's ID.
+        /// </summary>
+        /// <param name="id">to delete Project's ID</param>
+        /// <returns>the proper status code</returns>
         [HttpDelete("{id}")]
         public async Task<ActionResult<ScrumProject>> DeleteProject(int id)
         {
diff --git a/ScrumTaskboard/Controllers/SprintsController.cs b/ScrumTaskboard/Controllers/SprintsController.cs
index 919633f..26eaba8 100644
--- a/ScrumTaskboard/Controllers/SprintsController.cs
+++ b/ScrumTaskboard/Controllers/SprintsController.cs
@@ -26,7 +26,16 @@ namespace ScrumTaskboard.Controllers
         }
 
         // GET: api/sprint
-        #nullable enable
+        /// <summary>
+        /// Retrieve all Sprints in DB.
+        /// Result can be filtered using the Params.
+        /// </summary>
+        /// <param name="title">string value</param>
+        /// <param name="projectid">ID of created Project</param>
+        /// <param name="startDate">DateTime value</param>
+        /// <param name="endDate">DateTime value</param>
+        /// <returns>JSON list of all matching Sprints</returns>
+#nullable enable
         [HttpGet]
         public async Task<ActionResult<IEnumerable<ScrumSprint>>> GetSprint([FromQuery]string? title, [FromQuery]int? projectid, [FromQuery]DateTime? startDate, [FromQuery]DateTime? endDate)
         {
@@ -51,9 +60,14 @@ namespace ScrumTaskboard.Controllers
 
             return await filtered.ToListAsync();
         }
-        #nullable disable
+#nullable disable
 
         // GET: api/sprint/5
+        /// <summary>
+        /// Retrieve the Sprint by it's ID.
+        /// </summary>
+        /// <param name="id">ID of searched Sprint</param>
+        /// <returns>JSON object</returns>
         [HttpGet("{id}")]
         public async Task<ActionResult<ScrumSprint>> GetSprint(int id)
         {
@@ -68,6 +82,12 @@ namespace ScrumTaskboard.Controllers
         }
 
         // PUT: api/sprint/5
+        /// <summary>
+        /// Update the Sprint identified by it's ID.
+        /// </summary>
+        /// <param name="id">to edit Sprint's ID</param>
+        /// <param name="sprint">modified Sprint</param>
+        /// <returns>the proper status code</returns>
         [HttpPut("{id}")]
         public async Task<IActionResult> PutSprint(int id, ScrumSprint sprint)
         {
@@ -102,6 +122,11 @@ namespace ScrumTaskboard.Controllers
         }
 
         // POST: api/Sprint
+        /// <summary>
+        /// Create a new Sprint.
+        /// </summary>
+        /// <param name="sprint">new Sprint</param>
+        /// <returns>the proper status code</returns>
         [HttpPost]
         public async Task<ActionResult<ScrumSprint>> PostSprint(ScrumSprint sprint)
         {
@@ -113,6 +138,11 @@ namespace ScrumTaskboard.Controllers
         }
 
         // DELETE: api/Sprint/5
+        /// <summary>
+        /// Delete a Sprint identified by it's ID.
+        /// </summary>
+        /// <param name="id">to delete Sprint's ID</param>
+        /// <returns>the proper status code</returns>
         [HttpDelete("{id}")]
         public async Task<ActionResult<ScrumSprint>> DeleteSprint(int id)
         {
diff --git a/ScrumTaskboard/Controllers/StatusController.cs b/ScrumTaskboard/Controllers/StatusController.cs
index 08830ac..926347b 100644
--- a/ScrumTaskboard/Controllers/StatusController.cs
+++ b/ScrumTaskboard/Controllers/StatusController.cs
@@ -25,7 +25,13 @@ namespace ScrumTaskboard.Controllers
         }
 
         // GET: api/status
-        #nullable enable
+        /// <summary>
+        /// Retrieve all Status in DB.
+        /// Result can be filtered using the Params.
+        /// </summary>
+        /// <param name="title">string value</param>
+        /// <returns>JSON list of all matching status</returns>
+#nullable enable
         [HttpGet]
         public async Task<ActionResult<IEnumerable<ScrumStatus>>> GetStatus([FromQuery]string? title)
         {
@@ -38,9 +44,14 @@ namespace ScrumTaskboard.Controllers
 
             return await filtered.ToListAsync();
         }
-        #nullable enable
+#nullable enable
 
         // GET: api/status/1
+        /// <summary>
+        /// Retrieve the Status by it's ID.
+        /// </summary>
+        /// <param name="id">ID of searched Status</param>
+        /// <returns>JSON object</returns>
         [HttpGet("{id}")]
         public async Task<ActionResult<ScrumStatus>> GetStatus(int id)
         {
@@ -55,6 +66,12 @@ namespace ScrumTaskboard.Controllers
         }
 
         // PUT: api/status/1
+        /// <summary>
+        /// Update the Status identified by it's ID.
+        /// </summary>
+        /// <param name="id">to edit Status' ID</param>
+        /// <param name="userstory">modified Userstory</param>
+        /// <returns>the proper status code</returns>
         [HttpPut("{id}")]
         public async Task<IActionResult> PutStatus(int id, ScrumStatus userstory)
         {
@@ -89,6 +106,11 @@ namespace ScrumTaskboard.Controllers
         }
 
         // POST: api/status
+        /// <summary>
+        /// Create a new Status.
+        /// </summary>
+        /// <param name="userstory">new Userstory</param>
+        /// <returns>the proper status code</returns>
         [HttpPost]
         public async Task<ActionResult<ScrumStatus>> PostTask(ScrumStatus userstory)
         {
@@ -100,6 +122,11 @@ namespace ScrumTaskboard.Controllers
         }
 
         // DELETE: api/status/1
+        /// <summary>
+        /// Create a new Status.
+        /// </summary>
+        /// <param name="id">to delete Status' ID</param>
+        /// <returns>the proper status code</returns>
         [HttpDelete("{id}")]
         public async Task<ActionResult<ScrumStatus>> DeleteStatus(int id)
         {
diff --git a/ScrumTaskboard/Controllers/TasksController.cs b/ScrumTaskboard/Controllers/TasksController.cs
index 91e9794..392c680 100644
--- a/ScrumTaskboard/Controllers/TasksController.cs
+++ b/ScrumTaskboard/Controllers/TasksController.cs
@@ -26,7 +26,18 @@ namespace ScrumTaskboard.Controllers
         }
 
         // GET: api/tasks
-        #nullable enable
+        /// <summary>
+        /// Retrieve all Tasks in DB.
+        /// Result can be filtered using the Params.
+        /// </summary>
+        /// <param name="title">string value</param>
+        /// <param name="userstoryid">ID of created Userstory</param>
+        /// <param name="statusid">ID of created Status</param>
+        /// <param name="assignedtoid">ID of the Assignedto</param>
+        /// <param name="projectid">ID of created Project</param>
+        /// <param name="priority">enum value</param>
+        /// <returns>JSON list of all matching Tasks</returns>
+#nullable enable
         [HttpGet]
         public async Task<ActionResult<IEnumerable<ScrumTask>>> GetTasks([FromQuery]string? title, [FromQuery]int? userstoryid, [FromQuery]int? statusid, [FromQuery]int? assignedtoid, [FromQuery]int? projectid, [FromQuery]ScrumPrio? priority)
         {
@@ -60,9 +71,14 @@ namespace ScrumTaskboard.Controllers
 
             return await filtered.ToListAsync();
         }
-        #nullable disable
+#nullable disable
 
         // GET: api/tasks/5
+        /// <summary>
+        /// Retrieve the Task by it's ID.
+        /// </summary>
+        /// <param name="id">ID of searched Task</param>
+        /// <returns>JSON object</returns>
         [HttpGet("{id}")]
         public async Task<ActionResult<ScrumTask>> GetTask(int id)
         {
@@ -77,6 +93,12 @@ namespace ScrumTaskboard.Controllers
         }
 
         // PUT: api/tasks/5
+        /// <summary>
+        /// Update the Task identified by it's ID.
+        /// </summary>
+        /// <param name="id">to edit Task's ID</param>
+        /// <param name="task">modified Task</param>
+        /// <returns>the proper status code</returns>
         [HttpPut("{id}")]
         public async Task<IActionResult> PutTask(int id, ScrumTask task)
         {
@@ -111,6 +133,11 @@ namespace ScrumTaskboard.Controllers
         }
 
         // POST: api/tasks
+        /// <summary>
+        /// Create a new Task.
+        /// </summary>
+        /// <param name="task">new Task</param>
+        /// <returns>the proper status code</returns>
         [HttpPost]
         public async Task<ActionResult<ScrumTask>> PostTask(ScrumTask task)
         {
@@ -122,6 +149,11 @@ namespace ScrumTaskboard.Controllers
         }
 
         // DELETE: api/tasks/5
+        /// <summary>
+        /// Delete a Task identified by it's ID.
+        /// </summary>
+        /// <param name="id">to delete Task's ID</param>
+        /// <returns>the proper status code</returns>
         [HttpDelete("{id}")]
         public async Task<ActionResult<ScrumTask>> DeleteTask(int id)
         {
diff --git a/ScrumTaskboard/Controllers/UsersController.cs b/ScrumTaskboard/Controllers/UsersController.cs
index 014ddfb..284c7c2 100644
--- a/ScrumTaskboard/Controllers/UsersController.cs
+++ b/ScrumTaskboard/Controllers/UsersController.cs
@@ -25,7 +25,13 @@ namespace ScrumTaskboard.Controllers
         }
 
         // GET: api/sprint
-        #nullable enable
+        /// <summary>
+        /// Retrieve all Users in DB.
+        /// Result can be filtered using the Params.
+        /// </summary>
+        /// <param name="name">string value</param>
+        /// <returns>JSON list of all matching Users</returns>
+#nullable enable
         [HttpGet]
         public async Task<ActionResult<IEnumerable<ScrumUser>>> GetUser([FromQuery]string? name)
         {
@@ -37,9 +43,14 @@ namespace ScrumTaskboard.Controllers
 
             return await filtered.ToListAsync();
         }
-        #nullable disable
+#nullable disable
 
         // GET: api/sprint/5
+        /// <summary>
+        /// Retrieve the User by it's ID.
+        /// </summary>
+        /// <param name="id">ID of searched User</param>
+        /// <returns>JSON object</returns>
         [HttpGet("{id}")]
         public async Task<ActionResult<ScrumUser>> GetUser(int id)
         {
@@ -54,6 +65,12 @@ namespace ScrumTaskboard.Controllers
         }
 
         // PUT: api/sprint/5
+        /// <summary>
+        /// Update the User identified by it's ID.
+        /// </summary>
+        /// <param name="id">to edit User's ID</param>
+        /// <param name="sprint">modified Sprint</param>
+        /// <returns>the proper status code</returns>
         [HttpPut("{id}")]
         public async Task<IActionResult> PutUser(int id, ScrumUser sprint)
         {
@@ -88,6 +105,11 @@ namespace ScrumTaskboard.Controllers
         }
 
         // POST: api/User
+        /// <summary>
+        /// Create a new User.
+        /// </summary>
+        /// <param name="sprint">new Sprint</param>
+        /// <returns>the proper status code</returns>
         [HttpPost]
         public async Task<ActionResult<ScrumUser>> PostUser(ScrumUser sprint)
         {
@@ -99,6 +121,11 @@ namespace ScrumTaskboard.Controllers
         }
 
         // DELETE: api/User/5
+        /// <summary>
+        /// Delete a User identified by it's ID.
+        /// </summary>
+        /// <param name="id">to delete User's ID</param>
+        /// <returns>the proper status code</returns>
         [HttpDelete("{id}")]
         public async Task<ActionResult<ScrumUser>> DeleteUser(int id)
         {
diff --git a/ScrumTaskboard/Controllers/UserstoriesController.cs b/ScrumTaskboard/Controllers/UserstoriesController.cs
index 898216e..65aff6b 100644
--- a/ScrumTaskboard/Controllers/UserstoriesController.cs
+++ b/ScrumTaskboard/Controllers/UserstoriesController.cs
@@ -26,7 +26,19 @@ namespace ScrumTaskboard.Controllers
         }
 
         // GET: api/userstories
-        #nullable enable
+        /// <summary>
+        /// Retrieve all Userstories in DB.
+        /// Result can be filtered using the Params.
+        /// </summary>
+        /// <param name="title">string value</param>
+        /// <param name="statusid">ID of created Status</param>
+        /// <param name="categoryid">ID of created Category</param>
+        /// <param name="createdbyid">ID of the Author</param>
+        /// <param name="projectid">ID of created Project</param>
+        /// <param name="sprintid">ID of created Project</param>
+        /// <param name="priority">enum value</param>
+        /// <returns>JSON list of all matching Userstories</returns>
+#nullable enable
         [HttpGet]
         public async Task<ActionResult<IEnumerable<ScrumUserstory>>> GetUserstory([FromQuery]string? title, [FromQuery]int? statusid, [FromQuery]int? categoryid, [FromQuery]int? createdbyid, [FromQuery]int? projectid, [FromQuery]int? sprintid, [FromQuery]ScrumPrio? priority)
         {
@@ -64,9 +76,14 @@ namespace ScrumTaskboard.Controllers
 
             return await filtered.ToListAsync();
         }
-        #nullable disable
+#nullable disable
 
         // GET: api/userstories/1
+        /// <summary>
+        /// Retrieve the Userstory by it's ID.
+        /// </summary>
+        /// <param name="id">ID of searched Userstory</param>
+        /// <returns>JSON object</returns>
         [HttpGet("{id}")]
         public async Task<ActionResult<ScrumUserstory>> GetUserstory(int id)
         {
@@ -81,6 +98,12 @@ namespace ScrumTaskboard.Controllers
         }
 
         // PUT: api/userstories/1
+        /// <summary>
+        /// Update the Userstory identified by it's ID.
+        /// </summary>
+        /// <param name="id">to edit Userstory's ID</param>
+        /// <param name="userstory">modified Userstory</param>
+        /// <returns>the proper status code</returns>
         [HttpPut("{id}")]
         public async Task<IActionResult> PutUserstory(int id, ScrumUserstory userstory)
         {
@@ -115,6 +138,11 @@ namespace ScrumTaskboard.Controllers
         }
 
         // POST: api/userstories
+        /// <summary>
+        /// Create a new Userstory.
+        /// </summary>
+        /// <param name="userstory">new Userstory</param>
+        /// <returns>the proper status code</returns>
         [HttpPost]
         public async Task<ActionResult<ScrumUserstory>> PostTask(ScrumUserstory userstory)
         {
@@ -126,6 +154,11 @@ namespace ScrumTaskboard.Controllers
         }
 
         // DELETE: api/userstories/1
+        /// <summary>
+        /// Delete a Userstory identified by it's ID.
+        /// </summary>
+        /// <param name="id">to delete Userstory's ID</param>
+        /// <returns>the proper status code</returns>
         [HttpDelete("{id}")]
         public async Task<ActionResult<ScrumUserstory>> DeleteUserstory(int id)
         {