diff --git a/data/RemoteData/DAO/User.cs b/data/RemoteData/DAO/User.cs
index 3ba3e0f..0c86315 100644
--- a/data/RemoteData/DAO/User.cs
+++ b/data/RemoteData/DAO/User.cs
@@ -6,13 +6,14 @@ using System.Threading.Tasks;
 
 namespace Data.RemoteData.DAO
 {
-    public class UserDao 
+    
+    public class UserDao
     {
-        public string FIO { get; set; }
-        public Guid Guid { get; set; }
+        public required string FIO { get; set; }
+        public Guid UserGuid { get; set; }
+        public GroupDao Group { get; set; }
+        public required int GroupID { get; set; }
+        public List<PresnceDao> Presences { get; set; } = new List<PresnceDao>();
 
-        public virtual GroupDao Group { get; set; }
-
-      
     }
-}
+}
\ No newline at end of file
diff --git a/data/RemoteData/RemoteDataBaseContext.cs b/data/RemoteData/RemoteDataBaseContext.cs
index 4977c56..bc2ee5b 100644
--- a/data/RemoteData/RemoteDataBaseContext.cs
+++ b/data/RemoteData/RemoteDataBaseContext.cs
@@ -17,7 +17,7 @@ namespace data.RemoteData
         protected override void OnModelCreating(ModelBuilder modelBuilder)
         {
             modelBuilder.Entity<GroupDao>().HasKey(group => group.Id);
-            modelBuilder.Entity<UserDao>().HasKey(user => user.Guid);
+            modelBuilder.Entity<UserDao>().HasKey(user => user.UserGuid);
             modelBuilder.Entity<PresnceDao>().HasKey(presence => new {
                 presence.UserGuid,
                 presence.IsAttendensy,
diff --git a/data/bin/Debug/net8.0/data.dll b/data/bin/Debug/net8.0/data.dll
index b5e10fc..16c7b96 100644
Binary files a/data/bin/Debug/net8.0/data.dll and b/data/bin/Debug/net8.0/data.dll differ
diff --git a/data/bin/Debug/net8.0/data.pdb b/data/bin/Debug/net8.0/data.pdb
index f307fd9..aecd83a 100644
Binary files a/data/bin/Debug/net8.0/data.pdb and b/data/bin/Debug/net8.0/data.pdb differ
diff --git a/data/obj/Debug/net8.0/data.AssemblyInfo.cs b/data/obj/Debug/net8.0/data.AssemblyInfo.cs
index 6b5667c..8135380 100644
--- a/data/obj/Debug/net8.0/data.AssemblyInfo.cs
+++ b/data/obj/Debug/net8.0/data.AssemblyInfo.cs
@@ -13,10 +13,10 @@ using System.Reflection;
 [assembly: System.Reflection.AssemblyCompanyAttribute("data")]
 [assembly: System.Reflection.AssemblyConfigurationAttribute("Debug")]
 [assembly: System.Reflection.AssemblyFileVersionAttribute("1.0.0.0")]
-[assembly: System.Reflection.AssemblyInformationalVersionAttribute("1.0.0+5124d95d3daae0a4fb8c67dff74fc5e25268f700")]
+[assembly: System.Reflection.AssemblyInformationalVersionAttribute("1.0.0+d14f30b58346596546b30dc44d61ffae0ddb1b9a")]
 [assembly: System.Reflection.AssemblyProductAttribute("data")]
 [assembly: System.Reflection.AssemblyTitleAttribute("data")]
 [assembly: System.Reflection.AssemblyVersionAttribute("1.0.0.0")]
 
-// Generated by the MSBuild WriteCodeFragment class.
+// Создано классом WriteCodeFragment MSBuild.
 
diff --git a/data/obj/Debug/net8.0/data.AssemblyInfoInputs.cache b/data/obj/Debug/net8.0/data.AssemblyInfoInputs.cache
index f7d7a56..3a4d4d5 100644
--- a/data/obj/Debug/net8.0/data.AssemblyInfoInputs.cache
+++ b/data/obj/Debug/net8.0/data.AssemblyInfoInputs.cache
@@ -1 +1 @@
-f79085eebfdd7035c27d101a32916355d93e5f513df432f9a3075f4253aa1b2c
+da6e5904672a15e9743c288bc5b94fbac57fa66388ba1cb5e535fe3bfb0750aa
diff --git a/data/obj/Debug/net8.0/data.dll b/data/obj/Debug/net8.0/data.dll
index b5e10fc..16c7b96 100644
Binary files a/data/obj/Debug/net8.0/data.dll and b/data/obj/Debug/net8.0/data.dll differ
diff --git a/data/obj/Debug/net8.0/data.pdb b/data/obj/Debug/net8.0/data.pdb
index f307fd9..aecd83a 100644
Binary files a/data/obj/Debug/net8.0/data.pdb and b/data/obj/Debug/net8.0/data.pdb differ
diff --git a/data/obj/Debug/net8.0/ref/data.dll b/data/obj/Debug/net8.0/ref/data.dll
index b7b478d..d5e035f 100644
Binary files a/data/obj/Debug/net8.0/ref/data.dll and b/data/obj/Debug/net8.0/ref/data.dll differ
diff --git a/data/obj/Debug/net8.0/refint/data.dll b/data/obj/Debug/net8.0/refint/data.dll
index b7b478d..d5e035f 100644
Binary files a/data/obj/Debug/net8.0/refint/data.dll and b/data/obj/Debug/net8.0/refint/data.dll differ
diff --git a/domain/bin/Debug/net8.0/data.dll b/domain/bin/Debug/net8.0/data.dll
index b5e10fc..16c7b96 100644
Binary files a/domain/bin/Debug/net8.0/data.dll and b/domain/bin/Debug/net8.0/data.dll differ
diff --git a/domain/bin/Debug/net8.0/data.pdb b/domain/bin/Debug/net8.0/data.pdb
index f307fd9..aecd83a 100644
Binary files a/domain/bin/Debug/net8.0/data.pdb and b/domain/bin/Debug/net8.0/data.pdb differ
diff --git a/domain/bin/Debug/net8.0/domain.dll b/domain/bin/Debug/net8.0/domain.dll
index 01b9861..17432bf 100644
Binary files a/domain/bin/Debug/net8.0/domain.dll and b/domain/bin/Debug/net8.0/domain.dll differ
diff --git a/domain/bin/Debug/net8.0/domain.pdb b/domain/bin/Debug/net8.0/domain.pdb
index 222daa3..865bf35 100644
Binary files a/domain/bin/Debug/net8.0/domain.pdb and b/domain/bin/Debug/net8.0/domain.pdb differ
diff --git a/domain/obj/Debug/net8.0/domain.AssemblyInfo.cs b/domain/obj/Debug/net8.0/domain.AssemblyInfo.cs
index ab7ec48..df6a433 100644
--- a/domain/obj/Debug/net8.0/domain.AssemblyInfo.cs
+++ b/domain/obj/Debug/net8.0/domain.AssemblyInfo.cs
@@ -13,10 +13,10 @@ using System.Reflection;
 [assembly: System.Reflection.AssemblyCompanyAttribute("domain")]
 [assembly: System.Reflection.AssemblyConfigurationAttribute("Debug")]
 [assembly: System.Reflection.AssemblyFileVersionAttribute("1.0.0.0")]
-[assembly: System.Reflection.AssemblyInformationalVersionAttribute("1.0.0+5124d95d3daae0a4fb8c67dff74fc5e25268f700")]
+[assembly: System.Reflection.AssemblyInformationalVersionAttribute("1.0.0+d14f30b58346596546b30dc44d61ffae0ddb1b9a")]
 [assembly: System.Reflection.AssemblyProductAttribute("domain")]
 [assembly: System.Reflection.AssemblyTitleAttribute("domain")]
 [assembly: System.Reflection.AssemblyVersionAttribute("1.0.0.0")]
 
-// Generated by the MSBuild WriteCodeFragment class.
+// Создано классом WriteCodeFragment MSBuild.
 
diff --git a/domain/obj/Debug/net8.0/domain.AssemblyInfoInputs.cache b/domain/obj/Debug/net8.0/domain.AssemblyInfoInputs.cache
index 1a37bb1..7b645e9 100644
--- a/domain/obj/Debug/net8.0/domain.AssemblyInfoInputs.cache
+++ b/domain/obj/Debug/net8.0/domain.AssemblyInfoInputs.cache
@@ -1 +1 @@
-9c029f0b724d07a712a5d941d1aa11410bfa94baebf4624d9063852c950ebe3f
+15dde5298e0a2aca57d1a2b1eb4e9e31f4cb84ae24a21e988fca6c201a5add95
diff --git a/domain/obj/Debug/net8.0/domain.csproj.AssemblyReference.cache b/domain/obj/Debug/net8.0/domain.csproj.AssemblyReference.cache
index 3152d7d..2a93ee0 100644
Binary files a/domain/obj/Debug/net8.0/domain.csproj.AssemblyReference.cache and b/domain/obj/Debug/net8.0/domain.csproj.AssemblyReference.cache differ
diff --git a/domain/obj/Debug/net8.0/domain.dll b/domain/obj/Debug/net8.0/domain.dll
index 01b9861..17432bf 100644
Binary files a/domain/obj/Debug/net8.0/domain.dll and b/domain/obj/Debug/net8.0/domain.dll differ
diff --git a/domain/obj/Debug/net8.0/domain.pdb b/domain/obj/Debug/net8.0/domain.pdb
index 222daa3..865bf35 100644
Binary files a/domain/obj/Debug/net8.0/domain.pdb and b/domain/obj/Debug/net8.0/domain.pdb differ
diff --git a/domain/obj/Debug/net8.0/ref/domain.dll b/domain/obj/Debug/net8.0/ref/domain.dll
index ca4ed68..091caed 100644
Binary files a/domain/obj/Debug/net8.0/ref/domain.dll and b/domain/obj/Debug/net8.0/ref/domain.dll differ
diff --git a/domain/obj/Debug/net8.0/refint/domain.dll b/domain/obj/Debug/net8.0/refint/domain.dll
index ca4ed68..091caed 100644
Binary files a/domain/obj/Debug/net8.0/refint/domain.dll and b/domain/obj/Debug/net8.0/refint/domain.dll differ
diff --git a/ui/Apiska.cs b/ui/Apiska.cs
index e69de29..b6d66c9 100644
--- a/ui/Apiska.cs
+++ b/ui/Apiska.cs
@@ -0,0 +1,50 @@
+using Data.RemoteData.DAO;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+
+namespace Zurnal.RemaDateBase.DateDao
+{
+    public class GroupInfo
+    {
+        public int TotalStudents { get; set; }
+        public int TotalLessons { get; set; }
+        public double AttendancePercentage { get; set; }
+        public List<StudentAttendance> StudentAttendances { get; set; }
+    }
+
+    public class StudentAttendance
+    {
+        public string FIO { get; set; }
+        public int AttendedLessons { get; set; }
+        public int MissedLessons { get; set; }
+        public double AttendanceRate { get; set; }
+    }
+
+    public class GroupService
+    {
+        public GroupInfo GetGroupInfo(GroupDao group)
+        {
+            var students = group.Users.ToList();
+            var totalLessons = students.SelectMany(u => u.Group.Users.SelectMany(p => p.Presences)).Count();
+            var totalAttendance = students.Sum(u => u.Presences.Count(p => p.IsAttendensy));
+            var attendancePercentage = totalLessons > 0 ? (double)totalAttendance / totalLessons * 100 : 0;
+
+            var studentAttendances = students.Select(u => new StudentAttendance
+            {
+                FIO = u.FIO,
+                AttendedLessons = u.Presences.Count(p => p.IsAttendensy),
+                MissedLessons = u.Presences.Count(p => !p.IsAttendensy),
+                AttendanceRate = totalLessons > 0 ? (double)u.Presences.Count(p => p.IsAttendensy) / totalLessons * 100 : 0
+            }).ToList();
+
+            return new GroupInfo
+            {
+                TotalStudents = students.Count,
+                TotalLessons = totalLessons,
+                AttendancePercentage = attendancePercentage,
+                StudentAttendances = studentAttendances
+            };
+        }
+    }
+}
\ No newline at end of file
diff --git a/ui/bin/Debug/net8.0/data.dll b/ui/bin/Debug/net8.0/data.dll
index b5e10fc..16c7b96 100644
Binary files a/ui/bin/Debug/net8.0/data.dll and b/ui/bin/Debug/net8.0/data.dll differ
diff --git a/ui/bin/Debug/net8.0/data.pdb b/ui/bin/Debug/net8.0/data.pdb
index f307fd9..aecd83a 100644
Binary files a/ui/bin/Debug/net8.0/data.pdb and b/ui/bin/Debug/net8.0/data.pdb differ
diff --git a/ui/bin/Debug/net8.0/domain.dll b/ui/bin/Debug/net8.0/domain.dll
index 01b9861..17432bf 100644
Binary files a/ui/bin/Debug/net8.0/domain.dll and b/ui/bin/Debug/net8.0/domain.dll differ
diff --git a/ui/bin/Debug/net8.0/domain.pdb b/ui/bin/Debug/net8.0/domain.pdb
index 222daa3..865bf35 100644
Binary files a/ui/bin/Debug/net8.0/domain.pdb and b/ui/bin/Debug/net8.0/domain.pdb differ
diff --git a/ui/bin/Debug/net8.0/ui.dll b/ui/bin/Debug/net8.0/ui.dll
index 072ca01..9d45250 100644
Binary files a/ui/bin/Debug/net8.0/ui.dll and b/ui/bin/Debug/net8.0/ui.dll differ
diff --git a/ui/bin/Debug/net8.0/ui.exe b/ui/bin/Debug/net8.0/ui.exe
index 94bedc3..3bca033 100644
Binary files a/ui/bin/Debug/net8.0/ui.exe and b/ui/bin/Debug/net8.0/ui.exe differ
diff --git a/ui/bin/Debug/net8.0/ui.pdb b/ui/bin/Debug/net8.0/ui.pdb
index a951c9d..03050e3 100644
Binary files a/ui/bin/Debug/net8.0/ui.pdb and b/ui/bin/Debug/net8.0/ui.pdb differ
diff --git a/ui/obj/Debug/net8.0/apphost.exe b/ui/obj/Debug/net8.0/apphost.exe
index 94bedc3..3bca033 100644
Binary files a/ui/obj/Debug/net8.0/apphost.exe and b/ui/obj/Debug/net8.0/apphost.exe differ
diff --git a/ui/obj/Debug/net8.0/ref/ui.dll b/ui/obj/Debug/net8.0/ref/ui.dll
index 9334961..8a6b2c3 100644
Binary files a/ui/obj/Debug/net8.0/ref/ui.dll and b/ui/obj/Debug/net8.0/ref/ui.dll differ
diff --git a/ui/obj/Debug/net8.0/refint/ui.dll b/ui/obj/Debug/net8.0/refint/ui.dll
index 9334961..8a6b2c3 100644
Binary files a/ui/obj/Debug/net8.0/refint/ui.dll and b/ui/obj/Debug/net8.0/refint/ui.dll differ
diff --git a/ui/obj/Debug/net8.0/ui.AssemblyInfo.cs b/ui/obj/Debug/net8.0/ui.AssemblyInfo.cs
index 27b2969..3369c79 100644
--- a/ui/obj/Debug/net8.0/ui.AssemblyInfo.cs
+++ b/ui/obj/Debug/net8.0/ui.AssemblyInfo.cs
@@ -13,7 +13,7 @@ using System.Reflection;
 [assembly: System.Reflection.AssemblyCompanyAttribute("ui")]
 [assembly: System.Reflection.AssemblyConfigurationAttribute("Debug")]
 [assembly: System.Reflection.AssemblyFileVersionAttribute("1.0.0.0")]
-[assembly: System.Reflection.AssemblyInformationalVersionAttribute("1.0.0+5124d95d3daae0a4fb8c67dff74fc5e25268f700")]
+[assembly: System.Reflection.AssemblyInformationalVersionAttribute("1.0.0+d14f30b58346596546b30dc44d61ffae0ddb1b9a")]
 [assembly: System.Reflection.AssemblyProductAttribute("ui")]
 [assembly: System.Reflection.AssemblyTitleAttribute("ui")]
 [assembly: System.Reflection.AssemblyVersionAttribute("1.0.0.0")]
diff --git a/ui/obj/Debug/net8.0/ui.AssemblyInfoInputs.cache b/ui/obj/Debug/net8.0/ui.AssemblyInfoInputs.cache
index 7fdb980..2af9172 100644
--- a/ui/obj/Debug/net8.0/ui.AssemblyInfoInputs.cache
+++ b/ui/obj/Debug/net8.0/ui.AssemblyInfoInputs.cache
@@ -1 +1 @@
-949b5e9c101aeb5918553be7acfbb6a7908a62a118405d2f2df4707237ffb8cf
+4e7c2fe91495819803332ae21fc74a7aec753055f4a797d99eb398f35ee67a01
diff --git a/ui/obj/Debug/net8.0/ui.csproj.AssemblyReference.cache b/ui/obj/Debug/net8.0/ui.csproj.AssemblyReference.cache
index fa12482..e224c8a 100644
Binary files a/ui/obj/Debug/net8.0/ui.csproj.AssemblyReference.cache and b/ui/obj/Debug/net8.0/ui.csproj.AssemblyReference.cache differ
diff --git a/ui/obj/Debug/net8.0/ui.dll b/ui/obj/Debug/net8.0/ui.dll
index 072ca01..9d45250 100644
Binary files a/ui/obj/Debug/net8.0/ui.dll and b/ui/obj/Debug/net8.0/ui.dll differ
diff --git a/ui/obj/Debug/net8.0/ui.pdb b/ui/obj/Debug/net8.0/ui.pdb
index a951c9d..03050e3 100644
Binary files a/ui/obj/Debug/net8.0/ui.pdb and b/ui/obj/Debug/net8.0/ui.pdb differ