diff --git a/Schnittstelle b/Schnittstelle
index 2e6217a..ce1ca01 160000
--- a/Schnittstelle
+++ b/Schnittstelle
@@ -1 +1 @@
-Subproject commit 2e6217aea4ed882b3e3403267c33339d06771966
+Subproject commit ce1ca0128759dde4847b820887537728b9858348
diff --git a/dcnsanplanung.DAL/Helper/WriteToDatabase.cs b/dcnsanplanung.DAL/Helper/WriteToDatabase.cs
new file mode 100644
index 0000000..0b5a75f
--- /dev/null
+++ b/dcnsanplanung.DAL/Helper/WriteToDatabase.cs
@@ -0,0 +1,39 @@
+using dcnsanplanung.DAL.Services.PostgresqlData;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace dcnsanplanung.DAL.Helper
+{
+    public class WriteToDatabase
+    {
+        List<shared.Model.Haltung> haltungen = new List<shared.Model.Haltung>();
+        List<shared.Model.LeistungsverzeichnisPosition> LVPositionen = new List<shared.Model.LeistungsverzeichnisPosition>();
+        public WriteToDatabase(string XMLFile, string connectionstring = "Host = localhost; Database = sanplaner; Username = dcnsanplaner; Password = sanplaner")
+        {
+            haltungen = new shared.Helper.ImportToSoftware(XMLFile).haltungen;
+            LVPositionen = new shared.Helper.ImportLVToSoftware(@"C:\Users\damia\source\repos\dcnsanplanung\BE-BS-AWN DW_0001_OOWV_Stamm_LV_Kanalsanierung_xml33.X81").LVPositionen;
+
+            
+        }
+
+        public async Task<bool> WriteInHaltung()
+        {
+            string connectionstring = "Host = localhost; Database = sanplaner; Username = dcnsanplaner; Password = sanplaner";
+            HaltungDataService haltungDataService = new HaltungDataService(connectionstring);
+            await haltungDataService.InsertHaltungBulk(haltungen);
+            return true;
+        }
+
+        public async Task<bool> WriteInLV()
+        {
+            string connectionstring = "Host = localhost; Database = sanplaner; Username = dcnsanplaner; Password = sanplaner";
+            LVDataService lVDataService = new LVDataService(connectionstring);
+            await lVDataService.InsertLeistungsverzeichnisPositionBulk(LVPositionen);
+            return true;
+        }
+        
+    }
+}
diff --git a/dcnsanplanung.DAL/Services/PostgresqlData/HaltungDataService.cs b/dcnsanplanung.DAL/Services/PostgresqlData/HaltungDataService.cs
new file mode 100644
index 0000000..48362b2
--- /dev/null
+++ b/dcnsanplanung.DAL/Services/PostgresqlData/HaltungDataService.cs
@@ -0,0 +1,87 @@
+using dcnsanplanung.shared.Model;
+using Npgsql;
+using Schnittstelle.Import.XML.v2013.Model;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace dcnsanplanung.DAL.Services.PostgresqlData
+{
+    public class HaltungDataService : PostgresqlDataService
+    {
+        SchadenDataService schadenDataService;
+        public HaltungDataService(string connectionstring) : base(connectionstring, "haltung")
+        {
+            schadenDataService = new SchadenDataService(connectionstring);
+        }
+
+        public async Task<Haltung> Create(Haltung entity)
+        {
+            string command = "INSERT INTO " + tableName + " (guid, ref_projekt_guid, objektbezeichnung, bewertungklasse) VALUES " +
+                "(@1,@2,@3,@4) RETURNING id";
+            using (var cmd = new NpgsqlCommand(command, conn))
+            {
+                cmd.Parameters.AddWithValue("1", entity.Guid.ToString());
+                cmd.Parameters.AddWithValue("2", entity.Ref_Projekt_Guid.ToString());
+                cmd.Parameters.AddWithValue("3", entity.Objektbezeichnung);
+                cmd.Parameters.AddWithValue("4", NpgsqlTypes.NpgsqlDbType.Oid, entity.Bewertungklasse);
+
+                using var reader = await cmd.ExecuteReaderAsync();
+                reader.Read();
+                entity.ID = reader.GetInt32(0);
+            }
+            await schadenDataService.InsertSchadenBulk(entity.Kodierungen);
+            return entity;
+        }
+
+        public async Task<IEnumerable<Haltung>> GetAllByProjekt(int projektID)
+        {
+            List<Haltung> result = new List<Haltung>();
+            //ISchachtDataService schachtDataService = new SchachtDataService(connString);
+            //IEnumerable<Schacht> schaechte = await schachtDataService.GetAllByProjekt(projektID);
+
+            string command = "SELECT * FROM " + tableName + ";";//" WHERE ref_projekt_id = @1";
+            using (var cmd = new NpgsqlCommand(command, conn))
+            {
+                //cmd.Parameters.AddWithValue("1", projektID);
+                using (var reader = await cmd.ExecuteReaderAsync())
+                {
+                    while (reader.Read())
+                    {
+                        Haltung adding = parseHaltung(reader);
+
+                        result.Add(adding);
+                    }
+                }
+            }
+            return result;
+        }
+
+        private Haltung parseHaltung(NpgsqlDataReader reader)
+        {
+            Haltung result = new Haltung()
+            {
+                ID = reader.GetInt32(0),
+                Guid = Guid.Parse(reader.GetString(1)),
+                Ref_Projekt_Guid = Guid.Parse(reader.GetString(2)),
+                Objektbezeichnung = reader.GetString(3),
+
+                Bewertungklasse = Convert.ToUInt32(reader.GetValue(4)),
+            };
+
+            return result;
+        }
+
+
+        public async Task<bool> InsertHaltungBulk(List<Haltung> haltungen)
+        {
+            foreach (var item in haltungen)
+            {
+                await Create(item);
+            }
+            return true;
+        }
+    }
+}
diff --git a/dcnsanplanung.DAL/Services/PostgresqlData/LVDataService.cs b/dcnsanplanung.DAL/Services/PostgresqlData/LVDataService.cs
new file mode 100644
index 0000000..3001699
--- /dev/null
+++ b/dcnsanplanung.DAL/Services/PostgresqlData/LVDataService.cs
@@ -0,0 +1,75 @@
+using dcnsanplanung.shared.Model;
+using Npgsql;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace dcnsanplanung.DAL.Services.PostgresqlData
+{
+    public class LVDataService : PostgresqlDataService
+    {
+        public LVDataService(string connectionstring) : base(connectionstring, "leistungsverzeichnisposition")
+        {
+        }
+
+        public async Task<LeistungsverzeichnisPosition> Create(LeistungsverzeichnisPosition entity)
+        {
+            string command = "INSERT INTO " + tableName + " (guid, positionsnummer, titel, einheit) VALUES " +
+                "(@1,@2,@3,@4) RETURNING id";
+            using (var cmd = new NpgsqlCommand(command, conn))
+            {
+                cmd.Parameters.AddWithValue("1", entity.Guid.ToString());
+                cmd.Parameters.AddWithValue("2", entity.Positionsnummer);
+                cmd.Parameters.AddWithValue("3", entity.Titel);
+                cmd.Parameters.AddWithValue("4", entity.Einheit);
+                using var reader = await cmd.ExecuteReaderAsync();
+                reader.Read();
+                entity.ID = reader.GetInt32(0);
+            }
+            return entity;
+        }
+
+        public async Task<IEnumerable<LeistungsverzeichnisPosition>> GetAll()
+        {
+            List<LeistungsverzeichnisPosition> result = new List<LeistungsverzeichnisPosition>();
+            string command = "SELECT * FROM " + tableName + ";";
+            using (var cmd = new NpgsqlCommand(command, conn))
+            {
+                using (var reader = await cmd.ExecuteReaderAsync())
+                {
+                    while (reader.Read())
+                    {
+                        LeistungsverzeichnisPosition adding = parsePosition(reader);
+
+                        result.Add(adding);
+                    }
+                }
+            }
+            return result;
+        }
+
+        private LeistungsverzeichnisPosition parsePosition(NpgsqlDataReader reader)
+        {
+            LeistungsverzeichnisPosition result = new LeistungsverzeichnisPosition()
+            {
+                ID = reader.GetInt32(0),
+                Guid = Guid.Parse(reader.GetString(1)),
+                Positionsnummer = reader.GetString(2),
+                Titel = reader.GetString(3),
+                Einheit = reader.GetString(4)
+            };
+            return result;
+        }
+
+        public async Task<bool> InsertLeistungsverzeichnisPositionBulk(List<LeistungsverzeichnisPosition> position)
+        {
+            foreach (var item in position)
+            {
+                await Create(item);
+            }
+            return true;
+        }
+    }
+}
diff --git a/dcnsanplanung.DAL/Services/PostgresqlData/PostgresqlDataService.cs b/dcnsanplanung.DAL/Services/PostgresqlData/PostgresqlDataService.cs
new file mode 100644
index 0000000..f9915fa
--- /dev/null
+++ b/dcnsanplanung.DAL/Services/PostgresqlData/PostgresqlDataService.cs
@@ -0,0 +1,47 @@
+using Npgsql;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace dcnsanplanung.DAL.Services.PostgresqlData
+{
+    public class PostgresqlDataService : IDisposable
+    {
+        protected readonly string connString; // = "Host = localhost; Database = sanplaner; Username = dcnsanplaner; Password = sanplaner";
+        NpgsqlDataSource dataSource;
+        protected NpgsqlConnection? conn = null;
+        protected string tableName = "";
+
+        public PostgresqlDataService(string connectionstring, string tableName)
+        {
+            this.connString = connectionstring;
+            var dataSourceBuilder = new NpgsqlDataSourceBuilder(connString);
+            dataSource = dataSourceBuilder.Build();
+
+            conn = dataSource.OpenConnection();
+            this.tableName = string.Format("public.{0}", tableName);
+
+        }
+        public virtual async Task<bool> Delete(int id)
+        {
+            string command = $"DELETE " + tableName + " WHERE \"Id\" = @1";
+            await using (var cmd = new NpgsqlCommand(command, conn))
+            {
+                cmd.Parameters.AddWithValue("1", id);
+                int res = await cmd.ExecuteNonQueryAsync();
+            }
+            return true;
+        }
+        public void Dispose()
+        {
+            if (conn != null && conn.State == System.Data.ConnectionState.Open)
+            {
+                conn.Close();
+                conn.Dispose();
+            }
+        }
+
+    }
+}
diff --git a/dcnsanplanung.DAL/Services/PostgresqlData/SchadenDataService.cs b/dcnsanplanung.DAL/Services/PostgresqlData/SchadenDataService.cs
new file mode 100644
index 0000000..ee06c3e
--- /dev/null
+++ b/dcnsanplanung.DAL/Services/PostgresqlData/SchadenDataService.cs
@@ -0,0 +1,44 @@
+using dcnsanplanung.shared.Model;
+using Npgsql;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace dcnsanplanung.DAL.Services.PostgresqlData
+{
+    public class SchadenDataService : PostgresqlDataService
+    {
+        public SchadenDataService(string connectionstring) : base(connectionstring, "schaden")
+        {
+        }
+
+        public async Task<Schaden> Create(Schaden entity)
+        {
+            string command = "INSERT INTO " + tableName + " (guid, ref_haltung_guid, entfernung, kodierung, schadensklasse) VALUES " +
+                "(@1,@2,@3,@4,@5) RETURNING id";
+            using(var cmd = new NpgsqlCommand(command,conn))
+            {
+                cmd.Parameters.AddWithValue("1", entity.Guid.ToString());
+                cmd.Parameters.AddWithValue("2", entity.Ref_Haltung_Guid.ToString());
+                cmd.Parameters.AddWithValue("3", entity.Entfernung);
+                cmd.Parameters.AddWithValue("4", entity.Kodierung);
+                cmd.Parameters.AddWithValue("5", NpgsqlTypes.NpgsqlDbType.Oid, entity.Schadensklasse);
+                using var reader = await cmd.ExecuteReaderAsync();
+                reader.Read();
+                entity.ID = reader.GetInt32(0);
+            }
+            return entity;
+        }
+
+        public async Task<bool> InsertSchadenBulk(List<Schaden> schaden)
+        {
+            foreach(var item in schaden)
+            {
+                await Create(item);
+            }
+            return true;
+        }
+    }
+}
diff --git a/dcnsanplanung.DAL/dcnsanplanung.DAL.csproj b/dcnsanplanung.DAL/dcnsanplanung.DAL.csproj
new file mode 100644
index 0000000..0633d1e
--- /dev/null
+++ b/dcnsanplanung.DAL/dcnsanplanung.DAL.csproj
@@ -0,0 +1,18 @@
+<Project Sdk="Microsoft.NET.Sdk">
+
+  <PropertyGroup>
+    <TargetFramework>net7.0</TargetFramework>
+    <ImplicitUsings>enable</ImplicitUsings>
+    <Nullable>enable</Nullable>
+  </PropertyGroup>
+
+  <ItemGroup>
+    <PackageReference Include="Npgsql" Version="7.0.4" />
+  </ItemGroup>
+
+  <ItemGroup>
+    <ProjectReference Include="..\dcnsanplanung.shared\dcnsanplanung.shared.csproj" />
+    <ProjectReference Include="..\Schnittstelle\Schnittstelle\Schnittstelle.csproj" />
+  </ItemGroup>
+
+</Project>
diff --git a/dcnsanplanung.DALTests/Helper/WriteToDatabaseTests.cs b/dcnsanplanung.DALTests/Helper/WriteToDatabaseTests.cs
new file mode 100644
index 0000000..2adb182
--- /dev/null
+++ b/dcnsanplanung.DALTests/Helper/WriteToDatabaseTests.cs
@@ -0,0 +1,20 @@
+using Microsoft.VisualStudio.TestTools.UnitTesting;
+using dcnsanplanung.DAL.Helper;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace dcnsanplanung.DAL.Helper.Tests
+{
+    [TestClass()]
+    public class WriteToDatabaseTests
+    {
+        [TestMethod()]
+        public void WriteToDatabaseTest()
+        {
+            WriteToDatabase writeToDatabase = new WriteToDatabase(@"C:\Users\damia\source\repos\dcnsanplanung\test_code.xml");
+        }
+    }
+}
\ No newline at end of file
diff --git a/dcnsanplanung.DALTests/dcnsanplanung.DALTests.csproj b/dcnsanplanung.DALTests/dcnsanplanung.DALTests.csproj
new file mode 100644
index 0000000..0b489a6
--- /dev/null
+++ b/dcnsanplanung.DALTests/dcnsanplanung.DALTests.csproj
@@ -0,0 +1,23 @@
+<Project Sdk="Microsoft.NET.Sdk">
+
+  <PropertyGroup>
+    <TargetFramework>net7.0</TargetFramework>
+    <ImplicitUsings>enable</ImplicitUsings>
+    <Nullable>enable</Nullable>
+
+    <IsPackable>false</IsPackable>
+    <IsTestProject>true</IsTestProject>
+  </PropertyGroup>
+
+  <ItemGroup>
+    <PackageReference Include="Microsoft.NET.Test.Sdk" Version="17.5.0" />
+    <PackageReference Include="MSTest.TestAdapter" Version="2.2.10" />
+    <PackageReference Include="MSTest.TestFramework" Version="2.2.10" />
+    <PackageReference Include="coverlet.collector" Version="3.2.0" />
+  </ItemGroup>
+
+  <ItemGroup>
+    <ProjectReference Include="..\dcnsanplanung.DAL\dcnsanplanung.DAL.csproj" />
+  </ItemGroup>
+
+</Project>
diff --git a/dcnsanplanung.shared/Helper/ImportLVToSoftware.cs b/dcnsanplanung.shared/Helper/ImportLVToSoftware.cs
new file mode 100644
index 0000000..ff68a44
--- /dev/null
+++ b/dcnsanplanung.shared/Helper/ImportLVToSoftware.cs
@@ -0,0 +1,32 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace dcnsanplanung.shared.Helper
+{
+    public class ImportLVToSoftware
+    {
+        public List<Model.LeistungsverzeichnisPosition> LVPositionen = new List<Model.LeistungsverzeichnisPosition>();
+
+        public ImportLVToSoftware(string XMLFile)
+        {
+            ReadSchnittstelle(XMLFile);
+        }
+
+        private void ReadSchnittstelle(string xMLFile)
+        {
+            foreach(Schnittstelle.Import.LV.Model.LVPosition src_lv in new Schnittstelle.Import.LV.X81(xMLFile).ExportedLVPosition)
+            {
+                LVPositionen.Add(new Model.LeistungsverzeichnisPosition()
+                {
+                    Guid = Guid.NewGuid(),
+                    Einheit = src_lv.Einheit,
+                    Titel = src_lv.Title,
+                    Positionsnummer = src_lv.Positionsnummer,
+                });
+            }
+        }
+    }
+}
diff --git a/dcnsanplanung.shared/Helper/ImportToSoftware.cs b/dcnsanplanung.shared/Helper/ImportToSoftware.cs
new file mode 100644
index 0000000..97f3a16
--- /dev/null
+++ b/dcnsanplanung.shared/Helper/ImportToSoftware.cs
@@ -0,0 +1,46 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace dcnsanplanung.shared.Helper
+{
+    public class ImportToSoftware
+    {
+        public List<Model.Haltung> haltungen = new List<Model.Haltung>();
+        public ImportToSoftware(string XMLFile)
+        {
+            ReadSchnittstelle(XMLFile);
+        }
+
+        private void ReadSchnittstelle(string XMLFile)
+        {
+            List<Schnittstelle.Import.XML.v2013.Model.KanalObjekt> source_KanalObjekt = new Schnittstelle.Import.XML.v2013.XML2013(XMLFile).KanalObjekte.FindAll(x => x.Inspektionsdaten.Anlagentyp == Schnittstelle.Import.XML.v2013.Model.EAnlagetyp.Haltung);
+
+            //List<Model.Haltung> haltungen = new List<Model.Haltung>();
+            foreach (Schnittstelle.Import.XML.v2013.Model.KanalObjekt src in source_KanalObjekt)
+            {
+                Model.Haltung haltung = new Model.Haltung();
+                haltung.Guid = Guid.NewGuid();
+                haltung.Objektbezeichnung = src.Stammdaten.Objektbezeichnung;
+                haltung.Bewertungklasse = src.Inspektionsdaten.OptischeInspektion.Rohrleitung.Bewertung == null ? 6 : src.Inspektionsdaten.OptischeInspektion.Rohrleitung.Bewertung.KlasseAutomatisch;
+
+                List<Model.Schaden> kodierungen = new List<Model.Schaden>();
+                foreach (Schnittstelle.Import.XML.v2013.Model.RZustand src_kodierung in src.Inspektionsdaten.OptischeInspektion.Rohrleitung.Zustaende)
+                {
+                    Model.Schaden kodierung = new Model.Schaden();
+                    kodierung.Guid = Guid.NewGuid();
+                    kodierung.Ref_Haltung_Guid = haltung.Guid;
+                    kodierung.Entfernung = src_kodierung.Station;
+                    kodierung.Kodierung = string.Format("{0}#{1}#{2}#{3}", src_kodierung.Inspektionskode ,src_kodierung.Charakterisierung1 , src_kodierung.Charakterisierung2 , src_kodierung.Quantifizierung1);
+                    kodierung.Schadensklasse = src_kodierung.Klassifizierung == null ? 6 : src_kodierung.Klassifizierung.MaxSKeAuto;
+                    kodierungen.Add(kodierung);
+                }
+                haltung.Kodierungen = kodierungen;
+
+                haltungen.Add(haltung);
+            }
+        }
+    }
+}
diff --git a/dcnsanplanung.shared/Model/DBObjekt.cs b/dcnsanplanung.shared/Model/DBObjekt.cs
new file mode 100644
index 0000000..f44a86f
--- /dev/null
+++ b/dcnsanplanung.shared/Model/DBObjekt.cs
@@ -0,0 +1,14 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace dcnsanplanung.shared.Model
+{
+    public class DBObjekt
+    {
+        public int ID { get; set; }
+        public Guid Guid { get; set; }
+    }
+}
diff --git a/dcnsanplanung.shared/Model/Haltung.cs b/dcnsanplanung.shared/Model/Haltung.cs
new file mode 100644
index 0000000..40de692
--- /dev/null
+++ b/dcnsanplanung.shared/Model/Haltung.cs
@@ -0,0 +1,24 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace dcnsanplanung.shared.Model
+{
+    public class Haltung : DBObjekt
+    {
+        public Guid Ref_Projekt_Guid;
+        public string Objektbezeichnung { get; set; } = "";
+        public uint Bewertungklasse { get; set; }
+        public List<Schaden> Kodierungen = new List<Schaden>();
+    }
+
+    public class Schaden : DBObjekt
+    {
+        public Guid Ref_Haltung_Guid;
+        public decimal Entfernung;
+        public string Kodierung = "";
+        public uint Schadensklasse;
+    }
+}
diff --git a/dcnsanplanung.shared/Model/LeistungsverzeichnisPosition.cs b/dcnsanplanung.shared/Model/LeistungsverzeichnisPosition.cs
new file mode 100644
index 0000000..133e95e
--- /dev/null
+++ b/dcnsanplanung.shared/Model/LeistungsverzeichnisPosition.cs
@@ -0,0 +1,15 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace dcnsanplanung.shared.Model
+{
+    public class LeistungsverzeichnisPosition : DBObjekt
+    {
+        public string Positionsnummer { get; set; } = "";
+        public string Titel { get; set; } = "";
+        public string Einheit { get; set; } = "";
+    }
+}
diff --git a/dcnsanplanung.shared/Model/Projekt.cs b/dcnsanplanung.shared/Model/Projekt.cs
new file mode 100644
index 0000000..a022b5d
--- /dev/null
+++ b/dcnsanplanung.shared/Model/Projekt.cs
@@ -0,0 +1,13 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace dcnsanplanung.shared.Model
+{
+    public class Projekt : DBObjekt
+    {
+        public List<Haltung> Haltungen = new List<Haltung>();
+    }
+}
diff --git a/dcnsanplanung.shared/dcnsanplanung.shared.csproj b/dcnsanplanung.shared/dcnsanplanung.shared.csproj
index cfadb03..dbe8733 100644
--- a/dcnsanplanung.shared/dcnsanplanung.shared.csproj
+++ b/dcnsanplanung.shared/dcnsanplanung.shared.csproj
@@ -6,4 +6,8 @@
     <Nullable>enable</Nullable>
   </PropertyGroup>
 
+  <ItemGroup>
+    <ProjectReference Include="..\Schnittstelle\Schnittstelle\Schnittstelle.csproj" />
+  </ItemGroup>
+
 </Project>
diff --git a/dcnsanplanung.sharedTests/Helper/ImportToSoftwareTests.cs b/dcnsanplanung.sharedTests/Helper/ImportToSoftwareTests.cs
new file mode 100644
index 0000000..c83e15b
--- /dev/null
+++ b/dcnsanplanung.sharedTests/Helper/ImportToSoftwareTests.cs
@@ -0,0 +1,20 @@
+using Microsoft.VisualStudio.TestTools.UnitTesting;
+using dcnsanplanung.shared.Helper;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace dcnsanplanung.shared.Helper.Tests
+{
+    [TestClass()]
+    public class ImportToSoftwareTests
+    {
+        [TestMethod()]
+        public void ImportToSoftwareTest()
+        {
+            ImportToSoftware importToSoftware = new ImportToSoftware(@"C:\Users\damia\source\repos\dcnsanplanung\test_code.xml");
+        }
+    }
+}
\ No newline at end of file
diff --git a/dcnsanplanung.sharedTests/dcnsanplanung.sharedTests.csproj b/dcnsanplanung.sharedTests/dcnsanplanung.sharedTests.csproj
new file mode 100644
index 0000000..c82f56c
--- /dev/null
+++ b/dcnsanplanung.sharedTests/dcnsanplanung.sharedTests.csproj
@@ -0,0 +1,23 @@
+<Project Sdk="Microsoft.NET.Sdk">
+
+  <PropertyGroup>
+    <TargetFramework>net7.0</TargetFramework>
+    <ImplicitUsings>enable</ImplicitUsings>
+    <Nullable>enable</Nullable>
+
+    <IsPackable>false</IsPackable>
+    <IsTestProject>true</IsTestProject>
+  </PropertyGroup>
+
+  <ItemGroup>
+    <PackageReference Include="Microsoft.NET.Test.Sdk" Version="17.5.0" />
+    <PackageReference Include="MSTest.TestAdapter" Version="2.2.10" />
+    <PackageReference Include="MSTest.TestFramework" Version="2.2.10" />
+    <PackageReference Include="coverlet.collector" Version="3.2.0" />
+  </ItemGroup>
+
+  <ItemGroup>
+    <ProjectReference Include="..\dcnsanplanung.shared\dcnsanplanung.shared.csproj" />
+  </ItemGroup>
+
+</Project>
diff --git a/dcnsanplanung.sln b/dcnsanplanung.sln
index 2fc6072..b19e575 100644
--- a/dcnsanplanung.sln
+++ b/dcnsanplanung.sln
@@ -3,7 +3,17 @@ Microsoft Visual Studio Solution File, Format Version 12.00
 # Visual Studio Version 17
 VisualStudioVersion = 17.5.33530.505
 MinimumVisualStudioVersion = 10.0.40219.1
-Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "dcnsanplanung.wpf", "dcnsanplanung.wpf\dcnsanplanung.wpf.csproj", "{B0DDBF77-B592-4485-8705-E0B3AABBF171}"
+Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "dcnsanplanung.wpf", "dcnsanplanung.wpf\dcnsanplanung.wpf.csproj", "{B0DDBF77-B592-4485-8705-E0B3AABBF171}"
+EndProject
+Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "dcnsanplanung.shared", "dcnsanplanung.shared\dcnsanplanung.shared.csproj", "{AC43208D-6A5B-4A62-B8DE-DAE110C6CAFC}"
+EndProject
+Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "Schnittstelle", "Schnittstelle\Schnittstelle\Schnittstelle.csproj", "{3CD21512-6B4B-4590-A00E-36E40B791940}"
+EndProject
+Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "dcnsanplanung.DAL", "dcnsanplanung.DAL\dcnsanplanung.DAL.csproj", "{FA2F4994-301B-4C11-8F44-585D4B726B97}"
+EndProject
+Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "dcnsanplanung.sharedTests", "dcnsanplanung.sharedTests\dcnsanplanung.sharedTests.csproj", "{BD28F6AD-DA89-4BC7-A82D-7E28BB00E0EB}"
+EndProject
+Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "dcnsanplanung.DALTests", "dcnsanplanung.DALTests\dcnsanplanung.DALTests.csproj", "{91A48C89-5E1F-4C70-B995-A2AC9459E6C1}"
 EndProject
 Global
 	GlobalSection(SolutionConfigurationPlatforms) = preSolution
@@ -15,6 +25,26 @@ Global
 		{B0DDBF77-B592-4485-8705-E0B3AABBF171}.Debug|Any CPU.Build.0 = Debug|Any CPU
 		{B0DDBF77-B592-4485-8705-E0B3AABBF171}.Release|Any CPU.ActiveCfg = Release|Any CPU
 		{B0DDBF77-B592-4485-8705-E0B3AABBF171}.Release|Any CPU.Build.0 = Release|Any CPU
+		{AC43208D-6A5B-4A62-B8DE-DAE110C6CAFC}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{AC43208D-6A5B-4A62-B8DE-DAE110C6CAFC}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{AC43208D-6A5B-4A62-B8DE-DAE110C6CAFC}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{AC43208D-6A5B-4A62-B8DE-DAE110C6CAFC}.Release|Any CPU.Build.0 = Release|Any CPU
+		{3CD21512-6B4B-4590-A00E-36E40B791940}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{3CD21512-6B4B-4590-A00E-36E40B791940}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{3CD21512-6B4B-4590-A00E-36E40B791940}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{3CD21512-6B4B-4590-A00E-36E40B791940}.Release|Any CPU.Build.0 = Release|Any CPU
+		{FA2F4994-301B-4C11-8F44-585D4B726B97}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{FA2F4994-301B-4C11-8F44-585D4B726B97}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{FA2F4994-301B-4C11-8F44-585D4B726B97}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{FA2F4994-301B-4C11-8F44-585D4B726B97}.Release|Any CPU.Build.0 = Release|Any CPU
+		{BD28F6AD-DA89-4BC7-A82D-7E28BB00E0EB}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{BD28F6AD-DA89-4BC7-A82D-7E28BB00E0EB}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{BD28F6AD-DA89-4BC7-A82D-7E28BB00E0EB}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{BD28F6AD-DA89-4BC7-A82D-7E28BB00E0EB}.Release|Any CPU.Build.0 = Release|Any CPU
+		{91A48C89-5E1F-4C70-B995-A2AC9459E6C1}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{91A48C89-5E1F-4C70-B995-A2AC9459E6C1}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{91A48C89-5E1F-4C70-B995-A2AC9459E6C1}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{91A48C89-5E1F-4C70-B995-A2AC9459E6C1}.Release|Any CPU.Build.0 = Release|Any CPU
 	EndGlobalSection
 	GlobalSection(SolutionProperties) = preSolution
 		HideSolutionNode = FALSE
diff --git a/dcnsanplanung.wpf/App.xaml.cs b/dcnsanplanung.wpf/App.xaml.cs
index 5d3b534..eeccefe 100644
--- a/dcnsanplanung.wpf/App.xaml.cs
+++ b/dcnsanplanung.wpf/App.xaml.cs
@@ -13,5 +13,30 @@ namespace dcnsanplanung.wpf
     /// </summary>
     public partial class App : Application
     {
+        protected override void OnStartup(StartupEventArgs e)
+        {
+            Application.Current.DispatcherUnhandledException += Current_DispatcherUnhandledException;
+            AppDomain.CurrentDomain.UnhandledException += CurrentDomain_UnhandledException;
+
+            base.OnStartup(e);
+        }
+        private void CurrentDomain_UnhandledException(object sender, UnhandledExceptionEventArgs e)
+        {
+            try
+            {
+                Exception ex = (Exception)e.ExceptionObject;
+                string text = "An application error occured. Plrease contact the Administrator with the following information:\n\n";
+                MessageBox.Show(text + " " + ex.Message + "\n\n" + ex.StackTrace);
+            }
+            catch (Exception ex2)
+            {
+                MessageBox.Show("Fatal Non-UI error", ex2.Message, MessageBoxButton.OK, MessageBoxImage.Error);
+            }
+        }
+
+        private void Current_DispatcherUnhandledException(object sender, System.Windows.Threading.DispatcherUnhandledExceptionEventArgs e)
+        {
+            throw new NotImplementedException();
+        }
     }
 }
diff --git a/dcnsanplanung.wpf/MainWindow.xaml b/dcnsanplanung.wpf/MainWindow.xaml
index bab0383..faadacc 100644
--- a/dcnsanplanung.wpf/MainWindow.xaml
+++ b/dcnsanplanung.wpf/MainWindow.xaml
@@ -5,8 +5,23 @@
         xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
         xmlns:local="clr-namespace:dcnsanplanung.wpf"
         mc:Ignorable="d"
-        Title="MainWindow" Height="450" Width="800">
+        Title="MainWindow" Height="450" Width="800" Loaded="Window_Loaded">
     <Grid>
+        <StackPanel>
+            <ComboBox Name="Items" SelectionChanged="Items_SelectionChanged">
+                <ComboBox.ItemTemplate>
+                    <DataTemplate>
+                        <StackPanel Orientation="Horizontal">
+                            <TextBlock Text="{Binding Objektbezeichnung}" />
+                            <TextBlock Text=" | " />
+                            <TextBlock Text="{Binding Bewertungklasse}" />
+                        </StackPanel>
+                    </DataTemplate>
+                </ComboBox.ItemTemplate>
+            </ComboBox>
+            
+            <Button Name="LoadXML" Click="LoadXML_Click" Content="LoadXML" />
+        </StackPanel>
 
     </Grid>
 </Window>
diff --git a/dcnsanplanung.wpf/MainWindow.xaml.cs b/dcnsanplanung.wpf/MainWindow.xaml.cs
index 92328d2..ffe3422 100644
--- a/dcnsanplanung.wpf/MainWindow.xaml.cs
+++ b/dcnsanplanung.wpf/MainWindow.xaml.cs
@@ -1,4 +1,6 @@
-using System;
+using dcnsanplanung.shared.Model;
+using Schnittstelle.Import.XML.v2013.Model;
+using System;
 using System.Collections.Generic;
 using System.Linq;
 using System.Text;
@@ -24,5 +26,33 @@ namespace dcnsanplanung.wpf
         {
             InitializeComponent();
         }
+
+        private async void LoadXML_Click(object sender, RoutedEventArgs e)
+        {
+            DAL.Helper.WriteToDatabase writer = new DAL.Helper.WriteToDatabase(@"C:\Users\damia\source\repos\dcnsanplanung\test_code.xml");
+            //await writer.WriteInHaltung();
+            await writer.WriteInLV();
+            
+        }
+
+        private void Items_SelectionChanged(object sender, SelectionChangedEventArgs e)
+        {
+            Haltung? selectedItem = Items.SelectedItem as Haltung;
+            if (selectedItem == null) return;
+            W_ObjektView w_ObjektView = new W_ObjektView(selectedItem);
+            w_ObjektView.ShowDialog();
+            
+        }
+
+        private async void Window_Loaded(object sender, RoutedEventArgs e)
+        {
+            //
+            DAL.Services.PostgresqlData.HaltungDataService haltungsdataservice = new DAL.Services.PostgresqlData.HaltungDataService("Host = localhost; Database = sanplaner; Username = dcnsanplaner; Password = sanplaner");
+            var s = await haltungsdataservice.GetAllByProjekt(0);
+            foreach(var item in s)
+            {
+                Items.Items.Add(item);
+            }
+        }
     }
 }
diff --git a/dcnsanplanung.wpf/ViewModel/BaseViewModel.cs b/dcnsanplanung.wpf/ViewModel/BaseViewModel.cs
new file mode 100644
index 0000000..8860cf4
--- /dev/null
+++ b/dcnsanplanung.wpf/ViewModel/BaseViewModel.cs
@@ -0,0 +1,23 @@
+using System;
+using System.Collections.Generic;
+using System.ComponentModel;
+using System.Linq;
+using System.Runtime.CompilerServices;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace dcnsanplanung.wpf.ViewModel
+{
+    internal class BaseViewModel : INotifyPropertyChanged
+    {
+        public event PropertyChangedEventHandler? PropertyChanged;
+
+        void OnPropertyChanged([CallerMemberName] string propertyName = "")
+        {
+            if(PropertyChanged != null)
+            {
+                PropertyChanged(this, new PropertyChangedEventArgs(propertyName));
+            }
+        }
+    }
+}
diff --git a/dcnsanplanung.wpf/W_ObjektView.xaml b/dcnsanplanung.wpf/W_ObjektView.xaml
new file mode 100644
index 0000000..503c48a
--- /dev/null
+++ b/dcnsanplanung.wpf/W_ObjektView.xaml
@@ -0,0 +1,13 @@
+<Window x:Class="dcnsanplanung.wpf.W_ObjektView"
+        xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
+        xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
+        xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
+        xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
+        xmlns:local="clr-namespace:dcnsanplanung.wpf"
+        mc:Ignorable="d"
+        Title="W_ObjektView" Height="450" Width="800">
+    <Grid>
+        <Label Name="Schadensklasse" />
+
+    </Grid>
+</Window>
diff --git a/dcnsanplanung.wpf/W_ObjektView.xaml.cs b/dcnsanplanung.wpf/W_ObjektView.xaml.cs
new file mode 100644
index 0000000..6c6a835
--- /dev/null
+++ b/dcnsanplanung.wpf/W_ObjektView.xaml.cs
@@ -0,0 +1,31 @@
+using dcnsanplanung.shared.Model;
+using Schnittstelle.Import.XML.v2013.Model;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using System.Windows;
+using System.Windows.Controls;
+using System.Windows.Data;
+using System.Windows.Documents;
+using System.Windows.Input;
+using System.Windows.Media;
+using System.Windows.Media.Imaging;
+using System.Windows.Shapes;
+
+namespace dcnsanplanung.wpf
+{
+    /// <summary>
+    /// Interaktionslogik für W_ObjektView.xaml
+    /// </summary>
+    public partial class W_ObjektView : Window
+    {
+        public W_ObjektView(Haltung haltung)
+        {
+            InitializeComponent();
+
+            Schadensklasse.Content = haltung.Bewertungklasse;
+        }
+    }
+}
diff --git a/dcnsanplanung.wpf/dcnsanplanung.wpf.csproj b/dcnsanplanung.wpf/dcnsanplanung.wpf.csproj
index d84276c..ac2a18b 100644
--- a/dcnsanplanung.wpf/dcnsanplanung.wpf.csproj
+++ b/dcnsanplanung.wpf/dcnsanplanung.wpf.csproj
@@ -7,4 +7,10 @@
     <UseWPF>true</UseWPF>
   </PropertyGroup>
 
+  <ItemGroup>
+    <ProjectReference Include="..\dcnsanplanung.DAL\dcnsanplanung.DAL.csproj" />
+    <ProjectReference Include="..\dcnsanplanung.shared\dcnsanplanung.shared.csproj" />
+    <ProjectReference Include="..\Schnittstelle\Schnittstelle\Schnittstelle.csproj" />
+  </ItemGroup>
+
 </Project>