diff --git a/PrecastConcretePlant/PrecastConcretePlant.sln b/PrecastConcretePlant/PrecastConcretePlant.sln
index 513b733..eb34c37 100644
--- a/PrecastConcretePlant/PrecastConcretePlant.sln
+++ b/PrecastConcretePlant/PrecastConcretePlant.sln
@@ -9,9 +9,11 @@ Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "PrecastConcretePlantDataMod
 EndProject
 Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "PrecastConcretePlantContracts", "PrecastConcretePlantContracts\PrecastConcretePlantContracts.csproj", "{7BBA6D17-DDEE-4971-A350-2C4677A28B3D}"
 EndProject
-Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "PrecastConcretePlantBusinessLogic", "PrecastConcretePlantBusinessLogic\PrecastConcretePlantBusinessLogic.csproj", "{6C45F2BD-77AE-4324-B567-3B1FFAE52DA1}"
+Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "PrecastConcretePlantBusinessLogic", "PrecastConcretePlantBusinessLogic\PrecastConcretePlantBusinessLogic.csproj", "{6C45F2BD-77AE-4324-B567-3B1FFAE52DA1}"
 EndProject
-Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "PrecastConcretePlantListImplement", "PrecastConcretePlantListImplement\PrecastConcretePlantListImplement.csproj", "{432CDD30-04CE-4505-999C-1FC85C2220B1}"
+Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "PrecastConcretePlantListImplement", "PrecastConcretePlantListImplement\PrecastConcretePlantListImplement.csproj", "{432CDD30-04CE-4505-999C-1FC85C2220B1}"
+EndProject
+Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "PrecastConcretePlantFileImplement", "PrecastConcretePlantFileImplement\PrecastConcretePlantFileImplement.csproj", "{0260BB94-674A-490D-9B8F-0525FBD520A1}"
 EndProject
 Global
 	GlobalSection(SolutionConfigurationPlatforms) = preSolution
@@ -39,6 +41,10 @@ Global
 		{432CDD30-04CE-4505-999C-1FC85C2220B1}.Debug|Any CPU.Build.0 = Debug|Any CPU
 		{432CDD30-04CE-4505-999C-1FC85C2220B1}.Release|Any CPU.ActiveCfg = Release|Any CPU
 		{432CDD30-04CE-4505-999C-1FC85C2220B1}.Release|Any CPU.Build.0 = Release|Any CPU
+		{0260BB94-674A-490D-9B8F-0525FBD520A1}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{0260BB94-674A-490D-9B8F-0525FBD520A1}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{0260BB94-674A-490D-9B8F-0525FBD520A1}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{0260BB94-674A-490D-9B8F-0525FBD520A1}.Release|Any CPU.Build.0 = Release|Any CPU
 	EndGlobalSection
 	GlobalSection(SolutionProperties) = preSolution
 		HideSolutionNode = FALSE
diff --git a/PrecastConcretePlant/PrecastConcretePlantFileImplement/DataFileSingleton.cs b/PrecastConcretePlant/PrecastConcretePlantFileImplement/DataFileSingleton.cs
new file mode 100644
index 0000000..587388c
--- /dev/null
+++ b/PrecastConcretePlant/PrecastConcretePlantFileImplement/DataFileSingleton.cs
@@ -0,0 +1,55 @@
+using PrecastConcretePlantFileImplement.Models;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using System.Xml.Linq;
+
+namespace PrecastConcretePlantFileImplement
+{
+    public class DataFileSingleton
+    {
+        private static DataFileSingleton? instance;
+        private readonly string ComponentFileName = "Component.xml";
+        private readonly string OrderFileName = "Order.xml";
+        private readonly string ReinforcedFileName = "Reinforced.xml";
+        public List<Component> Components { get; private set; }
+        public List<Order> Orders { get; private set; }
+        public List<Reinforced> Reinforceds { get; private set; }
+        public static DataFileSingleton GetInstance()
+        {
+            if (instance == null)
+            {
+                instance = new DataFileSingleton();
+            }
+            return instance;
+        }
+        public void SaveComponents() => SaveData(Components, ComponentFileName, "Components", x => x.GetXElement);
+        public void SaveReinforceds() => SaveData(Reinforceds, ReinforcedFileName, "Reinforceds", x => x.GetXElement);
+        public void SaveOrders() => SaveData(Orders, OrderFileName, "Orders", x => x.GetXElement);
+        private DataFileSingleton()
+        {
+            Components = LoadData(ComponentFileName, "Component", x => Component.Create(x)!)!;
+            Reinforceds = LoadData(ReinforcedFileName, "Reinforced", x => Reinforced.Create(x)!)!;
+            Orders = LoadData(OrderFileName, "Order", x => Order.Create(x)!)!;
+        }
+        private static List<T>? LoadData<T>(string filename, string xmlNodeName, Func<XElement, T> selectFunction)
+        {
+            if (File.Exists(filename))
+            {
+                return
+               XDocument.Load(filename)?.Root?.Elements(xmlNodeName)?.Select(selectFunction)?.ToList();
+            }
+            return new List<T>();
+        }
+        private static void SaveData<T>(List<T> data, string filename, string xmlNodeName, Func<T, XElement> selectFunction)
+        {
+            if (data != null)
+            {
+                new XDocument(new XElement(xmlNodeName,
+               data.Select(selectFunction).ToArray())).Save(filename);
+            }
+        }
+    }
+}
diff --git a/PrecastConcretePlant/PrecastConcretePlantFileImplement/Implements/ComponentStorage.cs b/PrecastConcretePlant/PrecastConcretePlantFileImplement/Implements/ComponentStorage.cs
new file mode 100644
index 0000000..2e8a3f9
--- /dev/null
+++ b/PrecastConcretePlant/PrecastConcretePlantFileImplement/Implements/ComponentStorage.cs
@@ -0,0 +1,84 @@
+using PrecastConcretePlantContracts.BindingModels;
+using PrecastConcretePlantContracts.SearchModels;
+using PrecastConcretePlantContracts.StoragesContracts;
+using PrecastConcretePlantContracts.ViewModels;
+using PrecastConcretePlantFileImplement.Models;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace PrecastConcretePlantFileImplement.Implements
+{
+    public class ComponentStorage : IComponentStorage
+    {
+        private readonly DataFileSingleton source;
+        public ComponentStorage()
+        {
+            source = DataFileSingleton.GetInstance();
+        }
+        public List<ComponentViewModel> GetFullList()
+        {
+            return source.Components
+                .Select(x => x.GetViewModel)
+                .ToList();
+        }
+        public List<ComponentViewModel> GetFilteredList(ComponentSearchModel model)
+        {
+            if (string.IsNullOrEmpty(model.ComponentName))
+            {
+                return new();
+            }
+            return source.Components
+                .Where(x => x.ComponentName.Contains(model.ComponentName))
+                .Select(x => x.GetViewModel)
+                .ToList();
+        }
+        public ComponentViewModel? GetElement(ComponentSearchModel model)
+        {
+            if (string.IsNullOrEmpty(model.ComponentName) && !model.Id.HasValue)
+            {
+                return null;
+            }
+            return source.Components
+                .FirstOrDefault(x => (!string.IsNullOrEmpty(model.ComponentName) 
+                && x.ComponentName == model.ComponentName) || (model.Id.HasValue && x.Id == model.Id))?.GetViewModel;
+        }
+        public ComponentViewModel? Insert(ComponentBindingModel model)
+        {
+            model.Id = source.Components.Count > 0 ? source.Components.Max(x => x.Id) + 1 : 1;
+            var newComponent = Component.Create(model);
+            if (newComponent == null)
+            {
+                return null;
+            }
+            source.Components.Add(newComponent);
+            source.SaveComponents();
+            return newComponent.GetViewModel;
+        }
+        public ComponentViewModel? Update(ComponentBindingModel model)
+        {
+            var component = source.Components.FirstOrDefault(x => x.Id == model.Id);
+            if (component == null)
+            {
+                return null;
+            }
+            component.Update(model);
+            source.SaveComponents();
+            return component.GetViewModel;
+        }
+        public ComponentViewModel? Delete(ComponentBindingModel model)
+        {
+            var element = source.Components.FirstOrDefault(x => x.Id ==
+           model.Id);
+            if (element != null)
+            {
+                source.Components.Remove(element);
+                source.SaveComponents();
+                return element.GetViewModel;
+            }
+            return null;
+        }
+    }
+}
diff --git a/PrecastConcretePlant/PrecastConcretePlantFileImplement/Implements/OrderStorage.cs b/PrecastConcretePlant/PrecastConcretePlantFileImplement/Implements/OrderStorage.cs
new file mode 100644
index 0000000..e88ba0d
--- /dev/null
+++ b/PrecastConcretePlant/PrecastConcretePlantFileImplement/Implements/OrderStorage.cs
@@ -0,0 +1,94 @@
+using PrecastConcretePlantContracts.BindingModels;
+using PrecastConcretePlantContracts.SearchModels;
+using PrecastConcretePlantContracts.StoragesContracts;
+using PrecastConcretePlantContracts.ViewModels;
+using PrecastConcretePlantFileImplement.Models;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace PrecastConcretePlantFileImplement.Implements
+{
+    public class OrderStorage : IOrderStorage
+    {
+        private readonly DataFileSingleton source;
+
+        public OrderStorage()
+        {
+            source = DataFileSingleton.GetInstance();
+        }
+
+        public OrderViewModel? Delete(OrderBindingModel model)
+        {
+            var element = source.Orders.FirstOrDefault(x => x.Id == model.Id);
+
+            if (element != null)
+            {
+                source.Orders.Remove(element);
+                source.SaveOrders();
+
+                return element.GetViewModel;
+            }
+
+            return null;
+        }
+
+        public OrderViewModel? GetElement(OrderSearchModel model)
+        {
+            if (!model.Id.HasValue)
+            {
+                return null;
+            }
+
+            return source.Orders.FirstOrDefault(x => (model.Id.HasValue && x.Id == model.Id))?.GetViewModel;
+        }
+
+        public List<OrderViewModel> GetFilteredList(OrderSearchModel model)
+        {
+            if (!model.Id.HasValue)
+            {
+                return new();
+            }
+
+            return source.Orders.Where(x => x.Id == model.Id).Select(x => x.GetViewModel).ToList();
+        }
+
+        public List<OrderViewModel> GetFullList()
+        {
+            return source.Orders.Select(x => x.GetViewModel).ToList();
+        }
+
+        public OrderViewModel? Insert(OrderBindingModel model)
+        {
+            model.Id = source.Orders.Count > 0 ? source.Orders.Max(x => x.Id) + 1 : 1;
+            var newOrder = Order.Create(model);
+
+            if (newOrder == null)
+            {
+                return null;
+            }
+
+            source.Orders.Add(newOrder);
+            source.SaveOrders();
+
+            return newOrder.GetViewModel;
+        }
+
+        public OrderViewModel? Update(OrderBindingModel model)
+        {
+            var order = source.Orders.FirstOrDefault(x => x.Id == model.Id);
+
+            if (order == null)
+            {
+                return null;
+            }
+
+            order.Update(model);
+            source.SaveOrders();
+
+            return order.GetViewModel;
+        }
+    }
+}
diff --git a/PrecastConcretePlant/PrecastConcretePlantFileImplement/Implements/ReinforcedStorage.cs b/PrecastConcretePlant/PrecastConcretePlantFileImplement/Implements/ReinforcedStorage.cs
new file mode 100644
index 0000000..b68cfdb
--- /dev/null
+++ b/PrecastConcretePlant/PrecastConcretePlantFileImplement/Implements/ReinforcedStorage.cs
@@ -0,0 +1,94 @@
+using PrecastConcretePlantContracts.BindingModels;
+using PrecastConcretePlantContracts.SearchModels;
+using PrecastConcretePlantContracts.StoragesContracts;
+using PrecastConcretePlantContracts.ViewModels;
+using PrecastConcretePlantFileImplement.Models;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace PrecastConcretePlantFileImplement.Implements
+{
+    public class ReinforcedStorage : IReinforcedStorage
+    {
+        private readonly DataFileSingleton source;
+
+        public ReinforcedStorage()
+        {
+            source = DataFileSingleton.GetInstance();
+        }
+
+        public ReinforcedViewModel? Delete(ReinforcedBindingModel model)
+        {
+            var element = source.Reinforceds.FirstOrDefault(x => x.Id == model.Id);
+
+            if (element != null)
+            {
+                source.Reinforceds.Remove(element);
+                source.SaveReinforceds();
+
+                return element.GetViewModel;
+            }
+
+            return null;
+        }
+
+        public ReinforcedViewModel? GetElement(ReinforcedSearchModel model)
+        {
+            if (string.IsNullOrEmpty(model.ReinforcedName) && !model.Id.HasValue)
+            {
+                return null;
+            }
+
+            return source.Reinforceds.FirstOrDefault(x => (!string.IsNullOrEmpty(model.ReinforcedName) && x.ReinforcedName == model.ReinforcedName) || (model.Id.HasValue && x.Id == model.Id))?.GetViewModel;
+        }
+
+        public List<ReinforcedViewModel> GetFilteredList(ReinforcedSearchModel model)
+        {
+            if (string.IsNullOrEmpty(model.ReinforcedName))
+            {
+                return new();
+            }
+
+            return source.Reinforceds.Where(x => x.ReinforcedName.Contains(model.ReinforcedName)).Select(x => x.GetViewModel).ToList();
+        }
+
+        public List<ReinforcedViewModel> GetFullList()
+        {
+            return source.Reinforceds.Select(x => x.GetViewModel).ToList();
+        }
+
+        public ReinforcedViewModel? Insert(ReinforcedBindingModel model)
+        {
+            model.Id = source.Reinforceds.Count > 0 ? source.Reinforceds.Max(x => x.Id) + 1 : 1;
+            var newReinforced = Reinforced.Create(model);
+
+            if (newReinforced == null)
+            {
+                return null;
+            }
+
+            source.Reinforceds.Add(newReinforced);
+            source.SaveReinforceds();
+
+            return newReinforced.GetViewModel;
+        }
+
+        public ReinforcedViewModel? Update(ReinforcedBindingModel model)
+        {
+            var reinforced = source.Reinforceds.FirstOrDefault(x => x.Id == model.Id);
+
+            if (reinforced == null)
+            {
+                return null;
+            }
+
+            reinforced.Update(model);
+            source.SaveReinforceds();
+
+            return reinforced.GetViewModel;
+        }
+    }
+}
diff --git a/PrecastConcretePlant/PrecastConcretePlantFileImplement/Models/Component.cs b/PrecastConcretePlant/PrecastConcretePlantFileImplement/Models/Component.cs
new file mode 100644
index 0000000..4f95010
--- /dev/null
+++ b/PrecastConcretePlant/PrecastConcretePlantFileImplement/Models/Component.cs
@@ -0,0 +1,60 @@
+using PrecastConcretePlantContracts.BindingModels;
+using PrecastConcretePlantContracts.ViewModels;
+using PrecastConcretePlantDataModels.Models;
+using System.Xml.Linq;
+
+namespace PrecastConcretePlantFileImplement.Models
+{
+    public class Component : IComponentModel
+    {
+        public int Id { get; private set; }
+        public string ComponentName { get; private set; } = string.Empty;
+        public double Cost { get; set; }
+        public static Component? Create(ComponentBindingModel? model)
+        {
+            if (model == null)
+            {
+                return null;
+            }
+            return new Component()
+            {
+                Id = model.Id,
+                ComponentName = model.ComponentName,
+                Cost = model.Cost
+            };
+        }
+        public static Component? Create(XElement element)
+        {
+            if (element == null)
+            {
+                return null;
+            }
+            return new Component()
+            {
+                Id = Convert.ToInt32(element.Attribute("Id")!.Value),
+                ComponentName = element.Element("ComponentName")!.Value,
+                Cost = Convert.ToDouble(element.Element("Cost")!.Value)
+            };
+        }
+        public void Update(ComponentBindingModel? model)
+        {
+            if (model == null)
+            {
+                return;
+            }
+            ComponentName = model.ComponentName;
+            Cost = model.Cost;
+        }
+        public ComponentViewModel GetViewModel => new()
+        {
+            Id = Id,
+            ComponentName = ComponentName,
+            Cost = Cost
+        };
+
+        public XElement GetXElement => new("Component",
+            new XAttribute("Id", Id),
+            new XElement("ComponentName", ComponentName),
+            new XElement("Cost", Cost.ToString()));
+    }
+}
diff --git a/PrecastConcretePlant/PrecastConcretePlantFileImplement/Models/Order.cs b/PrecastConcretePlant/PrecastConcretePlantFileImplement/Models/Order.cs
new file mode 100644
index 0000000..9fd823c
--- /dev/null
+++ b/PrecastConcretePlant/PrecastConcretePlantFileImplement/Models/Order.cs
@@ -0,0 +1,100 @@
+using PrecastConcretePlantContracts.BindingModels;
+using PrecastConcretePlantContracts.ViewModels;
+using PrecastConcretePlantDataModels.Enums;
+using PrecastConcretePlantDataModels.Models;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using System.Xml.Linq;
+
+namespace PrecastConcretePlantFileImplement.Models
+{
+    public class Order : IOrderModel
+    {
+        public int Id { get; private set; }
+
+        public int ReinforcedId { get; private set; }
+
+        public string ReinforcedName { get; private set; } = string.Empty;
+
+        public int Count { get; private set; }
+
+        public double Sum { get; private set; }
+
+        public OrderStatus Status { get; private set; }
+
+        public DateTime DateCreate { get; private set; }
+
+        public DateTime? DateImplement { get; private set; }
+
+        public static Order? Create(OrderBindingModel? model)
+        {
+            if (model == null)
+            {
+                return null;
+            }
+            return new Order()
+            {
+                ReinforcedId = model.ReinforcedId,
+                ReinforcedName = model.ReinforcedName,
+                Count = model.Count,
+                Sum = model.Sum,
+                Status = model.Status,
+                DateCreate = model.DateCreate,
+                DateImplement = model.DateImplement,
+                Id = model.Id,
+            };
+        }
+        public static Order? Create(XElement element)
+        {
+            if (element == null)
+            {
+                return null;
+            }
+            string dateImplement = element.Element("DateImplement")!.Value;
+            return new Order()
+            {
+                Id = Convert.ToInt32(element.Attribute("Id")!.Value),
+                ReinforcedId = Convert.ToInt32(element.Element("ReinforcedId")!.Value),
+                ReinforcedName = element.Element("ReinforcedName")!.Value.ToString(),
+                Count = Convert.ToInt32(element.Element("Count")!.Value),
+                Sum = Convert.ToDouble(element.Element("Sum")!.Value),
+                Status = (OrderStatus)(Enum.Parse(typeof(OrderStatus), element.Element("Status")!.Value)),
+                DateCreate = Convert.ToDateTime(element.Element("DateCreate")!.Value),
+                DateImplement = (dateImplement == "" || dateImplement is null) ? Convert.ToDateTime(null) : Convert.ToDateTime(dateImplement)
+            };
+        }
+        public void Update(OrderBindingModel? model)
+        {
+            if (model == null)
+            {
+                return;
+            }
+            Status = model.Status;
+            DateImplement = model.DateImplement;
+        }
+        public OrderViewModel GetViewModel => new()
+        {
+            Id = Id,
+            ReinforcedId = ReinforcedId,
+            ReinforcedName = ReinforcedName,
+            Count = Count,
+            Sum = Sum,
+            Status = Status,
+            DateCreate = DateCreate,
+            DateImplement = DateImplement
+        };
+
+        public XElement GetXElement => new("Order",
+            new XAttribute("Id", Id),
+            new XElement("ReinforcedName", ReinforcedName),
+            new XElement("ReinforcedId", ReinforcedId.ToString()),
+            new XElement("Count", Count.ToString()),
+            new XElement("Sum", Sum.ToString()),
+            new XElement("Status", Status.ToString()),
+            new XElement("DateCreate", DateCreate.ToString()),
+            new XElement("DateImplement", DateImplement.ToString()));
+    }
+}
diff --git a/PrecastConcretePlant/PrecastConcretePlantFileImplement/Models/Reinforced.cs b/PrecastConcretePlant/PrecastConcretePlantFileImplement/Models/Reinforced.cs
new file mode 100644
index 0000000..e27f221
--- /dev/null
+++ b/PrecastConcretePlant/PrecastConcretePlantFileImplement/Models/Reinforced.cs
@@ -0,0 +1,90 @@
+using PrecastConcretePlantContracts.BindingModels;
+using PrecastConcretePlantContracts.ViewModels;
+using PrecastConcretePlantDataModels.Models;
+using System.Xml.Linq;
+
+namespace PrecastConcretePlantFileImplement.Models
+{
+    public class Reinforced : IReinforcedModel
+    {
+        public int Id { get; private set; }
+        public string ReinforcedName { get; private set; } = string.Empty;
+        public double Price { get; private set; }
+        public Dictionary<int, int> Components { get; private set; } = new();
+
+        private Dictionary<int, (IComponentModel, int)>? _reinforcedComponents = null;
+        public Dictionary<int, (IComponentModel, int)> ReinforcedComponents
+        {
+            get
+            {
+                if (_reinforcedComponents == null)
+                {
+                    var source = DataFileSingleton.GetInstance();
+                    _reinforcedComponents = Components.ToDictionary(x => x.Key, y =>
+                    ((source.Components.FirstOrDefault(z => z.Id == y.Key) as IComponentModel)!,
+                    y.Value));
+                }
+                return _reinforcedComponents;
+            }
+        }
+        public static Reinforced? Create(ReinforcedBindingModel model)
+        {
+            if (model == null)
+            {
+                return null;
+            }
+            return new Reinforced()
+            {
+                Id = model.Id,
+                ReinforcedName = model.ReinforcedName,
+                Price = model.Price,
+                Components = model.ReinforcedComponents.ToDictionary(x => x.Key, x => x.Value.Item2)
+            };
+        }
+        public static Reinforced? Create(XElement element)
+        {
+            if (element == null)
+            {
+                return null;
+            }
+            return new Reinforced()
+            {
+                Id = Convert.ToInt32(element.Attribute("Id")!.Value),
+                ReinforcedName = element.Element("ReinforcedName")!.Value,
+                Price = Convert.ToDouble(element.Element("Price")!.Value),
+                Components =
+                element.Element("ReinforcedComponents")!.Elements("ReinforcedComponent")
+                .ToDictionary(x =>
+                Convert.ToInt32(x.Element("Key")?.Value), x =>
+                Convert.ToInt32(x.Element("Value")?.Value))
+            };
+        }
+        public void Update(ReinforcedBindingModel model)
+        {
+            if (model == null)
+            {
+                return;
+            }
+            ReinforcedName = model.ReinforcedName;
+            Price = model.Price;
+            Components = model.ReinforcedComponents.ToDictionary(x => x.Key, x => x.Value.Item2);
+            _reinforcedComponents = null;
+        }
+        public ReinforcedViewModel GetViewModel => new()
+        {
+            Id = Id,
+            ReinforcedName = ReinforcedName,
+            Price = Price,
+            ReinforcedComponents = ReinforcedComponents
+        };
+        public XElement GetXElement => new("Reinforced",
+            new XAttribute("Id", Id),
+            new XElement("ReinforcedName", ReinforcedName),
+            new XElement("Price", Price.ToString()),
+            new XElement("ReinforcedComponents", Components.Select(x =>
+                new XElement("ReinforcedComponent",
+                new XElement("Key", x.Key),
+                new XElement("Value", x.Value)))
+                .ToArray()));
+        }
+}
diff --git a/PrecastConcretePlant/PrecastConcretePlantFileImplement/PrecastConcretePlantFileImplement.csproj b/PrecastConcretePlant/PrecastConcretePlantFileImplement/PrecastConcretePlantFileImplement.csproj
new file mode 100644
index 0000000..9e035ab
--- /dev/null
+++ b/PrecastConcretePlant/PrecastConcretePlantFileImplement/PrecastConcretePlantFileImplement.csproj
@@ -0,0 +1,14 @@
+<Project Sdk="Microsoft.NET.Sdk">
+
+  <PropertyGroup>
+    <TargetFramework>net8.0</TargetFramework>
+    <ImplicitUsings>enable</ImplicitUsings>
+    <Nullable>enable</Nullable>
+  </PropertyGroup>
+
+  <ItemGroup>
+    <ProjectReference Include="..\PrecastConcretePlantContracts\PrecastConcretePlantContracts.csproj" />
+    <ProjectReference Include="..\PrecastConcretePlantDataModels\PrecastConcretePlantDataModels.csproj" />
+  </ItemGroup>
+
+</Project>
diff --git a/PrecastConcretePlant/PrecastConcretePlantView/PrecastConcretePlantView.csproj b/PrecastConcretePlant/PrecastConcretePlantView/PrecastConcretePlantView.csproj
index cb3c1f6..593d673 100644
--- a/PrecastConcretePlant/PrecastConcretePlantView/PrecastConcretePlantView.csproj
+++ b/PrecastConcretePlant/PrecastConcretePlantView/PrecastConcretePlantView.csproj
@@ -17,6 +17,7 @@
     <ProjectReference Include="..\PrecastConcretePlantBusinessLogic\PrecastConcretePlantBusinessLogic.csproj" />
     <ProjectReference Include="..\PrecastConcretePlantContracts\PrecastConcretePlantContracts.csproj" />
     <ProjectReference Include="..\PrecastConcretePlantDataModels\PrecastConcretePlantDataModels.csproj" />
+    <ProjectReference Include="..\PrecastConcretePlantFileImplement\PrecastConcretePlantFileImplement.csproj" />
     <ProjectReference Include="..\PrecastConcretePlantListImplement\PrecastConcretePlantListImplement.csproj" />
   </ItemGroup>
 
diff --git a/PrecastConcretePlant/PrecastConcretePlantView/Program.cs b/PrecastConcretePlant/PrecastConcretePlantView/Program.cs
index 5fbed1a..4de5eb5 100644
--- a/PrecastConcretePlant/PrecastConcretePlantView/Program.cs
+++ b/PrecastConcretePlant/PrecastConcretePlantView/Program.cs
@@ -4,7 +4,7 @@ using NLog.Extensions.Logging;
 using PrecastConcretePlantBusinessLogic.BusinessLogics;
 using PrecastConcretePlantContracts.BusinessLogicsContracts;
 using PrecastConcretePlantContracts.StoragesContracts;
-using PrecastConcretePlantListImplement.Implements;
+using PrecastConcretePlantFileImplement.Implements;
 using System;
 
 namespace PrecastConcretePlantView