Исполнитель: создал модели данных

VeterinaryView/VeterinaryDataModels/IOwnerModel.cs

@@ -0,0 +1,9 @@
+namespace VeterinaryDataModels
+{
+	public interface IOwnerModel : IId
+	{
+		string OwnerFIO { get; }
+		string Login {  get; }
+		string Password { get; }
+	}
+}

VeterinaryView/VeterinaryDataModels/IPetModel.cs

@@ -0,0 +1,11 @@
+namespace VeterinaryDataModels
+{
+	public interface IPetModel : IId
+	{
+		int OwnerId { get; }
+		string PetName { get; }
+		string PetType { get; }
+		string PetBreed { get; }
+		string PetGender { get; }
+	}
+}

VeterinaryView/VeterinaryDataModels/IPurchaseModel.cs

@@ -0,0 +1,10 @@
+namespace VeterinaryDataModels
+{
+	public interface IPurchaseModel : IId
+	{
+		int OwnerId { get; }
+		int DrugId { get; }
+		string Count { get; }
+		DateTime DatePurchase { get; }
+	}
+}

VeterinaryView/VeterinaryDataModels/IVisitModel.cs

@@ -0,0 +1,9 @@
+namespace VeterinaryDataModels
+{
+	public interface IVisitModel : IId
+	{
+		int OwnerId { get; }
+		int DoctorId { get; }
+		DateTime DateVisit { get; }
+	}
+}