diff --git a/MP.MONO.Data/DbModels/CounterModel.cs b/MP.MONO.Data/DbModels/CounterModel.cs
index def0a62..332236c 100644
--- a/MP.MONO.Data/DbModels/CounterModel.cs
+++ b/MP.MONO.Data/DbModels/CounterModel.cs
@@ -17,7 +17,7 @@ namespace MP.MONO.Data.DbModels
         /// Codice Univoco
         /// </summary>
         [Key, DatabaseGenerated(DatabaseGeneratedOption.None), MaxLength(250)]
-        public string Code { get; set; } = "";
+        public string CCode { get; set; } = "";
 
         /// <summary>
         /// Descrizione
diff --git a/MP.MONO.Data/DbModels/MGroupModel.cs b/MP.MONO.Data/DbModels/PMMGroupModel.cs
similarity index 88%
rename from MP.MONO.Data/DbModels/MGroupModel.cs
rename to MP.MONO.Data/DbModels/PMMGroupModel.cs
index 1520d42..fe3d7e3 100644
--- a/MP.MONO.Data/DbModels/MGroupModel.cs
+++ b/MP.MONO.Data/DbModels/PMMGroupModel.cs
@@ -11,13 +11,13 @@ namespace MP.MONO.Data.DbModels
     /// Tabella valore MAchine Groups
     /// </summary>
     [Table("MachineGroup")]
-    public class MGroupModel
+    public class PMMGroupModel
     {
         /// <summary>
         /// Codice Univoco
         /// </summary>
         [Key, DatabaseGenerated(DatabaseGeneratedOption.None), MaxLength(250)]
-        public string Code { get; set; } = "";
+        public string PMMGCode { get; set; } = "";
 
         /// <summary>
         /// Descrizione
diff --git a/MP.MONO.Data/DbModels/PMTopicModel.cs b/MP.MONO.Data/DbModels/PMTopicModel.cs
index 2f33832..7019146 100644
--- a/MP.MONO.Data/DbModels/PMTopicModel.cs
+++ b/MP.MONO.Data/DbModels/PMTopicModel.cs
@@ -17,7 +17,7 @@ namespace MP.MONO.Data.DbModels
         /// Codice Univoco
         /// </summary>
         [Key, DatabaseGenerated(DatabaseGeneratedOption.None), MaxLength(250)]
-        public string Code { get; set; } = "";
+        public string PMTCode { get; set; } = "";
 
         /// <summary>
         /// Descrizione
diff --git a/MP.MONO.Data/DbModels/UserTeamModel.cs b/MP.MONO.Data/DbModels/PMUTModel.cs
similarity index 89%
rename from MP.MONO.Data/DbModels/UserTeamModel.cs
rename to MP.MONO.Data/DbModels/PMUTModel.cs
index c130350..de138e5 100644
--- a/MP.MONO.Data/DbModels/UserTeamModel.cs
+++ b/MP.MONO.Data/DbModels/PMUTModel.cs
@@ -11,13 +11,13 @@ namespace MP.MONO.Data.DbModels
     /// Tabella valore team utente
     /// </summary>
     [Table("UserTeam")]
-    public class UserTeamModel
+    public class PMUTModel
     {
         /// <summary>
         /// Codice Univoco
         /// </summary>
         [Key, DatabaseGenerated(DatabaseGeneratedOption.None), MaxLength(250)]
-        public string Code { get; set; } = "";
+        public string PMUTCode { get; set; } = "";
 
         /// <summary>
         /// Descrizione
diff --git a/MP.MONO.Data/DbModels/PrevMaintModel.cs b/MP.MONO.Data/DbModels/PrevMaintModel.cs
index 735a2d3..933f44d 100644
--- a/MP.MONO.Data/DbModels/PrevMaintModel.cs
+++ b/MP.MONO.Data/DbModels/PrevMaintModel.cs
@@ -32,15 +32,13 @@ namespace MP.MONO.Data.DbModels
         /// <summary>
         /// Area di riferimento generale x manutenzione
         /// </summary>
-        [MaxLength(50)]
-        public string Topic { get; set; } = "";
+        public string PMTCode { get; set; } = "";
 
         /// <summary>
         /// Gruppo logico di riferimento
         /// </summary>
-        [MaxLength(50)]
-        public string MachGroup { get; set; } = "";
-                
+        public string PMMGCode { get; set; } = "";
+
         /// <summary>
         /// Valore per trigger di expiry
         /// </summary>
@@ -54,30 +52,12 @@ namespace MP.MONO.Data.DbModels
         /// <summary>
         /// Team / Ruolo responsabile
         /// </summary>
-        [MaxLength(50)]
-        public string TeamInCharge { get; set; } = "";
+        public string PMUTCode { get; set; } = "";
 
         /// <summary>
         /// Contatore associato al task
         /// </summary>
-        public string CounterCode { get; set; } = "";
-
-#if false
-        /// <summary>
-        /// DataOra evento start
-        /// </summary>
-        public DateTime DtRif { get; set; } = DateTime.Now;
-
-        /// <summary>
-        /// Tipologia di driver del task
-        /// </summary>
-        public PMTaskDriver TDriver { get; set; } = PMTaskDriver.ND;
-
-        /// <summary>
-        /// Tipologia di timer del task
-        /// </summary>
-        public PMTimeInterval TTimer { get; set; } = PMTimeInterval.ND; 
-#endif
+        public string CCode { get; set; } = "";
 
         /// <summary>
         /// Navigazione oggetto Machine
@@ -88,7 +68,25 @@ namespace MP.MONO.Data.DbModels
         /// <summary>
         /// Navigazione oggetto Counter
         /// </summary>
-        [ForeignKey("CounterCode")]
+        [ForeignKey("CCode")]
         public virtual CounterModel CounterNav { get; set; } = null!;
+
+        /// <summary>
+        /// Navigazione oggetto User Team
+        /// </summary>
+        [ForeignKey("PMUTCode")]
+        public virtual PMUTModel UserTeamNav { get; set; } = null!;
+
+        /// <summary>
+        /// Navigazione oggetto User Team
+        /// </summary>
+        [ForeignKey("PMMGCode")]
+        public virtual PMMGroupModel MachGroupNav { get; set; } = null!;
+
+        /// <summary>
+        /// Navigazione oggetto User Team
+        /// </summary>
+        [ForeignKey("PMTCode")]
+        public virtual PMTopicModel TopicNav { get; set; } = null!;
     }
 }
diff --git a/MP.MONO.Data/MapoMonoContext.cs b/MP.MONO.Data/MapoMonoContext.cs
index 3fa799f..ca8f49a 100644
--- a/MP.MONO.Data/MapoMonoContext.cs
+++ b/MP.MONO.Data/MapoMonoContext.cs
@@ -90,7 +90,7 @@ namespace MP.MONO.Data
         /// <summary>
         /// DbSet User Team definiti x Prev Maint
         /// </summary>
-        public virtual DbSet<UserTeamModel> DbSetUTeam { get; set; } = null!;
+        public virtual DbSet<PMUTModel> DbSetUTeam { get; set; } = null!;
 
         /// <summary>
         /// DbSet Topics x Prev Maint
@@ -100,7 +100,7 @@ namespace MP.MONO.Data
         /// <summary>
         /// DbSet MachineGroup x Prev Maint
         /// </summary>
-        public virtual DbSet<MGroupModel> DbSetPMMachGroup { get; set; } = null!;
+        public virtual DbSet<PMMGroupModel> DbSetPMMachGroup { get; set; } = null!;
         /// <summary>
         /// DbSet Task di Prev Maint definiti
         /// </summary>
diff --git a/MP.MONO.Data/ModelBuilderExtensions.cs b/MP.MONO.Data/ModelBuilderExtensions.cs
index 6bb167c..c664f14 100644
--- a/MP.MONO.Data/ModelBuilderExtensions.cs
+++ b/MP.MONO.Data/ModelBuilderExtensions.cs
@@ -105,50 +105,50 @@ namespace MP.MONO.Data
 
             // inizializzazione dei valori di default x Tipologia counters
             modelBuilder.Entity<CounterModel>().HasData(
-                new CounterModel { Code = "MacPowerOn", Description = "Machine Power On" },
-                new CounterModel { Code = "CycleProc01", Description = "Process 1 on Cycle state" },
-                new CounterModel { Code = "SpindleTorque01", Description = "Spindle 01 Torque % > 0" },
-                new CounterModel { Code = "SpindleTorque02", Description = "Spindle 02 Torque % > 0" },
-                new CounterModel { Code = "SpindleTorque03", Description = "Spindle 03 Torque % > 0" },
-                new CounterModel { Code = "SpindleTorque04", Description = "Spindle 04 Torque % > 0" },
-                new CounterModel { Code = "LMCheckElapsed", Description = "Time Elapsed from last full Manufacturer Check" }
+                new CounterModel { CCode = "MacPowerOn", Description = "Machine Power On" },
+                new CounterModel { CCode = "CycleProc01", Description = "Process 1 on Cycle state" },
+                new CounterModel { CCode = "SpindleTorque01", Description = "Spindle 01 Torque % > 0" },
+                new CounterModel { CCode = "SpindleTorque02", Description = "Spindle 02 Torque % > 0" },
+                new CounterModel { CCode = "SpindleTorque03", Description = "Spindle 03 Torque % > 0" },
+                new CounterModel { CCode = "SpindleTorque04", Description = "Spindle 04 Torque % > 0" },
+                new CounterModel { CCode = "LMCheckElapsed", Description = "Time Elapsed from last full Manufacturer Check" }
                 );
 
             // inizializzazione dei valori di default x Tipologia UserTeam
-            modelBuilder.Entity<UserTeamModel>().HasData(
-                new UserTeamModel { Code = "TrainOp", Description = "Trained Operator" },
-                new UserTeamModel { Code = "MaintServ", Description = "Maintenance Service" },
-                new UserTeamModel { Code = "DevSupp", Description = "Device Supplier" },
-                new UserTeamModel { Code = "MultiaxServ", Description = "Multiax Service" }
+            modelBuilder.Entity<PMUTModel>().HasData(
+                new PMUTModel { PMUTCode = "TrainOp", Description = "Trained Operator" },
+                new PMUTModel { PMUTCode = "MaintServ", Description = "Maintenance Service" },
+                new PMUTModel { PMUTCode = "DevSupp", Description = "Device Supplier" },
+                new PMUTModel { PMUTCode = "MultiaxServ", Description = "Multiax Service" }
                 );
 
             // inizializzazione dei valori di default x Topic di Prev Maint
             modelBuilder.Entity<PMTopicModel>().HasData(
-                new PMTopicModel { Code = "Mechanical", Description = "Mechanical system" },
-                new PMTopicModel { Code = "Elettro", Description = "Electrical system" },
-                new PMTopicModel { Code = "Lubro", Description = "Lubrication system" },
-                new PMTopicModel { Code = "Coolant", Description = "Coolant system" },
-                new PMTopicModel { Code = "Preumo", Description = "Pneumatic system" },
-                new PMTopicModel { Code = "Hydro", Description = "Hydraulic system" },
-                new PMTopicModel { Code = "Safety", Description = "Enclosure/Safety system" },
-                new PMTopicModel { Code = "Suction", Description = "Suction system" },
-                new PMTopicModel { Code = "GeoAdj", Description = "Geometrical system" }
+                new PMTopicModel { PMTCode = "Mechanical", Description = "Mechanical system" },
+                new PMTopicModel { PMTCode = "Elettro", Description = "Electrical system" },
+                new PMTopicModel { PMTCode = "Lubro", Description = "Lubrication system" },
+                new PMTopicModel { PMTCode = "Coolant", Description = "Coolant system" },
+                new PMTopicModel { PMTCode = "Preumo", Description = "Pneumatic system" },
+                new PMTopicModel { PMTCode = "Hydro", Description = "Hydraulic system" },
+                new PMTopicModel { PMTCode = "Safety", Description = "Enclosure/Safety system" },
+                new PMTopicModel { PMTCode = "Suction", Description = "Suction system" },
+                new PMTopicModel { PMTCode = "GeoAdj", Description = "Geometrical system" }
                 );
 
             // inizializzazione dei valori di default x Machine Group
-            modelBuilder.Entity<MGroupModel>().HasData(
-                new MGroupModel { Code = "Whole", Description = "Whole Machine" },
-                new MGroupModel { Code = "Load", Description = "Part loader/unloader" },
-                new MGroupModel { Code = "MovBelts", Description = "Part moving belts" },
-                new MGroupModel { Code = "MovRoll", Description = "Part moving rollers" },
-                new MGroupModel { Code = "Axis", Description = "Machining axis" },
-                new MGroupModel { Code = "Spindles", Description = "Tool spindles" },
-                new MGroupModel { Code = "ToolChange", Description = "Automatic tool changer" },
-                new MGroupModel { Code = "Cabinet", Description = "Electrical cabinet" },
-                new MGroupModel { Code = "ChipConv", Description = "Chips conveyor" },
-                new MGroupModel { Code = "DustSuct", Description = "Dust suction" },
-                new MGroupModel { Code = "OpPanel", Description = "Operator pannel" },
-                new MGroupModel { Code = "Access", Description = "Accessories" }
+            modelBuilder.Entity<PMMGroupModel>().HasData(
+                new PMMGroupModel { PMMGCode = "Whole", Description = "Whole Machine" },
+                new PMMGroupModel { PMMGCode = "Load", Description = "Part loader/unloader" },
+                new PMMGroupModel { PMMGCode = "MovBelts", Description = "Part moving belts" },
+                new PMMGroupModel { PMMGCode = "MovRoll", Description = "Part moving rollers" },
+                new PMMGroupModel { PMMGCode = "Axis", Description = "Machining axis" },
+                new PMMGroupModel { PMMGCode = "Spindles", Description = "Tool spindles" },
+                new PMMGroupModel { PMMGCode = "ToolChange", Description = "Automatic tool changer" },
+                new PMMGroupModel { PMMGCode = "Cabinet", Description = "Electrical cabinet" },
+                new PMMGroupModel { PMMGCode = "ChipConv", Description = "Chips conveyor" },
+                new PMMGroupModel { PMMGCode = "DustSuct", Description = "Dust suction" },
+                new PMMGroupModel { PMMGCode = "OpPanel", Description = "Operator pannel" },
+                new PMMGroupModel { PMMGCode = "Access", Description = "Accessories" }
                 );
 
 #if false