<EntityType Name="T024">
  <Key>
   <PropertyRef Name="ID_PERSONNEL"/>
  </Key>
  <Property Name="FIRSTNAME_PERSONNEL" Type="Edm.String"/>
  <Property Name="ID_PERSONNEL" Type="Edm.String" Nullable="false"/>
  <Property Name="LASTNAME_PERSONNEL" Type="Edm.String"/>
  <NavigationProperty Name="T027Details"
  Relationship="AtosForm.T027_T024_Many_Many0" FromRole="T024"
  ToRole="T027"/>
</EntityType>

<EntityType Name="T027">
  <Key>
   <PropertyRef Name="ID_PLANNING"/>
  </Key>
  <Property Name="ID_PLANNING" Type="Edm.Int32" Nullable="false"/>
  <Property Name="BEG_DATETIME" Type="Edm.DateTime"/>
  <Property Name="END_DATETIME" Type="Edm.DateTime"/>
  <NavigationProperty Name="T024Details"
  Relationship="AtosForm.T027_T024_Many_Many0" FromRole="T027"
  ToRole="T024"/>
 </EntityType>

var oUpdatePersonnel = {};
        oUpdatePersonnel.T027Details = {
            __metadata: {
                uri: "/T027s(4)"
            }
        };
        oModelCont.update("/T024s('T02400000')",oUpdatePersonnel, {
            success: function(oData) {},
            error: function(oError) {}
        });