Thank you very much for your input. It is very helpful. I am enclosing package X10::Item.pm.

package X10::Item;


#---------------------------------------------------------------------
+---------#
# Libraries.                                                          
+         #
#---------------------------------------------------------------------
+---------#

use 5.006;
use version; our $VERSION = qv('0.01');
use lib qw'lib/ ../lib';
use strict;
use warnings;
use Data::Dumper;
#---------------------------------------------------------------------
+---------#
# Attributes.                                                         
+         #
#---------------------------------------------------------------------
+---------#

sub new {
    my $self  = {};
        $self->{PARENT}       = undef;
        $self->{TYPE}         = undef;
        $self->{NAME}         = undef;
        $self->{STATE}        = undef;
        $self->{HU}           = undef;
        $self->{DIMLEVEL}     = undef;
        bless($self);
    return $self;
}

sub parent {
    my $self = shift;
    if (@_) { $self->{PARENT} = shift }
    return $self->{PARENT};
}

sub type {
    my $self = shift;
    if (@_) { $self->{TYPE} = shift }
    return $self->{TYPE};
}

sub name {
    my $self = shift;
    if (@_) { $self->{NAME} = shift }
    return $self->{NAME};
}

sub state {
    my $self = shift;
    if (@_) { $self->{STATE} = shift }
    return $self->{STATE};
}

sub hu {
    my $self = shift;
    if (@_) { $self->{HU} = shift }
    return $self->{HU};
}

sub dimlevel {
    my $self = shift;
    if (@_) { $self->{DIMLEVEL} = shift }
    return $self->{DIMLEVEL};
}

sub timer {
    my $self = shift;
    if (@_) { $self->{TIMER} = shift }
    return $self->{TIMER};
}
1;
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