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<p class=MsoNormal><span style='font-size:10.0pt'><o:p> </o:p></span></p>
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tab-stops:list 1.0in'><![if !supportLists]><span style='font-size:10.0pt;
font-family:Symbol;mso-fareast-font-family:Symbol;mso-bidi-font-family:Symbol'><span
style='mso-list:Ignore'>·<span style='font:7.0pt "Times New Roman"'>
</span></span></span><![endif]><span style='font-size:10.0pt'>Identity or name<o:p></o:p></span></p>
<p class=MsoNormal style='margin-left:1.0in;text-indent:-.25in;mso-list:l2 level1 lfo3;
tab-stops:list 1.0in'><![if !supportLists]><span style='font-size:10.0pt;
font-family:Symbol;mso-fareast-font-family:Symbol;mso-bidi-font-family:Symbol'><span
style='mso-list:Ignore'>·<span style='font:7.0pt "Times New Roman"'>
</span></span></span><![endif]><span style='font-size:10.0pt'>Attributes<o:p></o:p></span></p>
<p class=MsoNormal style='margin-left:1.0in;text-indent:-.25in;mso-list:l2 level1 lfo3;
tab-stops:list 1.0in'><![if !supportLists]><span style='font-size:10.0pt;
font-family:Symbol;mso-fareast-font-family:Symbol;mso-bidi-font-family:Symbol'><span
style='mso-list:Ignore'>·<span style='font:7.0pt "Times New Roman"'>
</span></span></span><![endif]><span style='font-size:10.0pt'>Methods<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt'>A <i style='mso-bidi-font-style:
normal'>class </i>is a formal specification for creating instances of
objects.<span style='mso-spacerun:yes'> </span>The class defines the allowed
attributes names and the methods that are used within an object to access or
update attribute values.<span style='mso-spacerun:yes'> </span>Classes within
Perl are defined in a separate text file called a <i style='mso-bidi-font-style:
normal'>module.<span style='mso-spacerun:yes'> </span></i>A class is a Perl
module that follows some simple rules (see ‘perldoc perlobj’ for more details).<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt'>The <i style='mso-bidi-font-style:
normal'>encapsulation </i>of data within an object is one of the key benefits
of OO programming.<span style='mso-spacerun:yes'> </span>Many programs can
share the same object, but the data within the object cannot be accessed
directly.<span style='mso-spacerun:yes'> </span>Instead of using global
variables, OO programs rely on an Object to be the single point of control for
attribute values.<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt'><o:p> </o:p></span></p>
<h1><![if !supportLists]><span style='font-size:10.0pt;font-family:Helvetica;
mso-fareast-font-family:Helvetica'><span style='mso-list:Ignore'>3.<span
style='font:7.0pt "Times New Roman"'> </span></span></span><![endif]><span
style='font-size:10.0pt;font-family:Helvetica;mso-bidi-font-family:Arial'>A
Model for ClearCase<o:p></o:p></span></h1>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoBodyText>A OO model could be created for ClearCase.<span
style='mso-spacerun:yes'> </span>Here one:</p>
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<v:stroke joinstyle="miter"/>
<v:formulas>
<v:f eqn="if lineDrawn pixelLineWidth 0"/>
<v:f eqn="sum @0 1 0"/>
<v:f eqn="sum 0 0 @1"/>
<v:f eqn="prod @2 1 2"/>
<v:f eqn="prod @3 21600 pixelWidth"/>
<v:f eqn="prod @3 21600 pixelHeight"/>
<v:f eqn="sum @0 0 1"/>
<v:f eqn="prod @6 1 2"/>
<v:f eqn="prod @7 21600 pixelWidth"/>
<v:f eqn="sum @8 21600 0"/>
<v:f eqn="prod @7 21600 pixelHeight"/>
<v:f eqn="sum @10 21600 0"/>
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<o:lock v:ext="edit" aspectratio="t"/>
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<table cellpadding=0 cellspacing=0 align=left>
<tr>
<td width=0 height=7></td>
</tr>
<tr>
<td></td>
<td><img width=372 height=384
src="Creating_Reuseable_Perl_Scripts_files/image002.gif" v:shapes="_x0000_s1028"></td>
</tr>
</table>
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