<TD VALIGN="TOP"><FONT FACE="Verdana, Arial, Helvetica, sans-serif"> Since the servlet is the initial contact point for each request, it is well-suited to handle logic that is common across multiple requests. A good example of this type of logic is an authentication check. </FONT> </TD></TR>
<TD VALIGN="TOP"><FONT FACE="Verdana, Arial, Helvetica, sans-serif"> Using a business delegate reduces coupling between the presentation and business tiers. The presentation tier has no knowledge of the EJB implementation details, such as Java Naming and Directory Interface<SUP><FONT SIZE="-2">TM</FONT></SUP> lookup. </FONT> </TD></TR>