<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <html xmlns="http://www.w3.org/1999/xhtml"> <head> <meta http-equiv="Content-Type" content="text/xhtml;charset=UTF-8"/> <title>Frepple / TestConstraintsLeadtime1</title> <link rel='stylesheet' href='../styles.css' type='text/css' /> <!--PageHeaderFmt--> </head> <body> <div id="container"> <div id="menubar"> <div id="logo" align="center"> <br/><img src='../frepple.bmp' alt="frepple" /><br/> <a href='http://www.frepple.com/'> <strong>a Free<br/>Production Planning<br/>Library</strong> </a></div> <div id="menu"> <br/> <h3><a href='../Main/HomePage.html'>Main</a></h3> <h3><a href='../UI/Main.html'>User Manual</a></h3> <h3><a href='../Tutorial/Main.html'>Tutorial</a></h3> <h3><a href='Main.html'>Reference Manual</a></h3> <h3><a href='../Main/FAQ.html'>FAQ</a></h3> <h3><a href='../reference/index.html'>C++ API</a></h3> <br/><div> </div> </div> </div> <div id="content"> <br/> <!--PageText--> <div id='wikitext'> <p><a class='wikilink' href='../Main/HomePage.html'>Main</a> > <span class='wikitrail'><a class='wikilink' href='Main.html'>Reference Manual</a> > <a class='wikilink' href='Test.html'>Unit tests</a> > <a class='selflink' href='TestConstraintsLeadtime1.html'>TestConstraintsLeadtime1</a></span> </p> <p class='vspace'>This test verifies the solver behavior for lead time constraints. Demands are placed on the network such that operations are planned in the past in the unconstrained plan. Demands are appropriately shorted or planned late in the constrained plan to solve the problems. </p> <div class='vspace'></div><div><img src='../uploads/Frepple/constraints_leadtime_1.jpg' alt='' title='' /></div> <p class='vspace'>A first order for 7 units is due on day 3 after the current date.<br />It is planned to be delivered late on day 8: the production of the end item starts on the current date, and takes 7 days. The delivery takes an additional day. </p> <p class='vspace'>A second order for 14 units is due on day 11.<br />The inventory of the subassembly is now depleted and 6 new subassemblies need to be produced. These subassemblies are due on day 3.<br />In the 2 days between the current date and the due date of the subassemblies 2 units can be produced. There are 3 subassembly operations are planned in parallel, each for 2 units, starting on the current day and finishing on day 3.<br />Sufficient raw material is available in inventory for the subassemblies.<br />The order is delivered on time. </p> </div> <!--PageFooterFmt--> <!--HTMLFooter--> </div></div> </body> </html>
