<!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 / TestForecast2</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='TestForecast2.html'>TestForecast2</a></span> </p> <p class='vspace'>This test verifies the forecast distribution functionality.<br />This functionality allows specifying the forecast for a certain date range. FrePPLe then breaks it down into smaller time buckets that are used for planning. </p> <p class='vspace'>This functionality is typically used to translate between the time granularity of the sales department (which creates a sales forecast per e.g. calendar month) and the manufacturing department (which creates manufacturing and procurement plans in weekly or daily buckets).<br />Another usage is to model a delivery date profile of the customers. Each bucket has a weight that is used to model situations where the demand is not evenly spread across buckets: e.g. when more orders are expected due on a monday than on a friday, or when a peak of orders is expected for delivery near the end of a month. </p> <p class='vspace'>Two example scenarios are tested: </p><ul><li>The forecast value is specfied for a date range of 4 weeks.<br /> For planning in frePPLe the forecast is automatically spread over 21 daily buckets and a weekly bucket. Among the daily buckets, saturdays and sundays don't get any forecast. Also, mondays are busier than fridays and get a bigger share of the forecast. </li><li>The forecast value is specified in calendar months. For planning in frePPLe the forecast is spread over weeks.<br /> Since the week and month boundaries don't align, the forecast is proportionally split across all intersecting weeks. </li></ul> </div> <!--PageFooterFmt--> <!--HTMLFooter--> </div></div> </body> </html>
