P4ItemDef def = model.createItemDef(name, desc, null);
        def.setDataType(model.findDataType("FLOAT"));
        def.addDimension(model.findDimension("PROD"), true);
        def.addDimension(model.findDimension("WEEK"), true);
        def.addDimension(model.findDimension("ACCT"), true);
        def.addStoredLevel(model.findDimension("PROD").getBaseLevel(), true);
        def.addStoredLevel(model.findDimension("WEEK").getBaseLevel(), true);
        def.addStoredLevel(model.findDimension("ACCT").getBaseLevel(), true);
        def.setAggregationType(model.findAggregationType("SUM"));
        def.setType(model.findItemType("BASE_ENTERED_AGGREGATE_AGGREGATE"));
        model.createItem(def);