diff --git a/App/osbasics.php b/App/osbasics.php
new file mode 100644
index 0000000..bbf79ac
--- /dev/null
+++ b/App/osbasics.php
@@ -0,0 +1,200 @@
+<?php
+
+echo "osbasics\n";
+
+//problem 1
+
+assert(TRUE);
+
+//problem 2
+
+function tddStringEquals($expected,$result){
+	if (!($expected===$result)){
+		return FALSE;
+	}
+return TRUE;
+}
+
+assert(tddStringEquals("one","one"));
+
+
+//assert(tddAssertStringEquals("one","two"));
+
+
+//problem 3
+
+function AssertEquals($expected,$result){
+	if($expected!==$result){
+		throw new Exception("Assert Equals failed");
+	}
+return TRUE;
+}	
+	
+function AssertNotEquals($expected,$result){
+	if($expected===$result){
+		throw new Exception("Assert Not Equals Failed");
+	}
+	return TRUE;
+}
+	
+AssertEquals("one","one");
+//AssertEquals("one","two");
+
+AssertNotEquals("one","two");
+//AssertNotEquals("one","one");
+	
+//problem 4
+
+$failed=FALSE;
+try{
+	AssertEquals("one","two");
+} catch (Exception $e){
+	$failed=TRUE;
+}
+assert($failed);
+
+$failed=FALSE;
+try{
+	AssertNotEquals("one","one");
+} catch (Exception $e){
+	$failed=TRUE;
+}
+assert($failed);
+	
+//problem 5
+
+$xml=<<<XML
+	<?xml version="1.0" ?>
+	<osil><instanceHeader></osil>
+XML;
+		
+function osil(){
+	$osil=new SimpleXMLElement('<osil/>');
+	$osil-> addChild('instanceHeader');
+	return $osil-> asXML();
+			
+AssertEquals($xml,$osil);
+}
+	
+//Problem 6a
+	
+function AssertContainsString($needle,$haystack){
+	if (strpos($haystack,$needle)===FALSE){
+		throw new Exception("AssertContainsString failed");
+	}
+}
+AssertContainsString("needle","haystack needle");
+//AssertContainsString("needle","nada");	
+
+//AssertContainsString("needle","nada");
+$failed=FALSE;
+try{
+	//AssertContainsString("needle","needle");
+	AssertContainsString("needle","HAY");
+} catch (Exception $e){
+	$failed=TRUE;
+}
+assert($failed);
+
+//echo "passed\n";
+
+//Problem 6b
+
+function AssertContains($needle,$hay){
+	foreach($hay as $h)
+	if (strpos($h,$needle)!==FALSE){
+		return TRUE;
+	}	
+	throw new Exception("AssertContains failed");
+}
+AssertContains("needle",array("needle hay","hay needle"));
+//AssertContains("needle",array("hay hay","hay hay hay"));
+
+$failed=FALSE;
+try{
+	AssertContains("needle",array("hay","hay no sharp objects"));
+} catch (Exception $e){
+	$failed=TRUE;
+}
+assert($failed);
+
+//Problem 7
+
+exec("\\WebIS\\bin\\OSSolverService.exe -h",$output,$result);
+
+AssertEquals(0,$result);
+
+//print_r ($output);
+
+$failed=FALSE;
+try{
+	AssertContains("OS Version X.Y.Z",$output);
+	//AssertContains("OS Version: 2.",$output);
+} catch (Exception $e){
+	$failed=TRUE;
+}
+assert($failed);
+
+AssertContains("OS Version: 2.",$output);
+
+//problem 8
+
+function write($file){
+	$osil=new SimpleXMLElement('<osil/>');
+	$osil -> addchild('instanceHeader');
+	return $osil-> asXML($file);
+}
+
+write('test.xml');
+$xxml=file_get_contents('test.xml');
+
+//print_r($xxml);
+//print_r(osil());
+AssertEquals($xxml,osil());
+
+
+//Problem 9
+
+function solve(){
+	exec("\\WebIS\\bin\\OSSolverService.exe -osil test.xml -osrl solution.xml",$output,$result);
+	if ($result!==0){
+		throw new Exception("Solve function failed\n".implode("\n",$output));
+	}
+	return TRUE;
+}
+
+$osil=new SimpleXMLElement('<osil/>');
+$osil -> addchild('instanceHeader');
+$osil -> addChild('instanceData') -> addChild('objectives') -> addChild('obj') -> addAttribute('numberOfObjCoef',0);
+$osil -> asXML('test.xml');
+
+assert(solve());
+
+
+//problem 10
+
+
+function solution(){
+	$xml=file_get_contents('solution.xml');
+	//print_r($xml);
+	$osrl=new simpleXMLElement($xml);
+	//print_r($osrl);
+	$result=(string)$osrl -> optimization->solution->status->attributes()->type();
+	//print_r($result);
+	$value=(double)$osrl->optimization->solution->objectives->values->obj;
+	//print_r($value);
+	return $value;
+	//AssertEquals("optimal",$result);
+	//problem 11
+	//AssertContains("PARSER ERROR",$xml);
+}
+//solution();
+//assertEquals(solution(),0);
+
+//problem 12
+
+
+
+echo "done";
+
+?>
\ No newline at end of file
diff --git a/App/test.xml b/App/test.xml
new file mode 100644
index 0000000..edb4422
--- /dev/null
+++ b/App/test.xml
@@ -0,0 +1,2 @@
+<?xml version="1.0"?>
+<osil><instanceHeader/><instanceData><objectives><obj numberOfObjCoef="0"/></objectives></instanceData></osil>
diff --git a/WCS/os.php b/WCS/os.php
index e9a4abb..393502e 100644
--- a/WCS/os.php
+++ b/WCS/os.php
@@ -6,15 +6,16 @@ class OS {
 	static $DEBUG=FALSE;
 	static $solver="\\WebIS\\bin\OSSolverService.exe";
 	static $tmp="\\WebIS\\tmp\\"; // trailing slash required.
-
+	private $linear=FALSE;
+	
 	private $osil=NULL;
 	private $osrl=NULL;
 	private $var=array(); // Reverse IDX mapping ($idx->$name).
 	private $value=NULL;  // Solution value.
+	private $solution=NULL;
 
-	private $linear=FALSE;
 	
-	function __construct($maxOrMin='min') {
+	function __construct($maxOrMin='max') {
 		$osil=new \SimpleXMLElement('<osil/>');
 		$osil->addChild('instanceHeader')->addChild('name',php_uname('n').' '.date('c'));
 		$data=$osil->addChild('instanceData');
@@ -42,7 +43,7 @@ function getName(){
 		return (string)$this->osrl->general->instanceName;
 	}
 	
-	function addVariable($name,$type=null){
+	function addVariable($name,$type=NULL){
 		$variables=$this->osil->instanceData->variables; // shortcut
 		$this->var[$name]=$variables->var->count(); // $name to $idx (zero based -- preinsert)
 		$var=$variables->addChild('var');
@@ -72,7 +73,7 @@ function addObjCoef($name,$value){
 		$obj['numberOfObjCoef']=$obj->coef->count();
 	}
 
-	function addConstraint($ub=null,$lb=null){
+	function addConstraint($lb,$ub){
 		$constraints=$this->osil->instanceData->constraints;
 		$con=$constraints->addChild('con');
 		if(!is_null($lb)){
@@ -135,7 +136,8 @@ function solve(){
 		$this->osrl=new \SimpleXMLElement($xml);
 		$result=(string)$this->osrl->optimization->solution->status->attributes()->type;
 		if($result!=='optimal'){
-			return FALSE;
+			$this->solution=NULL;
+			return $result;
 		}
 
 		// save values to array
@@ -148,11 +150,12 @@ function solve(){
 			if(self::$DEBUG) print (float)$var."\n";
 		}
 
-		return (double)$this->osrl->optimization->solution->objectives->values->obj;
+		$this->solution=(double)$this->osrl->optimization->solution->objectives->values->obj;
+		return TRUE;
 	}
 	
 	function getSolution(){
-		return (double)$solution->objectives->values->obj;
+		return $this->solution;
 	}
 	
 }
diff --git a/WCS/osTest.php b/WCS/osTest.php
index 5578f9c..40c562b 100644
--- a/WCS/osTest.php
+++ b/WCS/osTest.php
@@ -18,29 +18,33 @@ function testOS() {
 
 	function testSolver(){
 		$os=new WebIS\OS();
-		$this->assertEquals(0.0,$os->solve(),"Solve empty problem");
+		$this->assertTrue($os->solve(),"Solve empty problem");
+		$this->assertEquals(0.0,$os->getSolution(),"Solution to empty problem is 0.0");
 		$this->assertContains(date('Y-m-d'),$os->getName(),"Solved today");
 		$os->addVariable('x1');
-		$this->assertEquals(0.0,$os->solve(),"Solve problem with only one variable");
+		$this->assertTrue($os->solve(),"Solve problem with only one variable");
+		$this->assertEquals(0.0,$os->getSolution(),"Solution to one variable is 0.0");
 		$this->assertEquals(0.0,$os->getVariable('x1'),"x1 is zero");
 		$os->addObjCoef('x1', '-1');
-		$this->assertEquals(0.0,$os->solve());
+		$this->assertEquals("unbounded",$os->solve(),"Problem is unbounded");
+		$this->assertEquals(0.0,$os->getSolution());
 		$os->addVariable('x2');
 		$os->addObjCoef('x2', '-2');
-		$os->addConstraint(40);
+		$os->addConstraint(NULL,40);
 		$os->addConstraintCoef('x1',1);
 		$os->addConstraintCoef('x2',1);
-		$os->addConstraint(60);
+		$os->addConstraint(NULL,60);
 		$os->addConstraintCoef('x1',2);
 		$os->addConstraintCoef('x2',1);
-		$this->assertEquals(-80.0,$os->solve());
+		$this->assertTrue($os->solve());
+		$this->assertEquals(-80.0,$os->getSolution());
 		$this->assertEquals(0,$os->getVariable('x1'));
 		$this->assertEquals(40,$os->getVariable('x2'));
 		
 		## test LB
 		$os=new WebIS\OS();
 		$os->addVariable('x1');
-		$os->addConstraint(NULL,40);
+		$os->addConstraint(40,NULL);
 		$this->assertContains('lb=',$os->getOsil());
 		
 	}
diff --git a/Web/ExamRestart.php b/Web/ExamRestart.php
new file mode 100644
index 0000000..14406da
--- /dev/null
+++ b/Web/ExamRestart.php
@@ -0,0 +1,28 @@
+<?php
+
+$capacity= array("s1" => 600, "s2" => 300, "s3" => 200);
+//print_r($capacity);
+
+$demand=array("d1"=>600, "d2"=>200, "d3"=>300);
+//print_r($demand);
+
+$profit=array("d1"=>20, "d2"=>30, "d3"=>40);
+//print_r($profit['d1']);
+
+$distance=array("s1,d1"=>2, "s1,d2"=>3, "s1,d3"=>3,"s2,d1"=>5, "s2,d2"=>2, "s2,d3"=>4, "s3,d1"=>3, "s3,d2"=>2, "s3,d3"=>8);
+//print_r($distance['s1,d1']);
+
+$a=$demand['d1']*$profit['d1'];
+//print_r($a);
+$b=$demand['d2']*$profit['d2'];
+$c=$demand['d3']*$profit['d3'];
+
+$revenue=$a+$b+$c;
+//print_r($revenue);
+
+//300 from s1 to d1
+
+//300 from s1 to d3
+
+
+?>
\ No newline at end of file
diff --git a/Web/Final-PartE.php b/Web/Final-PartE.php
new file mode 100644
index 0000000..8e8966d
--- /dev/null
+++ b/Web/Final-PartE.php
@@ -0,0 +1,194 @@
+<?php
+require_once 'Work-Cell-Scheduler/Web/tdd.php';
+require_once 'Work-Cell-Scheduler/WCS/os.php';
+
+
+$supply=array();
+$demand=array();
+$department=array();
+$capacity=array();
+$profit=array();
+
+$numsuppliers=4;
+
+for($i=0;$i<$numsuppliers;$i++){
+	$supply[]="supply-${i}";
+}
+//print_r($supply);
+assertEquals($numsuppliers,sizeof($supply));
+$capacity=array();
+$capacity[0]=600;
+$capacity[1]=300;
+$capacity[2]=200;
+$capacity[3]=500;
+//print_r($su);
+
+
+$numdepartment=5;
+for($i=0;$i<$numdepartment;$i++){
+	$department[]="department-${i}";
+}
+
+assertEquals($numdepartment,sizeof($department));
+$demand=array();
+$demand[0]=600;
+$demand[1]=200;
+$demand[2]=300;
+$demand[3]=100;
+$demand[4]=300;
+
+//print_r($demand);
+
+$profit=array();
+$numprofit=5;
+for($i=0;$i<$numprofit;$i++){
+	$profit[]="profit-${i}";
+}
+$profit[0]=20;
+$profit[1]=30;
+$profit[2]=40;
+$profit[3]=25;
+$profit[4]=25;
+
+
+$a=$demand[0]*$profit[0];
+//print_r($a);
+$b=$demand[1]*$profit[1];
+$c=$demand[2]*$profit[2];
+$d=$demand[3]*$profit[3];
+$e=$demand[4]*$profit[4];
+
+//$revenue=$a+$b+$c+$d+$e;
+//print_r($revenue."\n");
+
+
+
+class ShippingClass{
+	private $matrix=array();
+	
+	function set($supply,$department,$shipping){
+		$this->matrix["${supply}_${department}"]=$shipping;
+	}
+	
+	function get($supply,$department){
+		if(array_key_exists("${supply}_${department}",$this->matrix)){
+			return $this->matrix["${supply}_${department}"];
+		}
+		return FALSE;
+	}
+}
+
+$shipping=new ShippingClass;
+
+//Test Get and Set
+assertEquals(FALSE,$shipping->get('supply-0','department-0'));
+$shipping->set('supply-0','department-0',2);
+assertEquals(2,$shipping->get('supply-0','department-0'));
+$shipping->set('supply-0','department-1',3);
+$shipping->set('supply-0','department-2',3);
+$shipping->set('supply-0','department-3',3);
+$shipping->set('supply-0','department-4',3);
+
+$shipping->set('supply-1','department-0',5);
+$shipping->set('supply-1','department-1',2);
+$shipping->set('supply-1','department-2',4);
+$shipping->set('supply-1','department-3',4);
+$shipping->set('supply-1','department-4',2);
+
+$shipping->set('supply-2','department-0',3);
+$shipping->set('supply-2','department-1',2);
+$shipping->set('supply-2','department-2',8);
+$shipping->set('supply-2','department-3',2);
+$shipping->set('supply-2','department-4',2);
+
+$shipping->set('supply-3','department-0',3);
+$shipping->set('supply-3','department-1',2);
+$shipping->set('supply-3','department-2',4);
+$shipping->set('supply-3','department-3',2);
+$shipping->set('supply-3','department-4',2);
+
+
+//print_r($shipping);
+//print_r($shipping->get($supply[0],$department[0]));
+
+
+//Profit for each department respectively
+$d0=array(20,30,40,25,25);
+//print_r($d0[1]);
+
+//Production costs for each plant respectively
+$p0=array(10,14,40,11);
+
+
+//revenue array = (profit for each department) - (shipping cost) - (production cost)
+$revenue=array();
+foreach($supply as $s){
+	foreach(array_combine($department,$d0) as $d => $d1){
+		$var="${s}_${d}";
+		$revenue[$var]=$d1-$shipping->get($s,$d);
+		
+	}
+}
+
+foreach($department as $d){
+	foreach(array_combine($supply,$p0) as $s => $p1){
+		$var="${s}_${d}";
+		$revenue[$var]-=$p1;
+	}
+}
+//print_r($revenue);
+
+//Start Optimization
+
+$os=new \WebIS\OS;
+
+//print_r($os->solve());
+assertTrue($os->solve());
+
+foreach($supply as $s){
+	foreach($department as $d){
+		$var="${s}_${d}";
+		//print_r($var."\n");
+		$os->addVariable($var);
+		$os->addObjCoef($var,$revenue[$var]);
+	}
+}
+
+//print_r($os);
+//echo"here\n";
+
+foreach(array_combine($department,$demand) as $dep => $dem){
+	$os->addConstraint($dem,NULL);
+	//print_r($dem."\n");
+	//print_r($dep."\n");
+	foreach($supply as $s){
+		$vari="${s}_${dep}";
+		//print_r($vari."\n");
+		$os->addConstraintCoef($vari,1);
+	}
+}
+
+
+
+foreach(array_combine($capacity,$supply) as $c => $s){
+	$os->addConstraint(NULL,$c);
+	foreach($department as $d){
+		$vari="${s}_${d}";
+		$os->addConstraintCoef($vari,1);
+	}
+}
+
+
+
+assertTrue($os->solve());
+
+
+
+$os->solve();
+$maxprofit=$os->getsolution();
+print_r("max profit: ".$maxprofit."\n");
+
+
+
+//echo"End";
+?>
\ No newline at end of file
diff --git a/Web/FinalPartB.php b/Web/FinalPartB.php
new file mode 100644
index 0000000..719dc7f
--- /dev/null
+++ b/Web/FinalPartB.php
@@ -0,0 +1,130 @@
+<?php
+require_once 'Work-Cell-Scheduler/Web/tdd.php';
+require_once 'Work-Cell-Scheduler/WCS/os.php';
+
+
+$supply=array();
+$demand=array();
+$department=array();
+$capacity=array();
+$profit=array();
+
+$numsuppliers=rand(10,20);
+for($i=0;$i<$numsuppliers;$i++){
+	$supply[]="supply-${i}";
+}
+//print_r($supply);
+assertEquals($numsuppliers,sizeof($supply));
+
+for($i=0;$i<$numsuppliers;$i++){
+	$capacity[]=rand(200,600);
+}
+
+
+$numdepartment=rand(10,20);
+for($i=0;$i<$numdepartment;$i++){
+	$department[]="department-${i}";
+}
+//print_r($department);
+assertEquals($numdepartment,sizeof($department));
+
+
+$profit=array();
+$numprofit=rand(10,20);
+for($i=0;$i<$numprofit;$i++){
+	$profit[]="profit-${i}";
+}
+//print_r($profit);
+
+
+for($i=0;$i<$numdepartment;$i++){
+	$demand[]=rand(200,600);
+}
+
+
+//print_r($demand);
+
+
+class ShippingClass{
+	private $matrix=array();
+	
+	function set($supply,$department,$shipping){
+		$this->matrix["${supply}_${department}"]=$shipping;
+	}
+	
+	function get($supply,$department){
+		if(array_key_exists("${supply}_${department}",$this->matrix)){
+			return $this->matrix["${supply}_${department}"];
+		}
+		return FALSE;
+	}
+}
+
+$shipping=new ShippingClass;
+
+foreach($supply as $s){
+$shipping->set($s,$department[array_rand($department)],rand(1,8));
+}
+
+
+//print_r($shipping);
+
+
+
+//Start Optimization
+
+$os=new \WebIS\OS;
+
+//print_r($os->solve());
+assertTrue($os->solve());
+
+foreach($supply as $s){
+	foreach($department as $d){
+		$var="${s}_${d}";
+		//print_r($var."\n");
+		$os->addVariable($var);
+		$os->addObjCoef($var,$shipping->get($s,$d));
+	}
+}
+
+
+
+foreach(array_combine($demand,$department) as $dem => $dep){
+	$os->addConstraint(NULL,$dem);
+	//print_r($dem."\n");
+	//print_r($dep."\n");
+	foreach($supply as $s){
+		$vari="${s}_${dep}";
+		//print_r($vari."\n");
+		$os->addConstraintCoef($vari,1);
+	}
+}
+
+
+
+foreach(array_combine($capacity,$supply) as $c => $s){
+	$os->addConstraint($c,NULL);
+	foreach($department as $d){
+		$vari="${s}_${d}";
+		//print_r($vari."\n");
+		$os->addConstraintCoef($vari,1);
+	}
+}
+
+
+
+
+assertTrue($os->solve());
+//echo"here";
+
+//print_r($os);
+
+$os->solve();
+$minshippingcost=$os->getsolution();
+print_r($minshippingcost);
+//$maxprofit=$revenue-$minshippingcost;
+//print_r("max profit: ".$maxprofit."\n");
+
+
+//echo"End";
+?>
\ No newline at end of file
diff --git a/Web/a6.php b/Web/a6.php
new file mode 100644
index 0000000..711ecf9
--- /dev/null
+++ b/Web/a6.php
@@ -0,0 +1,84 @@
+<?php
+// Optimization Services Test Copyright 2014 by WebIS Spring 2014 License Apache 2.0
+require_once 'Work-Cell-Scheduler/TDD/validator.php';
+require_once 'Work-Cell-Scheduler/WCS/os.php';
+include 'Work-Cell-Scheduler/Config/local.php';
+
+
+class OsTestCase extends WebIS\Validator {
+
+	protected static $__CLASS__=__CLASS__;
+
+	// Basic OSSolverServices test.
+	function testOS() {
+		exec(WebIS\OS::$solver." --version",$output,$return);
+		$this->assertEquals(0,$return);
+		$this->assertContains("OS Version: 2.",$output[5]);
+	}
+
+	function testSolver(){
+		$os=New WebIS\OS;
+		$this->assertEquals(0.0,$os->solve(),"Solve empty problem");
+		$this->assertContains(date('Y-m-d'),$os->getName(),"Solved today");
+		$os->addVariable('x11');
+		//$this->assertEquals(0.0,$os->solve(),"Solve problem with only one variable");
+		//$this->assertEquals(0.0,$os->getVariable('x11'),"x11 is zero");
+		$os->addObjCoef('x11', '3');
+		//$this->assertEquals(0.0,$os->solve());
+		
+		$os->addVariable('x12');
+		$os->addObjCoef('x12', '2');
+		
+		$os->addVariable('x21');
+		$os->addObjCoef('x21', '1');
+	
+		$os->addVariable('x22');
+		$os->addObjCoef('x22', '5');
+		
+		$os->addVariable('x31');
+		$os->addObjCoef('x31', '5');
+		
+		$os->addVariable('x32');
+		$os->addObjCoef('x32', '4');
+		
+		$os->addConstraint($ub=45);
+		$os->addConstraintCoef('x11',1);
+		$os->addConstraintCoef('x12',1);
+		
+		$os->addConstraint($ub=60);
+		$os->addConstraintCoef('x21',1);
+		$os->addConstraintCoef('x22',1);
+		
+		
+		$os->addConstraint($ub=35);
+		$os->addConstraintCoef('x31',1);
+		$os->addConstraintCoef('x32',1);
+		
+		$os->addConstraint(null,50);
+		$os->addConstraintCoef('x11',1);
+		$os->addConstraintCoef('x21',1);
+		$os->addConstraintCoef('x31',1);
+		
+		$os->addConstraint(null,60);
+		$os->addConstraintCoef('x12',1);
+		$os->addConstraintCoef('x22',1);
+		$os->addConstraintCoef('x32',1);
+		
+		print_r($os->solve());
+		
+		//$this->assertEquals(-80.0,$os->solve());
+		//$this->assertEquals(0,$os->getVariabl
+		
+		//$this->assertEquals(40,$os->getVariable('x2'));
+		
+		//print_r($os->getVariable('x11'));		
+		//print_r($os->getVariable('x12'));
+		
+	}
+}
+
+if (!defined('PHPUnit_MAIN_METHOD')) {
+	OsTestCase::main();
+}
+
+?>
diff --git a/Web/a7.php b/Web/a7.php
new file mode 100644
index 0000000..d20dae3
--- /dev/null
+++ b/Web/a7.php
@@ -0,0 +1,113 @@
+<?php
+
+
+$worker=array();
+$numworker=5;
+
+for($i=0;$i<$numworker;$i++){
+	$worker[$i]="worker-".$i;
+	//print_r ($worker[$i]."\n");
+}
+
+//print_r($worker);
+
+$cell=array();
+$numcell=5;
+
+for($i=0;$i<$numcell;$i++){
+	$cell[$i]="cell-".$i;
+	//echo $cell[$i]."\n";
+}
+
+$product=array();
+$numproduct=6;
+
+for($i=0;$i<$numproduct;$i++){
+	$product[$i]="product-".$i;
+	//echo $product[$i]."\n";
+}
+
+assertequals($worker[3],"worker-3");
+assertNotEquals($product[3],"product-4");
+
+$w=rand(0,$numworker-1);
+echo $worker[$w]."\n";
+
+
+$hours=rand(1,3);
+//print_r($hours."\n");
+
+//Problem B3
+
+class Demand{
+
+	public $product=array();
+	public $cell=array();
+	public $hour=array();
+	
+	function __construct($p,$c,$h){
+		$this->product=$p;
+		//print_r($this->product);
+		$this->cell=$c;
+		$this->hour=$h;
+	}
+	
+}
+
+$demand=array();
+
+foreach($product as $p){
+	
+	$demand[]=new Demand($p,"$ccell",rand(1,3));
+}
+
+//print_r($demand);
+
+
+//Problem B4
+
+class Training{
+	
+	
+	public $worker=array();
+	public $cellproductivity=array();
+
+	function __construct($w,$cp){
+		$this->worker=$w;
+		$this->cellproductivity=$cp;
+	}
+	
+	function set($p){
+		if($p===NULL){
+		$p=(rand(60,100))/100.0;
+		}
+		print_r($p);
+	}
+	
+	function get($worker,$cell,$productivity){
+		
+	}
+	
+}
+
+$traingingMatrix[]=array();
+
+
+foreach($worker as $w){
+	$w=$worker[rand(0,$numworker-1)];
+	$c=$cell[rand(0,$numcell-1)];
+	$value="${c}_${w}"."\n";
+	$trainingMatrix[$value]=(rand(60,100)/100.0);
+}
+
+//print_r($value);
+
+print_r($trainingMatrix);
+
+
+
+
+
+echo"you made it to the end.";
+
+?>
\ No newline at end of file
diff --git a/Web/osil.xml b/Web/osil.xml
new file mode 100644
index 0000000..5044f93
--- /dev/null
+++ b/Web/osil.xml
@@ -0,0 +1,2 @@
+<?xml version="1.0"?>
+<osil><instanceHeader><name>EBE3404-PC-22 2014-04-21T11:20:00-05:00</name></instanceHeader><instanceData><variables numberOfVariables="6"><var name="x11"/><var name="x12"/><var name="x21"/><var name="x22"/><var name="x31"/><var name="x32"/></variables><objectives><obj numberOfObjCoef="6" maxOrMin="min"><coef idx="0">3</coef><coef idx="1">2</coef><coef idx="2">1</coef><coef idx="3">5</coef><coef idx="4">5</coef><coef idx="5">4</coef></obj></objectives><constraints numberOfConstraints="5"><con ub="45"/><con ub="60"/><con ub="35"/><con lb="50"/><con lb="60"/></constraints><linearConstraintCoefficients numberOfValues="12"><start><el>0</el><el>2</el><el>4</el><el>6</el><el>9</el><el>12</el></start><colIdx><el>0</el><el>1</el><el>2</el><el>3</el><el>4</el><el>5</el><el>0</el><el>2</el><el>4</el><el>1</el><el>3</el><el>5</el></colIdx><value><el>1</el><el>1</el><el>1</el><el>1</el><el>1</el><el>1</el><el>1</el><el>1</el><el>1</el><el>1</el><el>1</el><el>1</el></value></linearConstraintCoefficients></instanceData></osil>
diff --git a/Web/tdd.php b/Web/tdd.php
new file mode 100644
index 0000000..b31a328
--- /dev/null
+++ b/Web/tdd.php
@@ -0,0 +1,25 @@
+<?php
+function AssertEquals($expected,$result){
+	if(!($expected==$result)){
+		throw new Exception("Assert Equals failed");
+	}
+}
+
+assertEquals("1","1");
+
+function AssertNotEquals($expected,$result){
+	if($expected===$result){
+		throw new Exception("Assert Not Equals Failed");
+	}
+	return TRUE;
+}
+
+function assertTrue($result){
+	return assertEquals(TRUE,$result);
+}
+
+function assertFalse($result){
+	return assertEquals(FALSE,$result);
+}
+
+?>
\ No newline at end of file