created and deployed new 1301 tests convert to a pending start 1302 state when set up is complete but the tests have not been deployed once a test has been deployed and activated on the site it is in progress 1303 a test in progress can expire 1305 at its predefined end date or be manually upgraded to complete 1304 or promoted 1306 an expired test continues to collect data until it is manually completed or promoted a complete test no longer collects data the control test cell is displayed on the site in place of the test cells however test cells may still be promoted or the test can be retired 1307 a retired test is one that has ended without a winner being promoted the class diagram in fig1 shows an example of how the site optimizer system and functions may be implemented each type of test 1401 is associated with a test strategy 1402 a site test 1403 contains two or more test cells 1404 with test cell assignments for tracking the session and requisition if a shopping cart is opened 1405 the site test is associated with one or more products and pops 1405 staging and deployment status is tracked for each test 1406 when the shopper first visits the site the system calculates a random percentage between 0 and 100 the shopper is randomly assigned to a test cell using that percentage and the traffic segmentation assigned to test cells when test offers.