Intelligent cleaning sensors – the machine will be able to determine how long its cleaning cycle should be, depending on how dirty the dishes/pans are.
Internal Food Disposer – A stainless steel blade for chopping off hard food particles like popcorn kernels, as well as soft foods. These tiny food particles are then removed with the drain water.
Salt Indicator - When the salt container is empty, light or indicator shows when the salt needs topping up. Salt enhances the washing ability and is not required in soft water areas.
Rack Design - Which dishwasher can hold the most nos. of dishes, odd shaped dishes, bowls on top or lower shelves or, double height frying pans. They tend to come in 8 and 12 place setting racks.
Wash cycles – Dishwashers come with a range of wash cycles and if you're in a rush, getting one with a quick wash is a must. Quick wash for lightly soiled dishes, Economy for using of minimum amount of water to clean the dishes quickly. For crockery, the extra delicate glassware cycle and Intensive wash for cleaning of pots and pans.
Dishwashers 
AEG C115DDM Dishwashers
