Upon purchase, the client needs to have the own criteria for each product depending on the needs, preferences and economic conditions. E.G.: when customers want to buy a vehicle to support the work, it would have high economic conditions will buy the car, and the person would have medium economic will buy motorcycles. When the decision to buy a product they need to have the comparison and reviews by customizing inks between today's labels and other labels, between this feature and other features, between the parameters and results in a demand e.g. when buying 1 smokestack, smart phone, people like to take pictures the camera phone will choose nice and sharp on the other hand, people like the game will select 1 have strong profiles phone match meeting with gaming.
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