Develop ideas, the answers need to be very detailed. Remember it is not only the “what” but also “how” and “why”

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sources

Blockchain

Walmart uses Blockchain technology to collaborate with their suppliers to establish a sturdy supply chain.  

Artificial Intelligence

Walmart has adopted artificial intelligence to assist both personal shoppers and customers in identifying the best substitutes for a product that has run out of stock.  

IoT

Walmart also incorporates IoT in its operations to assist it in maintaining food on freezers and coolers at the right temperature.  IoT works to ensure that food retains good quality by monitoring the refrigeration unit systems while at the same time ensuring that the food is according to good safety standards.