article_snippet: The technology, which was introduced in 2008, used infrared sensors to determine how many checkouts to open by monitoring the number of customer flowing through the store.
article_snippet: It meant that during quieter periods staff could be taken off the tills and placed in other parts of the store.
article_snippet: Morrisons was the only British retailer to use iQM, which used infrared sensors both at the entrance to the store and over each checkout lanes.
article_snippet: It was supposed to enable checkout managers to predict exactly when shoppers would arrive at the checkouts so the tills were open for shoppers when shoppers got there.
highlights_snippet: Morrisons's CEO David Potts used special sensors to determine how many checkouts should be open .
  