A change to the general rules of kitchen design is underway as the popularity of the work triangle diminishes, experts have claimed.Abigail R Esman of Home and Garden Television found that the multi-purpose nature of the modern kitchen is changing designs from a focus on work triangles to an emhasis on work zones.This means that several people can carry out activities in the room at the same time.She Told Deseret News The work triangle, created to save money on building materials and to make cooks more efficient, has inspired kitchen design since the 1940s.It standardised kitchens by placing the sink, stove and refrigerator at opposite points, allowing cooks to move from storage and cleaning to cooking with a simple step-and-turn. Since families are more likely today to share the load, setting up kitchen zones gives everyone a task and a place to do it.Having more than one kitchen sink and refrigerator has also been suggested by Ms Esman.