The pace of change accelerated considerably in the following century, and women and men's fashion, especially in the dressing and adorning of the hair, became equally complex. Art historians are therefore able to use fashion with confidence and precision to date images, often to within five years, particularly in the case of images from the 15th century. Initially, changes in fashion led to a fragmentation across the upper classes of Europe of what had previously been a very similar style of dressing and the subsequent development of distinctive national styles. These national styles remained very different until a counter-movement in the 17th to 18th centuries imposed similar styles once again, mostly originating from Ancien Régime France. Though the rich usually led fashion, the increasing affluence of early modern Europe led to the bourgeoisie and even peasants following trends at a distance, but still uncomfortably close for the elites – a factor that Fernand Braudel regards as one of the main motors of changing fashion.
Not only did political events make a huge impact on fashion trends but also the political figure played a critical role in forecasting the fashion trend. For example, First Lady Jacqueline Kennedy was a fashionable icon of the early 1960s who led formal dressing trend. By wearing a Chanel suit, a structural Givenchy shift dress or a soft color Cassini coat with huge buttons, it created her elegant look and led a delicate trend.
Often consumers need to be told what they want. Fashion companies have to do their research to ensure they know their customers' needs before developing solutions. Steve Jobs said, "You’ve got to start with the customer experience and work backwards to the technology. You cannot start with the technology and try to figure out where you are going to sell it".
fashion, style, and fad mean the way that up-to-date people do things. fashion is used of any custom (as a way of dressing or behaving) that is widely accepted at any one time or place. It was once the fashion for everyone to wear hats. style may suggest a fashion that is approved of by people with taste. The house was decorated in the latest style. fad is used for something that is very popular and often only for a short time. Beach tennis may be just a fad.