Retail design the middle of town. The first shopping centre in the Netherlands was built in the 1950s, as retail design ideas began spreading east. The next evolution of retail design was the creation of the boutique in the 1960s, which emphasized retail design run by individuals. Some of the earliest examples of boutiques are the Biba boutique created by Barbara Hulanicki and the Habitat line of stores made by Terence Conran. The rise of the boutique was followed, in the next two decades, with an overall increase in consumer spending across the developed world. This rise made retail design shift to
Biba Model down"). The Biba model defines a set of security rules, the first two of which are similar to the Bell–LaPadula model. These first two rules are the reverse of the Bell–LaPadula rules: Biba Model The Biba Model or Biba Integrity Model developed by Kenneth J. Biba in 1975, is a formal state transition system of computer security policy that describes a set of access control rules designed to ensure data integrity. Data and subjects are grouped into ordered levels of integrity. The model is designed so that subjects may not corrupt data in a level ranked higher than the subject,