What are the advantages of views?

bellow some of  sql views advantages :

• it could normalize data relations, so end user can get Understandable data.
• through views you could increase securities, so end user get data as wanted by developer.
• when designing a view, the definition of  it will be stored on database then developers could not need redefine it, which make their jobs easier.
• with materialized views, you could decreasing response time. also it might be used on transferring data to other hosts.