Abstract: In a server-client web-enabled networked computing system including a database containing eyeglass frame image information for a plurality of eyeglass frames, a system and method allows for a customer to virtually try on eyeglass frames by enabling a computer system to provide an esthetically realistic rendition of the customer wearing the eyeglass frames through virtual digital imaging means for display on the customer's computer so the customer can view his/herself in the selected eyeglass frames. An eye-care professional first visits a customer at a customer location to obtain all necessary measurements and account creation data. Subsequently, the user may access the virtual try-on system. A utility enabling side-by-side comparison permits the customer to view side-by-side displays of the customer virtually fitted with esthetically realistic images of eyeglass frames to aid in choosing a preferred eyeglass frames for purchase.

Abstract: Permits one program in one address space to obtain access to data in another address space without invoking a supervisor. Each of a plurality of address spaces assigned an Address Space Number (ASN) has an associated set of address translation tables. Addressability to a second address space may be specified by a program if authorized in accordance with the entry of an authority table associated with the second address space, the entry being designated by an authorization index associated with the program.