System and methodology that facilitates client and server...

Details System and methodology that facilitates client and server... System and methodology that facilitates client and server...

2007-12-11

2007-12-11

Picard, Leo (Department: 2125)

Electrical computers and digital processing systems: multicomput

Distributed data processing

Client/server

C709S223000, C709S226000, C707S793000

Reexamination Certificate

active

10207484

ABSTRACT:
The present invention relates to a system and methodology providing a virtual “namespace” architecture between client and server components in an industrial automation environment, wherein the namespace can be a structured store of logical names, instances and definitions, together with access and modification components. An Active Directory Service Interface (ADSI) family can be employed, for example, to navigate and access the namespace structure and contents. The present invention employs the concept of a “service” to encapsulate server-side behavior accessed through the namespace. Thus, logical names can be utilized to decouple client components from the physical location and implementation of server components. Some services, known as “basic services”, may ignore the logical container structure exposed by an area model in a namespace. By contrast, services which utilize an area context and a set of named service items to interact with clients can be referred to as “namespace extensions.” Further, services known as “context services” may use the area model to scope and control accesses, yet not employ a service item namespace organized by the area model.

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