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This Concept Map, created with IHMC CmapTools, has information related to: ch9, name services: names, addresses and other attributes: any process that requires access to a specific resource must possess a name or an identifier for it contains dircectory services: Directory service:- 'yellow pages' for the resources in a network Retrieves the set of names that satisfy a given description e.g. X.500, LDAP, MS Active Directory Services (DNS holds some descriptive data, but: the data is very incomplete DNS isn't organised to search it) Discovery service:- a directory service that also: is automatically updated as the network configuration changes meets the needs of clients in spontaneous networks (Section 2.2.3) discovers services required by a client (who may be mobile) within the current scope, for example, to find the most suitable printing service for image files after arriving at a hotel. Examples of discovery services: Jini discovery service, the 'service location protocol', the 'simple service discovery protocol' (part of UPnP), the 'secure discovery service'., name services: names, addresses and other attributes: any process that requires access to a specific resource must possess a name or an identifier for it contains case study of the global name service: an early research project (1985) that developed solutions for the problems of: large name spaces restructuring the name space, name services: names, addresses and other attributes: any process that requires access to a specific resource must possess a name or an identifier for it contains case study of the X.500 directory service: a hierarchically-structured standard directory service designed for world-wide use accommodates resource descriptions in a standard form and their retrieval for any resource (online or offline) never fully deployed, but the standard forms the basis for LDAP, the Lightweight Directory Access Protocol, which is widely used, name services: names, addresses and other attributes: any process that requires access to a specific resource must possess a name or an identifier for it contains name services and the DNS: