NDLI: Rules-Driven of Dynamic Resources Directory for Land Resources Datacenter

Content Provider	IEEE Xplore Digital Library
Author	Ji Wei Wu Xincai
Copyright Year	2009
Abstract	The spatial resources include data resources, function resources and authority resources. In order to realize effective integration and management of the spatial resources under the distributed heterogeneous environment, the land resources datacenter has provided the rules-driven of dynamic directory. The composition operators were constructed by relation algebra operations such as selection, projection and join which were compounded effecting on data (function) units; these formally described and quantitatively optimized the expressions of dynamic directory in terms of mathematics. Based on analyzing access control operation hierarchy, authority-function binding model was abstracted by authority operator to simplify the complexity of authority scheduling and to solve the geographic entities granularity based authority control and cross-region different authorization in land business. Finally, resources directory can provide the configurable and extensible on-demand service and achieve the isomorphism of heterogeneous spatial resources in the scheduling management level.
Starting Page	228
Ending Page	231
File Size	398052
Page Count	4
File Format	PDF
ISBN	9780769536828
DOI	10.1109/ESIAT.2009.190
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2009-07-04
Publisher Place	China
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Access control Job shop scheduling composition operator Geology Relational databases rule-driven Data engineering Mathematics datacenter Environmental management dynamic directory Authorization Algebra relation algebra Resource management
Content Type	Text
Resource Type	Article

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