ETag


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ETag

(Entity Tag) An optional feature of the HTTP protocol that speeds up requests by ensuring that the data stored in a Web cache are up-to-date. The ETag is an identifier assigned to a data resource in a server, and if that resource is ever updated at the server, the ETag is changed.

Whenever a resource is requested (via its URL), the data and ETag are retrieved and stored in the Web cache, and the ETag is sent along with subsequent requests. If the ETag at the server has not changed, a "Not Modified" message is returned, and the cached data are used. See Web cache and browser cache.
References in periodicals archive ?
The eTag technology may have applications in clinical medicine as well as discovery research and drug development.
The eTag reporters are identified by capillary electrophoresis using a capillary-based DNA sequencer.
Automated pool balancing, direct and indirect bookouts, and simplified access to eTag data
Other improvements include improvements in caching management with the support of ETag, upgrade of the used libraries and a few bug fixes.
Future sales will come from sales of the company's eTag assays used for gene and protein expression analysis.
Both Etag and the Assembly's Education Committee were insistent that Elwa needed a shadowing period before assuming its responsibilities, and that operational implementation should be staggered.
In addition, tests as per EOTA guidelines can be performed: during a four-week test phase, the wall is subjected to 80 hygrothermal and five frost cycles, which involve temperatures ranging from -20 to +70 AC, variable atmospheric humidity and spraying with water, followed by a detailed inspection (as per test regulation ETAG 004).
ACLARA Biosciences is a small microfluids company that produces the eTag assay system for integrated sample processing and analysis.
com LEWIS, Caroline Elizabeth Principal, Neath Port Talbot College; member of ELWa regional council; previously member of Accac, FEFCW, and Etag.
The provision and implementation of shields block within the meaning of the EU Directive ETAG 027, are not covered by these markets.
22 and ETAG 004 test programmes are aimed at renders, the rigs can also assess other materials and finishes such as cement particle boards, glass reinforced plastic (GRP), MgO boards and cladding.
ACLARA BioSciences introduced its eTag Assay System for the high-throughput, multiplex analysis of genes, proteins and cell-based antigens .