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Design analysis [5] should establish the scalability of an ETL system across the lifetime of its usage – including understanding the volumes of data that must be processed within service level agreements. The time available to extract from source systems may change, which may mean the same amount of data may have to be processed in less time.
The transformation phase of a spatial ETL process allows a variety of functions; some of these are similar to standard ETL, but some are unique to spatial data. [3] Spatial data commonly consists of a geographic element and related attribute data; therefore spatial ETL transformations are often described as being either geometric transformations – transformation of the geographic element ...
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Extract, load, transform (ELT) is an alternative to extract, transform, load (ETL) used with data lake implementations. In contrast to ETL, in ELT models the data is not transformed on entry to the data lake, but stored in its original raw format.
Educational Evaluation and Policy Analysis is a peer-reviewed academic journal covering all aspects of educational policy analysis. It was established in 1979 and is published by SAGE Publications on behalf of the American Educational Research Association .
Invention begins. Manufacturing science and/or concept described in application context. Identification of material and process approaches are limited to paper studies and analysis. Initial manufacturing feasibility and issues are emerging. 3: Manufacturing proof of concept developed: Conduct analytical or laboratory experiments to validate ...
While the analysis of educational data is not itself a new practice, recent advances in educational technology, including the increase in computing power and the ability to log fine-grained data about students' use of a computer-based learning environment, have led to an increased interest in developing techniques for analyzing the large amounts of data generated in educational settings.
PDF (Portable Document Format): A cross-platform printing and distribution format which permits content searches, the addition of metadata, and the embedding of electronic signatures. When generated from electronic data, PDFs are resolution-independent and allow crisp reproduction at any scale.