However, this structured information
must be accompanied by the unstructured supporting artifacts. For example, a repository
built to house XML artifacts would need the structured definitions of the vocabulary and
naming conventions, the design documents, use cases, and associated assets. Solutions in the
Web application space that support the SDLC, governance, and architecture must integrate
the structured and unstructured information held within the environment.
Impact Analysis
Impact analysis is the process of identifying or estimating the impact of a change in the
environment. Impact information can be used when planning changes, making changes, or
tracking the effect of changes implanted within the environment (Apiwattanapong, Harrold,
& Orso, 2003). Traditionally, impact analysis was done at the data layer by the use
of a field-to-field mapping technology known as ETL. Within the data warehouse environment,
data must be mapped from external sources and loaded into the data warehouse.
Traditionally, an ETL tool was required to extract data from a source system, transform
the information into a warehouse format, and then load the data into the target tables; this
means that the processing work was done outside of the database system itself.
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