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Re: [xsl] What is the relationship between transforming, mapping, and filtering?

2021-08-31 13:56:37
This punter's US$.02:

Transformation: the generic term for the overall process.

Mapping: the creation of output that corresponds directly to some input on
a fine-grained level.

Filtering: choosing what information to map (or not).

Enriching: adding additional information to that output that does not have
the input as origin, perhaps from a separate data source or some
business/logical rules, possibly constructed by the mapping process itself.



On Tue, Aug 31, 2021, 19:58 Roger L Costello costello(_at_)mitre(_dot_)org <
xsl-list-service(_at_)lists(_dot_)mulberrytech(_dot_)com> wrote:

Hi Folks,

How do you define those terms? Are they synonymous? Is one a subset of
another?

By "mapping" I mean populating XML instances of one data standard with
data from another data standard. For example, I am currently mapping a
military air navigation data standard to a civilian air navigation data
standard.

By "filtering" I mean performing actions on data such as redacting,
fuzzing, and zeroing. One could think of these actions as mapping: if I
fuzz a lat/long location, I am essentially mapping the location to another
location.

By "transforming" I mean all the kinds of things you can do with XSLT.

Is filtering a subset of mapping? Is mapping a subset of transforming?

/Roger



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