Telephonic Supplychains Metadata


Meta-data for this project falls into two categories: general purpose meta-data, and specialized keywords focusing on logistics and manufactured. General meta-data includes the source collection (and archival reference), author/publisher, page count, material description of the document, date of production, data of digitization, etc.

The specialized meta-data includes the material identification, the geographic identification (for the geography of production and the geographies referenced), and material processes. The specification of the materials and material processes will be drawn from the Library of Congress headings, with as much degree of precision as appropriate. For example, Cotton (which was used as insulation in early telephone wiring) would be coded as Cotton. but not as Cotton Textiles. In some cases documents use archaic naming conventions for certain materials. In these cases, the accurate Library of Congress heading will be used, but the document will also be tagged with the archaic name (assuming it does not appear as a Library of Congress heading) in order to extend there applicability while providing familiar for historians looking at time-specific materials and processes. These identifications will be largely drawn from the text itself, although in some cases the coder may make some inferences in order to more generally represent information (for example, coding Hematite, and Hematite—Magnetic properties and inferring the coding Iron.)

Geographic information will be identified by using the geocoded result of the most precise location identified, as well as the resultant larger groupings from geocoding services such as those provided by Google. For example, Port Huran would be identified as Port Huran, Michigan, United States. In some cases archaic place names (such as Prussia) are used. These will be retained as meta-data, but will be augmented by the current geographic identification of the same proximity, when possible.


The site will use a segmented search that presents a freeform text field, the ability to narrow based on geography and time. Since these are largely hierarchical representations, this hierarchy will be mirrored in the drop down (showing Port Huron indented under Michigan, which is itself indented under United States). The freeform text box will support a general search language (conjunctive and disjunctive searches, etc.). Time ranges will be segmented by decade and year. While all meta-data will be searchable (and prioritized over free-form text searching) through this interface, some of this information (materials and material processes) will only be available through browse (as described previously in the site index).

Added Value

The most significant added value of the site will be in the geographic representation of the documents through a map-based navigation interface. This map interface will use a visual language to display all of the geographic information related to the document collection. More information is available in the description of the site index.

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