MetadataAntique Furniture for Sale in an Online Auction

Jenny Olivera, Christine Sibley & Terri Sanne

• Articles & Antique Books: many articles about consumer price behavior− Evidence of the effect of trust building technology in

electronic markets; price premiums and buyer behavior

− Three paths to disposition: The movement of meaningful possessions to strangers

− Art & Architecture Thesaurus − Online auctions: User experience insights from eBay − Schroeder’s antique price guide (21st ed.) − Kovels antiques & collectibles: Price list 2001.(33rd

ed.)− American antique furniture 1640-1840 − From thesaurus to ontology − Schroeder’s antiques price guide − Major furniture period or style. Antique Furniture

Guide. − The Antiques Book

Requirements Analysis

Requirements Analysis

• Interview: Kären Betaque, antique furniture searcher−Construction quality−Maintenance history−Special features (that make the item rare)

• Websites: auction houses, online auctions−Christies, Sotheby’s, eBay

• Existing Metadata:−AAT, Dublin Core

Metadata

Metadata

Metadata

Metadata

Controlled Vocabulary - StyleAmerican Federal Period

Elizabethan Pilgrim

Art Deco Empire Queen Anne

Art Moderne French Country Regence

Art Nouveau Gothic Regency

Arts & Crafts Hepplewhite Renaissance

Baroque Jacobean Restoration

Biedermeier Jugendstil Rococo

Chippendale Louis Philippe Sheraton

Commonwealth Louis XIII Victorian

Cromwellian Louis XV William & Mary

Directoire Louis XVI Unknown

Early Colonial Louis XVI

Controlled Vocabulary - CultureAmerican Indonesian Russian

Chinese India Slovak

English Japanese Spanish

European Korean Swedish

French Norwegian Unknown

Italian Romanian

Controlled Vocabulary - MaterialsGlass Metal—

PewterUpholstery—Tapestry

Wood—Cherry

Wood—Pine

Glass—Leaded

Metal—Silver Upholstery—Velvet

Wood—Chestnut

Wood—Pine—Yellow

Glass—Painted

Metal—Steel Upholstery—Wool

Wood—Ebony Wood—Poplar

Glass—Stained

Metal—Tin Wood—Apple Wood—Elm Wood—Poplar—Tulip

Ivory Rush Wood—Ash Wood—Hickory

Wood—Rosewood

Marble Upholstery—Damask

Wood—Bamboo

Wood—Holly Wood—Satinwood

Metal—Brass Upholstery—Horsehair

Wood—Beech Wood—Mahogany

Wood—Softwood

Metal—Gilt Upholstery—Leather

Wood—Birch Wood—Maple Wood—Walnut

Metal—Gold Upholstery—Needlepoint

Wood—Burl Wood—Oak Wood—Pine

Metal—Iron Upholstery—Silk

Wood—Cedar Wood—Olive

Controlled Vocabulary – Furniture Type

Armoires Consoles Dining tables

Ottomans

Barstools Couches Dressers Shelves

Beds Credenzas Dressing tables

Sideboards

Bedroom sets

Cribs End tables Sofas

Benches Curios Hall stands

Sofa tables

Bookcases China cabinets

Hall trees Stools

Buffets Coffee tables

Headboards

Tables

Cabinets Desks Hutches Trunks

Chairs Dining chairs

Living room sets

Vanities

Chests Dining sets

Nightstands

Wardrobes

Controlled Vocabulary – Status & Age

Status Age

Sold Pre 1600

Bidding open 1600 - 1650

Bidding pending 1651 - 1700

Auction ended, item not sold

1701 - 1750

1751 - 1800

1801 - 1850

1851 - 1900

1901 - 1950

Data Entry for Antique Furniture(Furniture Type)

Data Entry for Antique Furniture(Age)

Data Entry for Antique Furniture(Culture)

Data Entry for Antique Furniture(Style)

Data Entry for Antique Furniture(Material)

Data Entry for Antique Furniture(Status)

Database Records

Database Records

Database Records

Database Records

Group Discussion

• Deciding whether a field required controlled vocabulary or natural language

• Debating unambiguous terms (origin or region vs. culture)

• Determining how to handle dimensions for multiple pieces of furniture

• Discussing how to handle age of an item or what era it was from

Group Discussion• Debating what to do with items for

which some of the attributes are not known (such as style, culture, etc.)

• Determining how to handle multiple items as one item (addressed by adding set as a furniture type)

• Discussing what our interviewee told us and decided to add special features and maintenance history

• Discussing what we learned from the articles and decided to add dealer ranking

Questions & Comments