Lin, ShihComputing Center, Academia Sinica

Feb 20th 2009

Authoring Tool of AATAuthoring Tool of AATwith DADTwith DADT

A PrototypeA Prototype

Developing LogDeveloping Log

•• Database schema: copied from GettyDatabase schema: copied from Getty•• Data: 32356 records, provided by GettyData: 32356 records, provided by Getty•• Interface: referring to VCS by GettyInterface: referring to VCS by Getty•• Thanks to Getty Research Institute and Dr. Thanks to Getty Research Institute and Dr.

Murtha BacaMurtha Baca• Designer: Andy Liu (Andy Liu (劉智漢劉智漢))•• Developing framework: DADT (Digital Developing framework: DADT (Digital

Archive Database Tool)Archive Database Tool)• Working Days: 10 days

EE--R Model of Three Levels (part)R Model of Three Levels (part)

subject

term

language_relssource_rels_term

TERM_ID

SUBJECT_ID

Subject managementSubject management 11

Level 1 Form

Level 2 Form

Subject managementSubject management 22

Level 2 Form

Level 3 Form

Subject managementSubject management (list page)(list page)

Chinese Terms ManagementChinese Terms Management

DemoDemo• AAT Authoring Tool with DADT

– Prototype– Using Grids

Metadata on the WayMetadata on the Way

• Metadata standards for data exchange and share

• Complication• Over one thousand standards• Selecting and changing standards• Various ways of usage with the same

standard• Increasing requirements for applications

ComplicationComplication• Over one hundred data elements• Deeper and wider hierarchy• Multiple occurrences of parent and leaf

nodes • Various data types• Links among metadata records• Relations among elements, e.g. hierarchy

Databases for MetadataDatabases for Metadata• Native XML Databases

– eXist, Xindice, X-Hive/DB, etc.• RDBMS with XML extension

– Pure RDBMS– Decomposing a hierarchy structure into tables

due to one-to-many relations• Reconstruct hierarchy• Text retrieval

DADT: Management PageDADT: Management Page• Data change

– Mixture of insertion, update and deletion – Entry check: data type, length, null and range– User-defined functions for check and value setting– Foreign key maintenance(data integrity)– Foreign key value setting during insertion– Cascade update and deletion– Link manipulation– Data history– Transaction– Upload files to a file pool or blob fields

Compile Management PageCompile Management Page• Each table is bound with a form.

– The table name is the form name.– The field names of the table are the names of the

input elements in the form.• Multiplex input elements: text, hidden,

password, textarea, select, radio, checkbox and file

• For text and textarea elements, set value ranges and/or warning messages for fields not nullable.