Informatics and Temporality:
Time and temporal relations are crucial aspects of
information processing in two ways. The synchronization of activity within any
information processing system poses complex problems for coordinating the local
time of an event within a circuit and a global clock time for a system. This
aspect is not relevant to our project in its current phase, though clearly such
concerns are germane to the larger issues of information design that undergird
our research. The second aspect addresses the history of data and the history
represented by data within an information processing environment. This aspect is
directly relevant to our project and a glossary of terms has been excerpted to
serve as a standard vocabulary within our research project and for the seminar.
EXCERPT: C.S.Jensen at al., "Glossary
for Temporal Database Concepts"
- Valid Time (moment at which the fact is true within the modelled reality)
- Transaction Time (moment at which the fact is stored in the database)
- Query Time (moment at which a database is queried)
- User-defined Time (birthday, hiring date)
- Valid Time Relation
- Transaction Time Relation
- Snapshot Relation
- Bitemporal relation
- Transaction time slice operator
- Temporal Element
- Chronon: smallest unit in any time system
- Time stamp
- Temporal homogeneity
- Span - directed duration
- Temporal expression - syntactic expression used in a query
- C.S. Jensen et.al., "Glossary
of Temporal Database Concepts"
- Qing Zhou and Richard Fikes, "A
Reusable Time Ontology"
- Fabio Schreiber, "Is
Time a Real Time?"
Focus, and Goals | Conceptual
and Representational Issues | Informatics and
Temporality | Visualizations
Concepts | Geo-Spatial
Temporality | Narrative
Theory | Relativity
for Representation | Bibliography