1071 search results - page 141 / 215 » A Data Model for Moving Objects Supporting Aggregation |
148
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SBBD
2004
15 years 5 months ago
2004
Multi-valued dependencies (MVDs) are an important class of constraints that is fundamental for relational database design. Although modern applications increasingly require the su...
128
Voted
CORR
2007
Springer
15 years 3 months ago
2007
Springer
We conducted a preliminary field study to understand the current state of personal digital archiving in practice. Our aim is to design a service for the long-term storage, preserv...
124
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CP
2001
Springer
15 years 8 months ago
2001
Springer
In interactive graphical applications we often require that objects do not overlap. Such non-overlap constraints can be modelled as disjunctions of arithmetic inequalities. Unfortu...
122
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ER
1994
Springer
15 years 8 months ago
1994
Springer
A logical database schema, e.g. a relational one, is an implementation of a speci cation, e.g. an entity-relationship diagram. Upcoming new data models and the necessity of seamle...
154
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APIN
2000
15 years 3 months ago
2000
Abstract. This paper addresses several issues related to the use of conceptual modeling to support serviceoriented, advanced information systems. It shows how conceptual modeling o...