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A DAIS server is a real-time system required to deliver data in high rates and volumes. The performance requirements mean
that a typical DAIS server does not use a relational database management system for on-line operation but some kind of real-time
database. The DAIS API efficiently encapsulates such real-time databases from clients.
To be effectively delivering data DAIS must not introduce performance bottlenecks of its own. This has influenced the design
in several ways, listed below.