Abstract:
In central databases the consistency of data is normally
implemented by using the ACID (Atomicity, Consistency,
Isolation and Durability) properties of a DBMS (Data
Base Management System). In practice, it is not possible
to implement the ACID properties if heterogeneous or
distributed databases are involved and the availability of
data also has to be optimized. The objective of relaxed
ACID properties across different database systems is
that the users can trust the data they use even if the
databases involved are temporarily inconsistent.
Therefore, we will in this paper use relaxed ACID
properties across different database systems or ERP
(Enterprise Resource Planning) modules in order to
make it possible to select the best set of modules even
though the combination of modules may be
heterogeneous. That is, it should be possible to select the
best of breed software for the different business functions
of the company. The objective of this paper is to give an
overview of both the benefits and costs of using
application/database integration with relaxed ACID
properties.
