In Part I of this article (XML-J, Vol. 4, issue 6), we introduced the
enterprise information integration (EII) problem and explained how the XML
query language XQuery and related technologies - specifically XML, XML
Schema, and Web services - are central to enabling this age-old problem to be
successfully addressed at last.
We provided a technical overview of the XQuery language and presented a
simple "single view of Customer" example to illustrate XQuery's role in the
EII domain. The example was based on an electronics retailer that wanted to
share customer information across three portals - portals for customer
self-service, credit approval, and product service. The information to be
integrated resided in a variety of back-end information sources, including
two relational database management systems, an SAP system, and a Web service.
In this article, our XQuery/EI... (more)
Since the dawn of the database era more than three decades ago, enterprises
have been amassing an ever-increasing volume of information - both current
and historical - about their operations. For the past two of those three
decades, the database world has struggled with the problem of somehow
integrating information that natively resides in multiple database systems or
other information sources (Landers and Rosenberg).
The IT world knows this problem today as the enterprise information
integration (EII) problem: enterprise applications need to be able to easily
access and combin... (more)
Providing a first-class online user experience can require access to multiple
sources of data.
The required data often resides in multiple databases, packaged applications,
and other information silos. Accessing and relating such data is a key
challenge facing modern enterprises. The IT world knows this problem as the
enterprise information integration (EII) problem: enterprise applications
need to be able to easily access and combine information about a given
business entity from a distributed and highly varied collection of
information sources. To meet this need, BEA offers Li... (more)
Modern enterprises are drowning in a sea of information. Despite owning an
ever-increasing volume of information, most enterprises cannot exploit it to
even a fraction of its full potential.
This is because the information is strewn across many systems with diverse
data formats and interfaces - systems that are largely unaware of one another
and of the relationships their content has with information contained
elsewhere. Therein lies the Enterprise Information Integration (EII) problem:
enterprises need the ability to easily access information about a given
business entity, such... (more)