Download Enterprise Application Integration by David S. Linthicum PDF

By David S. Linthicum

"Enterprise software Integration" presents a fascinating creation to the real subject of EAI (Enterprise program Integration).

EAI performs a key position in lots of companies throughout many eventualities (for instance, enforcing an company program and/or integrating the applied sciences of an bought company), so this ebook covers an incredible topic.

This e-book as a complete is orientated in the direction of technologically-savvy contributors, yet a number of sections of the e-book, corresponding to the assurance of "what is EAI" may still attract, and be of significant worth to, a large viewers.

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Enterprise Application Integration

"Enterprise software Integration" offers an enticing creation to the $64000 subject of EAI (Enterprise program Integration).

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Where SAP uses a proprietary application server to process its business logic, PeopleSoft leverages the Tuxedo TP monitor from BEA. What does architecture have to do with interfaces? The long and short answer is, everything. When invoking application interfaces, it is extremely helpful to understand which portions of the packaged applications are being accessed. Interfaces allow access to the user interface and application as well as to the data (many allow access only to one or two tiers). Many packaged applications allow direct access to the database with the caveat, based on the fact that the business logic controls the database integrity, that the user do so only by using a business logic or application layer.

Still, they have exerted their influence. Most relational vendors include object-oriented capabilities within their existing relational database technology—"universal databases," as we've noted previously. Perhaps more to the point, growing interest in the Web is renewing interest in the object-oriented model for content and Web-aware data storage. It is still very much a "relational world," but many OODBMSs are making inroads into organizations that find the object-oriented database model a better fit for certain applications, including persistent XML.

8). These interfaces are not unlike traditional data-level access tools; however, the ERP vendor provides them as a verified mechanism to access the ERP data. Of course, each vendor varies greatly in features provided. 8 Accessing the data services layer 48 As we have noted, use of this interface is generally for extraction only. However, some data service interfaces offer database update services as well, either with or without integrity checks. While most application interfaces provide data services, the EAI architect has the option of going directly to the database by utilizing database-oriented middleware.

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