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The business, or application layer defines services provided to the user. The services can be of several types: Java methods, SOAP, simple services, workflow, etc. A service engine is responsible for invocation, transactions and security.
Apache OFBiz uses a set of open source technologies and standards such as [[Java platform|Java]], [[Java Platform, Enterprise Edition|Java EE]], [[XML]] and [[SOAP]]. Although Apache OFBiz is built around the concepts used by Java EE, many of its concepts are implemented in different ways; either because Apache OFBiz was designed prior to many recent improvements in Java EE or because Apache OFBiz authors
=== Data layer ===
The data layer is responsible for database access, storage and providing a common data interface to the business layer. Data is accessed not in [[object oriented]] fashion but in a [[Relational database|relational]] way. Each [[Entity class|entity]] (represented as a row in the database) is provided to the business layer as a set of generic values. A generic value is not typed, so fields of an entity are accessed by the [[Column (database)|column]] name.
== History ==
The OFBiz project was created by David E. Jones and Andrew Zeneski on April 13, 2001. The project was initially hosted as [[sourceforge:projects/ofbiz/|The Apache Open For Business Project]] on SourceForge and [https://www.openhub.net/p/Apache-OFBiz Open For Business Project (Apache OFBiz)] at Open HUB.
Between September 2003 and May 2006, it was hosted as a java.net project, but the project has been removed from there. it has begun to be widely used around 2003. After incubating since January 31, 2006, it became a Top Level Apache project on December 20, 2006: [http://incubator.apache.org/projects/ofbiz.html Apache OFBiz Incubation Status]
== See also ==
* [[Comparison of shopping cart software]]
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