基于领域的快速协同开发平台的研究与实践

在全面分析研究企业信息系统和大量实践的基础上,为解决传统企业信息系统开发存在的问题,提出并设计了一个企业级的基于领域的快速协同开发平台。通过对信息系统进行领域分析,得出了平台的总体架构,该平台采用了业务流程管理、模型驱动架构、面向服务架构等技术思想进行实现,并将这些思想有效结合,使其协同工作。通过具体的应用,验证了平台能有效地提高软件复用率,极大地缩短企业信息系统的开发周期,减少信息系统的成本支出。

pessimistic predicate/transform model for long running business processes

Many business processes in enterprise applications are both long running and transactional in nature. However, no current transaction model can provide full transaction support for such long running business processes. This paper proposes a new transaction model, the pessimistic predicate/transform (PP/T) model, which can provide full transaction support for long running business processes. A framework was proposed on the enterprise JavaBeans platform to implement the PP/T model. The framework enables application developers to focus on the business logic, with the underlying platform providing the required transactional semantics. The development and maintenance effort are therefore greatly reduced. Simulations show that the model has a sound concurrency management ability for long running business processes.