當一個約束被定義時，用户模型化的原型聯合和元模型擴展的交集被用於OCL上下文。
This is an analysis and generalization on hanging type, wire, lead elevation, structure rise, arm stay, phase splitting pattern, OCL post foundation of Qin-Shen Passenger Dedicated line OCL.
A major advantage of OCL over an XQuery is its ability to navigate through the data model and follow all the associations of an object model.
A proven approach to add precision to a model is through the use of constraints and OCL.
OCL查詢語言使開發人員從基礎XML數據模型解脱出來，允許他們將重點放在其應用程序的對象模型上(這也是他們非常熟悉的部分)。
The OCL queries free developers from the burden of the underlying XML data model and allow them to concentrate on the object model of their application, which they usually know very well.
Using constraints, and in particular OCL, can benefit you as you work toward these goals.
The union of the user-modeled stereotype and the intersection of its meta-model extensions is used as the OCL context when the constraint is defined.
This tool also provides all nine diagram types, diagram export, XML Metadata Interchange (XMI) integration, and Object Constraint Language (OCL) support.
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