j661提供了一个通用的CDS（或ARINC661服务器），以方便对ARINC661标准的概念和体系结构的认识了解，并促进了ARINC661规范和项目之间的文物之间的再使用。 CDS的架构的设计目的是以便于定义服务器的性能，并能够易于修改或扩展。这是通过在运行模块式插件体系结构而得到实现，并且在不改变服务器核心的情况下允许定制运行时间。
j661 0.50.1 Beta 2此版本修复了A661_GP_POLYLINE部件的原先遗留的问题，还简化了用于在客户端和编辑器来编辑Widget的数组值的GUI组件。同时还修复了在服务器中使用的外部设备问题。
Version 0.50.1 Beta 2 详细更新日志：
－Fix all the sibling widgets following a A661_NUMERIC_READOUT with an angle different from 0 ha">ving incorrectly the same angle.
－Modify the grammar of the DataProvider XML configuration files to add the optional widgetName attribute in the input element. The previous DataProvider XML configuration files are still readable by the Embedded Client application.
－The XML and binary Definition Files serialized by the Editor now export the value of the supplement defined in the Editor.
－Further generification in the code.
－The ulong type is now taken into account directly as a ulong type defined in the ARINC XML formal definition. previously, ulong types had to be defined as long in this file.
－Fix a problem in previous Beta with parsing attributes with enumerations in the Editor, Client, or Server, and add corresponding Unit Test.
－Add an annotation for Server widgets allowing to force the update of the widget (This makes it possible to have attributes whose value is defined by a delta, and are not defined as absolute values, for example for a cursor position relative to the previous one).
－Fix some problems with the devices: the deltaX and deltaY position for cursors were not updated, and the devices SuperLayer was not sending any events back to the Client.
－Show the character values sent by the Server in the Server logger area.
－Simplify the user interface and fix the generic array panel for the Client and the Server, using the same panel as the one used for the Maps plugin. This fix some problems which could arise when modifying the array of coordinates for the A661_GP_POLYLINE widget in the Client and the Editor.
－Rename Server utilities methods for sizing to make their usage more understandable.
－Add a demo for using devices.
－Allow to execute the Scripting demos directly into the IDE.
－Allow the Client to directly load the devices defined in a Window configuration.
下载地址：http://sourceforge.net/projects/j661/files/Version%200.50.1/