IVR式对话系统/工作流程/菜单
我需要构建一个类似于呼叫中心中使用的 IVR 的对话系统。我的系统不是基于电话的，但对话框是相似的。就像
System: "Main menu: Enter [1] for menu1, [2] for menu2"
User: [1]
System: "menu1: enter [1] for apples, [2] for oranges, [3] for main menu"
User: [7]
System: "What??"
System: "menu1: enter [1] for apples, [2] for oranges, [3] for main menu"
User: [2]
... and so on
我想要对所有可能的选项有一个很好的声明性描述，以及在用户输入的指导下运行该树的好方法。
已经考虑过：ANTLR生成的词法分析器/解析器（似乎有点矫枉过正），基于SCXML的状态机（似乎只能声明转换，其余的需要编码）
I need to build a dialog system similar to IVR used in call centers. My system is not phone-based, but the dialog is similar. Something like
System: "Main menu: Enter [1] for menu1, [2] for menu2"
User: [1]
System: "menu1: enter [1] for apples, [2] for oranges, [3] for main menu"
User: [7]
System: "What??"
System: "menu1: enter [1] for apples, [2] for oranges, [3] for main menu"
User: [2]
... and so on
I want to have a nice declarative description of all the possible options and a nice way to run through that tree, guided by user input.
Already considered: ANTLR-generated lexer/parser (seems to be an overkill), SCXML-based state machine (seems like only transitions can be declared, the rest needs to be coded)
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我以前从未见过 SCXML，但在浏览了项目页面和示例后，我觉得它拥有您需要的一切。您的 IVR 可以建模为状态图。进入状态要么呈现下一个选择，要么启动一个活动（呈现下一个菜单级别也是一个活动）。
实现“错误的用户输入”状态可能很棘手（或者 SCXML 已经有针对此常见任务的解决方案）。
您可以发明一个小型 DSL 来简化此状态机的编辑。用该 DSL 编写的文档将被转换为驱动 IVR 系统的 SCXML 文件。
（感谢 SCXML 指针！）
I've never seen SCXML before, but after a short glimpse on the project pages and the examples, it looks to me like it has everything you need. Your IVR can be modeled as a state diagram. Entering a state either presents the next choices or starts an activity (while presenting the next menu level is an activity too).
It might be tricky to implement a 'wrong user input' state (or SCXML already has a solution for this common task).
You could invent a small DSL to simplify editing this statemachine. Documents written in this DSL would be translated to SCXML files that would drive the IVR system.
(thanks for the SCXML pointer!)