请求

由于语言设计并非我们的专长，我们希望得到比我们更有经验者的评论。

                           System form:
                             C -> N
                           +----------+
                           | one rule |
                           | for each |
                           | legal    |
                           | command  |
                   +-------|- - - - - |<----+
                   |       +----------+     |
            Binary |                        | EBCDIC
                   |                        |
   +----------+    |                        |      +----------+
   |          |<---+                        +------|          |
   | Network  |                                    | Consoles |
   |          |----+                        +----->|          |
   +----------+    |                        |      +----------+
                   | Binary          EBCDIC |
                   |                        |
                   |                        |
                   |       System form:     |
                   |          N -> C        |
                   |       +----------+     |
                   +------>|- - - - - |-----+
                           | one rule |
                           | for each |
                           | legal    |
                           | response |
                           +----------+

图 1: 用于协议管理的系统形式的应用