| Schema or Table | Usage |
| ping process Schema | The Ping application sends the ping message defined by this schema |
| ping reply Schema | The response pong is defined by this schema. |
| Ping Display | The schema defines the inbox agent for feeding data to inbox table on sending as well as recieving the message. |
| Inbox table | The applications uses this table sending a request and reciveing a pong.The partial information is feeded here by the Inbox Agent when the message is send and it is updated again by the Inbox Agent when the response comes.This simplifies the GUI built on top of asynchronous messaging a lot. |