DS Default Plans

There are two kinds of DS default plans as below:

• System Plans
• Common UI Plans

If the foreground app has a self-defined plan conflicting with a DS default plan, the DS returns the plan defined by the foreground app. On the other hand, assuming the DS only matches a DS default plan, it will return the DS default one. (domain 1300)

1. System Plans

A system plan is a DS default plan that has system behavior on devices, such as the end plan, the go-back plan. For example, supposing you don't set any input context of a system plan and the plan is listening to the intent sentence "end", the system behavior of the plan is touching the home button in the android system, if the user says "end".

Listed below are our predefined system plans.

2. Common UI Plans

In contrast to a system plan, a common UI plan is a DS default plan not having system behavior. Common UI plans are plans that usually appear in every activity. 

On Zenbo, it is quite common for multiple apps to be running at the same time, although only one of them is supposed to be in the foreground interacting with the user while the others are lurking behind it. To avoid conflict between apps, our system doesn't allow UI plans of background apps to be triggered. Let's give you a scenario when conflicts between apps might happen. Say we have two apps running simultaneously, one in the foreground and the other background. And in our system, there is a common UI plan called base.plan.common.U_page_previousPage that can go to the previous page. Supposing a user says, "previous page" (an intent sentence that can trigger base.plan.common.U_page_previousPage), both apps would go back to the previous page if this UI plan of the background app could be triggered.  We don't want this to happen, do we? Hence, this type of plans only allows the foreground app to trigger them. 

Listed below are our predefined common UI plans.