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IntentsSlotsConversationsUtterances

Key definitions

This topic provides key definitions that will help you interpret your bot analytics. These definitions are related to the performance of your bot in four contexts: Intents, Slots, Conversations, and Utterances. The following fields are relevant to many of the performance metrics:

Intents

Amazon Lex V2 categorizes intents in the following ways:

  • Success – The bot successfully fulfilled the intent. One of the following situations is true:

    • The intent state is ReadyForFulfillment and the type of dialogAction is Close.

    • The intent state is Fulfilled and the type of dialogAction is Close.

  • Failed – The bot failed to fulfill the intent. The intent state. One of the following situations is true:

    • The intent state is Failed and the type of dialogAction is Close (for example, the user declined the confirmation prompt).

    • The bot switches to the AMAZON.FallbackIntent before the intent is completed.

  • Switched – The bot recognizes a different intent and switches to that intent instead, before the original intent is categorized as a success or failed.

  • Dropped – The customer doesn't respond before the intent is categorized as a success or failed.

Slots

Amazon Lex V2 categorizes slots in the following ways:

  • Success – The bot filled the slot and successfully transitioned to another slot or the confirmation step.

  • Failed – The bot wasn't able to fill the slot, even after reaching the maximum number of retries.

  • Dropped – The customer doesn't respond or switches to another intent before the slot is categorized as a success or failed.

Conversations

When a customer makes a runtime call to Amazon Lex V2, they provide a sessionId and Amazon Lex V2 generates an originatingRequestId. If the customer doesn't respond within the Session timeout (idleSessionTTLInSeconds) that you set for the bot, the session expires. If a customer returns to the session by using the same sessionId, Amazon Lex V2 generates a new originatingRequestId.

For analytics, a conversation is a unique combination of a sessionId and an originatingRequestId. Amazon Lex V2 categorizes conversations in the following ways:

  • Success – The final intent in the conversation is categorized as a success.

  • Failed – The final intent in the conversation is failed. The conversation is also failed if Amazon Lex V2 defaults to the AMAZON.FallbackIntent.

  • Dropped – The customer doesn't respond before the conversation is categorized as a success or failed.

Utterances

Amazon Lex V2 categorizes utterances in the following ways:

  • Detected – Amazon Lex V2 recognizes the utterance as an attempt to invoke an intent configured for a bot.

  • Missed – Amazon Lex V2 doesn't recognize the utterance.