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Chatbot dialog design - a best practice proposal
While working on a new chatbot I had to come up with good examples to start and led a conversation with the chatbot. For this I analyzed other bots, tracked the steps it takes to achieve a specific goal and kept notes on repeating patterns. In result me and my team came up with a few basic principles to design dialogs in conversational bots.
Assuming you already got in touch with common chatbot platform here are the principles:
- A chatbot should understand and appropriately react to keywords at any point in the dialog, such as “hi”, “cancel”, “menu” or “start over”.
- A chatbot reaction should contain a description and alternative options. These option should either provide a help to finish the current dialog or move within the whole conversation forward and backward.
- Hints on inputs should be offered.
- Carousels should only display results, not menu options.
- New users should get a general introduction on what the bot is about (once).
- The number of steps to complete a task should be kept as small as possible.
- The possibility to abort a dialog should be offered at any point of the dialog.
- Rich text elements, such as cards, should be used carefully. They use a lot of space and might move beyond the viewport.
- Experienced users should have the option to reach their goal very quickly.
- Give suggestions or inspirations for undecided users.
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