Microsoft's Cortana was a general purpose productivity assistant, that has been deprecated as a standalone product.
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Oracle Digital Assistant
Score 7.9 out of 10
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Oracle Digital Assistant delivers an AI platform to create conversational experiences for business applications through text, chat, and voice interfaces.
As a provider of software applications to the legal market there is not a huge amount that the Cortana Intelligence suite can be utilised for though at the speed that new features are being added I suspect that will change very quickly. However the current functionality is clearly really well suited for e-commerce companies or vertical markets where process is very prescriptive and linear.
As mentioned in pros and cons, it depends on the use cases. Most of the normal chatbot use cases can be handled by ODA. If you want to build a chatbot with menu style or conversation style (it is not straight forward but it can be done), ODA can be perfect. If use cases are to also include AI with emotional intelligence to make conversational more interactive and also be able to detect through AI engine automatically what a person would like to do or perform or ask, then ODA may not fit for it. If you also are looking for virtual agents through tighter IVR integration then ODA may not be right. There are a few limitations around the number of words in the text to voice feature.
IBM Watson Assistant has been early into this market and has improved a lot over time compared to Azure AI Cortana. More documentation related to the services. But Ease of integration Azure AI ranks over IBM Watson Assistant. And again in terms of services offered under the ecosystem, Azure AI precedes IBM Watson Assitant.
I selected Oracle Digital Assistant against all other digital assistant platforms as this platform works like a charm with any Oracle application. It integrates well with Oracle Integration Cloud. The new beta version has an inbuilt conversation builder which can be used to build conversation without the YAML code.