Terminology

App – An App is a generic integration between the Content Recommendations Platform and a third-party system. The app is presented to the user as an integration choice within Optimizely's Integrated Content Marketing dashboard (ICM). The app has its own API credentials with which it can fetch information from the platform about deliveries.
Delivery – Once a user has selected an app and configured it for their own instance of the end channel, this is known as a delivery. In this way, a delivery is an instance of an app with all the configuration needed to actually deliver content to an end channel. The delivery has its own credentials for connecting to the API, which enables the platform to ensure that only content that matches the user’s configuration is delivered to the channel.
Section – A section is a segmentation of the content pool, the definition of which is built using boolean logic on the various properties of the content items. Sections are created and managed through the ICM interface.
Topic – A topic is a semantic entity which is associated with the content item somehow. Topics can either be attributes of the content item, such as its source or author, or entities which have been mentioned in the content and extracted by Content Recommendation's NLP engine. On content views, the source and author are separated from the extracted topic list. To fetch details about a source or author, the topic URL is used.
Goals & Conversions – A goal represents an activity you want to measure. When a user completes a goal this is recorded as a conversion. Example goals could include subscribing to a newsletter, downloading an asset or making a purchase. Goal names are arbitrary strings, and are created automatically if they don’t already exist. An individual can make a conversion against a goal more than once.

Architecture Diagram