Representation of Events and Rules in Gamification Systems

The paper proposes a domain-agnostic description of user-generated events which conveys their key properties of relevance for gamification (i.a. context, actor, action, object, location and time) and a notation, based on this description, which allows to effectively specify gamification rules depending only on the content of the generated stream of events. This way, no hooks have to be inserted in the gamified system other than reporting of basic events happening within it. The proposed notation allows to design gamification rules that can be applied to different gamified systems, only provided they can generate event reports using the proposed representation (and belong to the same domain so that the rules remain relevant). It also simplifies building of rule-processing systems that serve various gamified systems. It is especially useful for complex gamification systems with multiple sources of rules and multiple points of their processing.