Abstract: A method for of managing a Global Control Group (GCG) for a communication event. The method includes transforming one or more user identifiers stored in a database to generate respective one or more bucket identifiers. The one or more user identifiers correspond to one or more users. A predetermined number of bucket identifiers are selected randomly. The selected bucket identifier is a member of the GCG. Further, a user identifier is received from one or more user identifiers in a run time environment. A respective bucket identifier corresponding to the received user identifier is generated in the run time environment. Further, presence of the generated bucket identifier within the selected bucket identifiers of the GCG is determined and the communication event based on the determination is restricted.

Abstract: A method for secure transmission of data is described. The method comprises receiving a token corresponding to user data stored in a data storage device. Further, the PII data corresponding to the token is retrieved via an Application Programming Interface (API). The retrieved PII data is processed at a runtime environment for sending information to the users over one or more messages. The PII data is deleted from the runtime environment. Further, delivery data corresponding to delivered one or more messages is mapped with the token using a unique message ID.

Abstract: A method for providing one or more customized experience to a user profile associated with an application is disclosed. The method comprises querying a key-value pair store for retrieving a key-value pair associated with the user profile. The retrieved key-value pair is loaded into a first memory. Further, one or more segment definitions for the one or more segments are received from a second memory. The one or more segment definitions are based on at least one of the user profile, user behaviour, user transaction on the application, user interaction with the application, and user subscription. Further, the one or more segment definitions and the one or more user events are evaluated in the first memory. The customized experience is provided to the user profile within sub-second latency and the customized experience is updated based on change in the one or more user events associated with the user profile.