Abstract: A method is provided for enabling a software user to obtain answers based on information retrieved from Big Data systems to a query defined by a user. The method comprises: a) providing a software that comprises computational models, wherein each of the computational models is configured to provide answers to a different type of a user query, and at least one of the computational models is further configured to retrieve information from one or more Big Data systems; b) upon inputting the user query to the software, retrieving information from Big Data systems and presenting to the user a pre-determined series of queries and the results thereof, thereby reflecting to the user a multi-step process selected by the software for retrieving the answers to the query defined, based on information retrieved from the Big Data systems.

Abstract: A method and a system are described for providing operational business service verification in a telecommunication network. The method comprises the steps of: (i) receiving information which relates to transactions from a plurality of information sources, wherein the transactions are associated with one or more pre-defined applications; (ii) based upon the information received, determining whether that at least one pre-defined transaction criterion has been met; and (iii) if the at least one pre-defined transaction criterion has been met, providing verification of the legitimacy of the respective transaction that relate to that pre-defined application.