1. A method comprising: a) providing a software that comprises: a data collection layer at which data sets generated at different platforms are retrieved, processed and loaded to a database, a data storage layer in which the data sets from the data collection layer are stored in a Big Data database, a data modeling layer having a plurality of predefined computational models for different business problems, wherein each computational model of the plurality of predefined computational models is configured to use the data sets stored in the Big Data database to provide one or more answers to a different type of a user query specific to a business problem of the different business problems, and a visualization layer for interacting with a user, wherein the different types of user queries specific to the different business problems include: accelerate data usage and revenues, third-party data monetization, optimized management of price plans, improving customer preservation, optimizing pre-paid to post-paid migration, and stimulating roaming usage; b) upon inputting a user query to the software, using one of the computational models of the plurality of predefined computational models for presenting to a user a plurality of pre-determined series of queries and results thereof, thereby reflecting to the user a multi-step process selected by the software for retrieving the one or more answers to the user query.