A characteristic of the actual informatics' context is the interference of the technologies, which assumes that for creating an informatics product, is necessary to use integrate many technologies. This thing is also used for database systems which had integrated, in the past few years, almost...

Data warehouse technology includes a set of concepts and methods that offer the users useful information for decision making. The necessity to build a data warehouse arises from the necessity to improve the quality of information in the organization. The date proceeding from different sources,...

Optimizing the two computing resources of any computing system - time and space - has always been one of the priority objectives of any database. A current and effective solution in this respect is the computer database. Optimizing computer applications by means of data-base machines has been a...

We study platform markets in which the information about users' preferences is dispersed. First, we show how the dispersion of information introduces idiosyncratic uncertainty about participation decisions and how the latter shapes the elasticity of the demands and the equilibrium prices. We...