Security ensure the security of the information published, through appropriate access control mechanisms.
Privacy guarantee the privacy of the information published, in order to prevent one of the actors from becoming aware of sensitive information for other organizations, for example through inferential attacks. In particular, it is necessary to find the right balance between the usefulness of data collected shared, with a view to carrying out analytical investigations, and the level of privacy required.
Properties of data collected when i data collected are published, an organization risks losing control of them. This problem is strongly influenced by the presence of a third party, and by the degree of trust that the organizations involved
they put you back. In some cases, in fact, this third party body can take charge of managing the data collected shared.
To solve these problems, IT must first identify the architectures, platforms and technologies needed to integrate and exchange information. Secondly, it must define an adequate development model, especially as regards the requirements gathering phase. In the following we will analyze in detail how it is possible to satisfy the requirements indicated in the specific case of the development of a data warehousing system.
A DW is usually used for quantitative analysis of events of interest to an organization's business, such as sales, purchases or inventory levels. Consequently, it deals with information of a numerical type, such as product quantities or prices. To do this, the DW organizes the information in such a way that it can be used efficiently to carry out analyzes for decision support purposes. THE data collected they are extracted from various sources within the organization, and integrated using one of the integration techniques, in order to obtain a unified view. During this phase they can also undergo a cleaning process, at the end of which they are integrated into the DW.
The DW is used by users at different levels. The executive bodies use it for complex analyzes of the various aspects of the business, in order to support their decisions.
Other users can simply use it for generating periodic reports, which can sometimes also be made public outside the organization.
In a DW developed in a coopetitive environment the single sources of data collected they are owned by different organizations, and are integrated in order to observe phenomena that involve not individuals but all the participants.
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