INFORMATION NETWORKS

Information Networks

Information Networks

Introduction

Now days, companies are relying more on the information mobilization and deployment, analyzing large data using their IT resources such as data warehouse. Data warehousing is any organization's most precious asset. Every organization that possesses data has concerns regarding its safety and privacy; organizations want the critical data to be saved from getting attacked by the malicious outside and inside attackers. Since, the nature of data queries and data saved is in a huge volume the security measures taken for data protection are not adequate. The security systems that are currently positioned for data protection consume too many resources, increase the response time of query and at the time might also generate false alarm. This paper will highlight issues regarding to date warehousing security, privacy and personalization. It will also shed light on specific problems and criteria to be met for effective data warehousing.

Issues of Using Data Warehouses

A data warehouse is a collection of data in which information is integrated in the institution and used as support for the process of making management decisions. While various organizations and individuals fail to understand the focus of a Warehouse, experience has shown that there are many potential benefits. Gathering the appropriate data elements, from various sources in a comprehensive application centralized, simplifies the problem of access to information and thus speeds up the process of analysis, consultation and less time to use the information. Applications for decision support based on a data warehousing can be made more practical and easier for greater business efficiency, which is not achieved when using only data coming from operational applications (which help in the operation of the company in its daily operations), in which information is collected by separate processes and often complex. The security problem associated with data warehouses is to ensure that system resources are, under all circumstances, used for its intended purpose. For that protection mechanisms are used. Operating systems provide some protection mechanisms to implement policies security. The paper will discuss security, personalization and privacy issues related to Data warehouses (Date, 2003).

Description to the Issue

The security problem associated with data warehouses is to ensure that system resources are, under all circumstances, used for its intended purpose. For that protection mechanisms are used. Operating systems provide some protection mechanisms to implement policies security (Han, 2001). Policies define what to do (what data and resources should be protected from whom, is a management problem), and the mechanisms determining how to do it. This separation is important in terms of flexibility, since policies can vary over time and an organization to another. The same mechanisms, if flexible, can be used to implement different policies. An important aspect of security is to prevent loss of information, which may occur for several reasons: natural phenomena, wars, hardware or software, or human error. There is a single solution: keep the information backed up, preferably in a faraway place .For secure storage, security is required to be ...