Studetns :

Issam , Graciela

Business intelligence (BI) is a broad category of applications and technologies for gathering, storing, analyzing, and providing access to data to help enterprise users make better business decisions. BI applications include the activities of decision support systems, query and reporting, online analytical processing (OLAP), statistical analysis, forecasting, and data mining.

Business intelligence applications can be:•Mission-critical and integral to an enterprise's operations or occasional to meet a special requirement•Enterprise-wide or local to one division, department, or project•Centrally initiated or driven by user demand

The crucial position that BI occupies in a company or an organization is dramatically increasing everyday as new competitors are rising and new inventions are made.the need for a new way of thinking to solve problems and face challenges is essential in order for a company to survive in the market. Studying the most important keys for a profitable decision to be made after speculative analysis and supported knowledge driven by information of the existing market as well as its new structure in the short future .An immediate decisions must be made at the moment of facing a given problem with capacity of being able to absolutely be ready in executing it. BI opens the eyes on the advantage of new market opportunities by seeing things faster thanTheir competitors and being able to act on them.

To achieve the benefits of analytical competition, IT and business experts must tackle their data issues byAnswer some questions .Which goes through sequence of stages : Extract information load of data ETL which is based on saving and loading data from ODS which stands for Operating Data store which is basically a datawarehouse which job is to connect the source system with the destination one , as well as not allowing the servers to be fully saturated .

It is the name given to a type of data base dedicated to serve only one departmentIn the enterprise , a DATAMART can be fed with data from the Datawarehouse And can also be used for analysis purposes in solving problems when found .

OLTP (On-line Transaction Processing) is characterized by a large number of short on-line transactions (INSERT, UPDATE, DELETE). The main emphasis for OLTP systems is put on very fast query processing, maintaining data integrity in multi-access environments and an effectiveness measured by number of transactions per second. In OLTP database there is detailed and current data, and schema used to store transactional databases is the entity model (usually 3NF).

OLAP (On-line Analytical Processing) is characterized by relatively low volume of transactions. Queries are often very complex and involve aggregations. For OLAP systems a response time is an effectiveness measure. OLAP applications are widely used by Data Mining techniques. In OLAP database there is aggregated, historical data, stored in multi-dimensional schemas (usually star schema).

Dashboards often provide at-a-glance views of KPIs relevant to a particular objective or business process (e.g. sales, marketing, human resources, or production).[2] The term dashboard originates from the automobile dashboard where drivers monitor the major functions at a glance. Dashboards give signs about a business letting you know something is wrong or something is right. The corporate world has tried for years to come up with a solution that would tell them if their business needed maintenance or if the temperature of their business was running above normal. Dashboards typically are limited to show summaries, key trends, comparisons, and exceptions. There are five Key elements to a good dashboard:.[3]

1. Simple, communicates easily2. Minimum distractions…it could cause confusion3. Supports organize business with meaning and useful data4. Applies human visual perception to visual presentation of information5. Comforting to the eye

Business Intelligence is not about IT , it is about People .Improving their abilities to make better decisions ,intercommunications and negotiation . It happens by collecting all possible information , store them call them when need to make a rational connections which then we call knowledge. This information gives people the power to manage and maximize their opportunity of success .