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OLAP in Business Intelligence

 

OLAP: 

OLAP in Business Intelligence: 

OLAP (Online Analytical Processing) is a software which perform multidimensional analysis of data and provide the capability for complex calculation, trends analysis and sophisticated data modeling.

Most business data have multiple dimensions categories into which the data are broken down for presentation, tracking or analysis for example; sales figure might have several dimensions related to location (region, country, state) time (year, month, week, day) product (clothing, men/women, age, brand).

All these dataset are stored in data warehouse in tables. Then OLAP extract data from relational dataset and reorganized into multidimensional format which enable very fast processing and insightful analysis.

Why is OLAP important ?

OLAP offers the following benefits and that is why OLAP is unique and special:

It offers Business-multidimensional data monitoring.

OLAP is useful in business since it analyze and organize data in a multidimensional approach. Here data are organized into different dimensions where dimension reflects how business users typically think of the business. For example, business users might view the data by market, products, customers and over time. However, in OLAP each dimension or attribute contains members that share the common characteristics such as in a picture below:




Also OLAP offers high speed of data processing.

Transactional data from different points of sales, data about every particular customer and supplier, data about all employees in the company and their performance are all stored in a single place ready for operation. In OLAP, it doesn’t matter how large data are contained in data warehouse, but OLAP will make a complex report using any kind of data from the warehouse in just few minutes.

OLAP offers too “ what if scenarios”

OLAP gives the users ability to replace the value to see what other outcomes may take place if there are changes introduced in a business. Other tools of BI need Integration in order to do this, but in OLAP data is available to users without any technical background; this is because end users do not need special training to see and understand how things are.

The best software for OLAP activities is TALEND studio. It is easy to use and available free.

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