Production Planning and Control
Introduction For efficient, effective and economical operation in a manufacturing unit of an organization, it is essential to integrate the production planning and control system. Production planning and subsequent production control follow adaption of product design and finalization of a production process. Production planning and control address a fundamental problem of low productivity, inventory management […]
Why Globalization Succeeds When the Workforce is Young ?
In a previous article, we looked at how globalization benefits the young more than the elderly. This article looks at how a youthful workforce is necessary for globalization to succeed. The reason for this is that when the majority of the workforce is young, there is more number of people who are competing for the […]
The Interconnectedness between the American Economy and the World Economy
It is often said that when America sneezes, the entire world catches a cold. This is because of the high degree of integration between the American economy and other economies of the world. Ever since World War 2 ended, America became a dominant economic power. This led to increased integration between the American economy and […]
The Drivers of Globalization: Friedmans Flatteners
The famous author and cheerleader for globalization, Thomas Friedman, in his book The World is Flat identified some key drivers of globalization. He called these factors the flatteners to denote the premise of the book that these factors were responsible for the flattening of the world. In other words, globalization has ensured that all countries […]
Supply Chain Management – Definition and importance of its strategies
Definition of Supply Chain Management If you go to a Supermarket and pick up a few items off the shelf from electronics and white goods or even clothes and look at the labels, the chances are that you will find them having been manufactured in China or Mexico. The coffee pods you buy to use […]
One of the critical components in the information technology age is the data. Data is the source of all the information and information is valuable for decision making process.
Decision support systems are developed to support executive management and relevant decision makers. In the modern era, there is large volume of information is available. Data warehouse is required to store huge volume of data.
Since the data warehouse is supporting decision support system, therefore, it should be subject oriented, integrated, collected over a period of time and static.
Data warehouse has subject oriented data. This subject oriented data could be information such as sales, customer name, etc. Data warehouse excludes information, which is not useful for decision-making process.
Data warehouse is developed as an integration of multiple heterogeneous data sources. As the data source have their own data protocol, data processing is required while data warehousing.
Data warehouse provides information with time as function. This gives historical perspective to the information.
Once data is captured into the data warehouse, it cannot be changed.
Data within the data warehouse is maintained in form of star schema, snowflake schema and galaxy schema.
The data mart is that portion of the access layer of the data warehouse which is utilized by the end user. Therefore, data mart is a subset of the data warehouse. Data mart is usually assigned to a specific business unit within the enterprise. Data mart is used to slice data warehouse into a different business unit. Typically, ownership of the data mart is given to that particular business unit or department.
The primary utility of data mart is business intelligence. A data mart requires very less investment compared to data warehouse and therefore it is apt for smaller business. Set up time for data mart is very less again making it practical for smaller business.
The main advantages of data mart are as follows:
OLAP or Online Analytical Processing is a concept in which data is analyzed through multiple dimensions with help of structure called cube. OLAP helps in converting data into information.
The main objective of OLAP is to summarize information for decision making process from large data base. The report generated through OLAP can be presented in a format as per the requirement of end user.
The advantages of OLAP are as follows:
There are three types of OLAP multi-dimensional OLAP, relational OLAP and Hybrid OLAP. In multi-dimensional OLAP data is usually stored in proprietary structure suitable for multi-dimensional analysis. In relational OLAP data base is structure through standard database in star or snowflake schema. A combination of multi-dimensional OLAP and relational OLAP is the hybrid OLAP.
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Communication Systems and Groupware – Information System Concepts that Apply in All Functional Areas of Business
February 12, 2025
