Before scanning it is important to know these five vital information: size of original image, size of printed image, LPI at which your image will be printed, resolution multiplier and process of editing scanned image. The hint is - higher resolution, larger file size.

To calculate final image resolution, these are solutions:

1.If size of image is absolute, multiply LPI by your resolution multiplier. Ex. LPI x 2 for brochures.

2.if size of image is not absolute, multiply LPI by your resolution multiplier and then size of final image as a percentage to original. Ex. LPI x 2 x %.

In cases of commercial printing, ask your print shop if you do not know required LPI as well as other specifications.

Computerization of business processes; technological advances in transmission and storage of data; and powerful database management tools have opened up new possibilities of data manipulation and analysis. Business managers are eager to explore repositories of current and historical data to identify trends and patterns in wrap and hoof of business. They hope to mine data and use them for taking intelligent business decisions. In this context, industries are increasingly focusing on data warehousing, Online Analytical Processing (OLAP), and other related technologies.

What's Difference

‘Data warehouse’ and ‘OLAP’ are terms which are often used interchangeably. Actually they refer to two different components of a decision support system. While data in a data warehouse is composed of historical data of organization stored for end user analysis, OLAP is a technology that enables a data warehouse to be used effectively for online analysis using complex analytical queries. The differences between OLAP and data warehouse is tabulated below for ease of understanding:

Data Warehouse