For the software and information technology, there are some system designed that are called the data warehousing. For these are required some tools to support their function in different stages. These are considerably called the data extraction tool which is basically the software applications need for the extraction, transformation and loading processes.
When we would move to define its role we can see that, these are the tools that extract and transform the data from the operational systems and then help load that data from the operational systems with then helping them to load that data into the data warehouse. This is further going to assist the managers or the users of an organization in the business decision making processes. There is ETL process which involves very complex activities that would facilitate the process for employing the right data ware house tools.
It is necessary for the companies to consider having their data warehouses from where they might buy the data warehouse tools from the third parties or can also develop their own tools. For this job, they often are going to engage the in- house programmes and these requirements seem challenging with recommendation to seek help of third party tools that are more advantageous. Still before buying that there are some things which are needed to be considered and kept in mind. These are like;-
- To check out the functional capability where the tools are chosen with the possibility of handle both the transformation as well as cleansing part of a data wares housing projects. This must be strong for both the tasks and then might consider buying it.
- Ability to directly read the source form data source where the tool should have the capability to read directly from the data source. This is going to bring on with the ability to make the processing faster and more efficient.
- Metadata support; a specified ware house management tool that must have the capability to handle the metadata. This aspect is quite important because the metadata of the data warehouse is used to map the source data to its destination.