Legacy Data
Legacy data comes from virtually everywhere within the information system and support legacy systems. The many sources of legacy data include databases, often relational but hierarchical, network, ob...
Data Warehouse
End User Data
End User Data can either be data provided by a data warehouse or the data created by end users for query processing. The technical world of computing and computers has always been divided into two ge...
Dynamic Queries
Dynamic Queries are queries that are executed during run-time. In general, they are constructed dynamically with the help of desktop-resident query tools. Many, if not, most of the ...
Existing Data Quality Criteria
The most general sense, data quality is an indication of well the data is in terms of integrity and accuracy as it is stored in the data resource in order to meet the demand of business information. ...
Dynamic Data Distribution
The process of data distribution is not just a process of replicating data at more than one data site in order to develop and maintain an integrated data resource that ensures data are properly manag...
Dual Data Partitioning
Dual data partitioning is common in most data distribution. By its very essence, a data partitioning process is a task which determines which data subjects, data occurrence groups and data characteri...
Enterprise System Connection Architecture (ESCON)
Enterprise System Connection Architecture (ESCON) is an IBM mainframe channel architecture which is commonly used to attach storage devices. In particular, it is a serial optical interface connecting...
Denormalized Data Store
In a real world scenario, a data warehouse is implemented with different kinds of data stores supporting the whole system as it handles high level volume of data. These three kinds of data stores are...
Denormalized Data
In any database implementation, it is always advised to normalize the database for optimal performance by reducing redundancy and maintaining data integrity. The process of normalization involves put...
Enterprise Storage
Enterprise Storage is basically computer storage on a grand scale. Before understanding the concept of enterprise storage, let us first go through an overview of the basic computer storage. A compute...