The protocol layer in a program that handles the moving of data in and out across a physical link in a network. The Data-Link Layer is layer 2 in the Open Systems Interconnect (OSI) model for a set of telecommunication protocols.

Data List is a list of data in any format.

The Data Loader is an easy to use graphical tool that helps you to get your data into Salesforce objects. By integrating Force.com API, you can also use Data Loader to extract data from database objects, perform bulk deletions by exporting the ID fields for the data you wish to delete.

A data log is a piece of information (raw data) stored about a particular transaction along with the time of its occurance for future purpose.

Data loss prevention (DLP) is a strategy for making sure that end users do not send sensitive or critical information outside the corporate network. The term is also used to describe software products that help a network administrator control what data end users can transfer.

A set of information security tools used  to stop users from sending sensitive information outside of the corporate network. DLP products use business rules to examine file content and tag confidential information so that users cannot disclose it.

Data management is the development and execution of architectures, policies, practices and procedures in order to manage the information lifecycle needs of an enterprise in an effective manner.

The exponential growth of data across organizations has increased the demand for better Data Management techniques and the rise of Data Managers. Data Managers don't simply oversee the storage of information in a system. As technology changes and new advances are made, data managers must keep up with the current developments in database design, architecture, storage & retrieval and safeguard data from hackers and security breaches.

Data mapping is a process used in data warehousing by which different data models are linked to each other using a defined set of methods to characterize the data in a specific definition. This definition can be any atomic unit, such as a unit of metadata or any other semantic. This data linking follows a set of standards, which depends on the domain value of the data model used.

A repository of data gathered from operational data and other sources that is designed to serve a particular community of knowledge workers. In scope, the data may derive from an enterprise-wide database or data warehouse. 

A method of creating a structurally similar but inauthentic version of an organization's data that can be used for software testing and user training. The purpose is to protect the actual data while having a functional substitute.

The process of transferring data between storage types, formats, or computer systems. It is usually performed programmatically to achieve an automated migration, freeing up human resources from tedious tasks.

Data mining is sorting through data to identify patterns and establish relationships.  

The formalization and documentation of existing processes and events that occur during application software design and development. It captures and translates complex system designs into data flows and processes.

A discrete unit of information. In a general sense, any single fact is a data point. 

The ability to move data among different application programs, computing environments or cloud services.