Data And Information In A Digital World Flashcards
What are the 3 levels of decision making?
Strategic
Tactical
Operational
What is data monetisation?
Creating and obtaining value from digital assets.
What is ETL?
Extraction, transformation and loading
What is a data warehouse?
A system used for reporting and data analysis
What is data extraction?
Taking data from a variety of sources
What is data transformation?
The processing of data into a storage format for querying and analysis
What is data loading?
The insertion of data into the final target database
What is a data engineer?
An IT literate who creates the link between the sources of data and the data warehouse
What is data mining?
The process of discovering patterns in large data sets
What are the 2 components of Hadoop?
- Hadoop distribute file system - breaks the task into chunks and distributes them
- MapReduce framework - what coordinates the distributed processing of the data to achieve the outcome
What is business intelligence?
The technical architecture of systems that extract, assemble,store and access data to provide reports and analysis.
What is data modelling?
An organisations data storage that allows it to be stored/retrieved in an efficient and effective way.
What is data manipulation?
Making data easier to read, involving adding, deleting, querying and modifying data using data manipulation language.
What is data analysis?
The evaluation of data to create information that is valuable in making decisions.
What are the 3 levels of data modelling?
- Conceptual: practical - what data is needed
- Logical: technical - how will the data be held and used
- Physical: systematic - how will the data be maintained
