15. Data Flashcards
Structured data
It’s written in a format that’s easy for machines to understand (easily searchable by basic algorithms)
Unstructured data
More like human language
Unstructured data examples
Emails Text documents (word documents, PDFs) Social media posts Videos Audio files Images
Value of data examples
Amazon collecting unstructured data from Alexa
Data model - vehicle manufacturer
Ford and Nike use big data
Business benefits of high quality information
Information is everywhere in an organisation
Employees must be able to obtain and analyse the many different levels, formats, and granularities of organisational information to make decisions
Successfully collection, compiling, sorting, and analysing information can provide tremendous insight into how an organisation is performing
Information types
Transactional
Analytical
Real-time information
Immediate, up-to-date information
Real-time system
Provides real-time information in response to requests
Potential business effects resulting from low quality information
Inability to accurately track customers
Difficulty identifying valuable customers
Inability to identify selling opportunities
Marketing to nonexistent customers
Difficulty to tracking revenue
Inability to build strong customer relationships
Where is information stored?
Relational database
Database management systems (DBMS)
Allows user to create, read, update, and delete data in a relational database
Information stored in a relational database
Data element
Data model
Metadata
Data dictionary
Database advantages from a business perspective
Increased flexibility Increased scalability and performance Reduces information redundancy Increased information integrity Increased information security
