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Information Systems with Databases - Coggle Diagram
Information Systems with Databases
Information and Data
Information
Data
Representative Content
presentation of information through data
grouping data into documents
structuring of documents
presentation of documents in different forms
Functional Content
generation and presentation of information in a specific form
information transfer in various ways
data processing
Information System
Hardware
Computer devices
Data transmission
Special technical devises
Software
System software
Custom software
Communications
Hardware network communication
Software support
Middleware
Linguistic Support
Indexing texts
Classification text
Thematic rubricating
Organizational Support
Management of integrated components and operations
Technical Support
Databases and Database Management
Key points of Database definition
Data becomes organized
Data obtained some ordering
Data obtained internal structure
Set of data processing operations
Declarative tools of data representation - language of the data definition
Data Definition Language
Describe a logical schema
Describe the way of storing data
Describe the way of accessing data
Data Manipulation Language
Processing data elements
Algorithmic tools of constructing applications
The External Level of the Database Architecture
An external model
The functions of an external level
The Internal Level of the Database Architecture
An internal model
The Functions of an internal level
The Conceptual Level of the Database Architecture
Problem domain (PD)
Conceptual model of the PD
Conceptual schema
The functions of DBMS
Providing linguistic tools for describing and manipulating data
providing the logical data model support
ensuring interaction of logical and physical data structures
providing security and integrity of the data
providing support for the DB in its current state