Logical Data Modeling - Operations (Behavior)

Data System Architecture


operations are the operations supported on a structure that follows rules.

They define what's called the behavior of the entity.

A serie of operations is called a process.


  • Find the values of the primary key
  • Get
  • in a business process entity such as truck: arrival, departure, unloading, loading


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Data Modeling Generalization Relationship
Logical Data Modeling - Generalization relationship

A generalization is a taxonomic relationship. It's also a behavioral relationship where one entity implements the logical operation (behavior) of a generic entity. See A auto or a bus is a vehicle...
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Logical Data Modeling - Data Model

A data model is an (abstract) model that describes how data are represented and accessed. Data models formally define entity and relationships among entities for a domain of interest. schema A data...
Data System Architecture
Logical Data Modeling - Data Structure

A data structure is a single data instance that: cannot be compared/represented by a single value have operations that follows rules represents an entity, a relationship or both. has two representations:...
Data System Architecture
Logical Data Modeling - Rule

A rule is a statement that defines or constrains: data or procedure Ogilvy on Advertising A rule is the first block of a language (declarative and procedural)
Classes Relationship
Object - Class Diagram (UML)

A class diagram is a diagram specified in the UML standard by showing: the classes (the class is the entity) with its attributes and methods. and the relationships between them By comparison with...
Card Puncher Data Processing
Process (Modeling)

A process may be: a natural process (ie organizational) performed by human: or a machine process: A process may be seen as a succession: of state: of event: Several processes...
Data System Architecture
Tree - Operation

on a tree node get path size ... others:

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