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Transforming Data from the IT System to the Message “passenger list” {#transforming-data-from-the-it-system-to-the-message-passenger-list .title}
On the basis of the available class diagrams of passenger services and the message passenger list, we will explain the necessary steps for selecting and transforming data concerning flight and passengers.
In Figure 5.22, we have emphasized the classes needed for the transformation of flight and passenger data, or rather, de-emphasized the classes of the diagram that we do not need:
Transformation of Flight Data
We can see in Figure 5.23 that a flight has n corresponding flights. The multiplicity of the class flight is insignificant, since we are only interested in an exactly 1:1 relationship for each message---meaning, we are only interested in one single flight at a time. In the business object, the two classes of the IT system can be combined to one class, and attributes relevant for the business object can be adopted:
To obtain the correct message data from the IT system, we have to indicate the day of the desired flight as selection criterion in addition to the flight number.
Transformation of Passenger Data
For the transformation of passenger data to the message passenger list, we need many more steps than we did for the flight data.
Define which data is needed:
- customer.name
- ticket.number
- count (piece of luggage)
Regulations define how the correct data can be read out of the IT system. In addition to the rules about how to read the necessary data from the various classes, we have to ensure that only passengers who belong on the selected flight, and who also are on board this flight, are listed.
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- Elements of the View
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- Sequence Diagram
- Constructing Communication Diagrams
- Constructing Sequence Diagrams
- Modeling for System
Integration
- Terminology of System Integration
- Messages in UML
- One Model---Two Views
- Process View
- The Business System Model as Foundation
- Elements of the View
- Activity Diagrams
- Sequence Diagram
- Constructing Diagrams in the Process View
- The Static View
- Elements of the View
- Class Diagram
- Constructing Class Diagrams
- Transforming Data from the IT System to the Message “passenger list”
- Transformation of UML Messages into Various Standard Formats
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Transforming Data from the IT System to the Message “passenger list” {#transforming-data-from-the-it-system-to-the-message-passenger-list-1 .title}
On the basis of the available class diagrams of passenger services and the message passenger list, we will explain the necessary steps for selecting and transforming data concerning flight and passengers.
In Figure 5.22, we have emphasized the classes needed for the transformation of flight and passenger data, or rather, de-emphasized the classes of the diagram that we do not need:
Transformation of Flight Data
We can see in Figure 5.23 that a flight has n corresponding flights. The multiplicity of the class flight is insignificant, since we are only interested in an exactly 1:1 relationship for each message---meaning, we are only interested in one single flight at a time. In the business object, the two classes of the IT system can be combined to one class, and attributes relevant for the business object can be adopted:
To obtain the correct message data from the IT system, we have to indicate the day of the desired flight as selection criterion in addition to the flight number.
Transformation of Passenger Data
For the transformation of passenger data to the message passenger list, we need many more steps than we did for the flight data.
Define which data is needed:
- customer.name
- ticket.number
- count (piece of luggage)
Regulations define how the correct data can be read out of the IT system. In addition to the rules about how to read the necessary data from the various classes, we have to ensure that only passengers who belong on the selected flight, and who also are on board this flight, are listed.
Read next
Transformation of UML Messages into Various Standard Formats []{.fa .fa-arrow-right}{.btn .btn-primary rel=“next”}
Return
[]{.fa .fa-arrow-left} Constructing Class Diagrams{.btn .btn-default rel=“prev”}
Computer Science Distilled{.btn .btn-landing-ref .btn-hg .btn-block .btn-secondary style=“font-size: 16px; position: relative”}
Do you remember anything at all from your computer science class? Quicksort, Graph traversal, Big’O and other stuff? Revise your memories with our new book on Computer Science.
Psst! Did I mention that we’re offering sexy discounts right now?
{width=“250”
height=“312”
srcset=“/images/content-public/logos/logo-2x.png?id=fee3b4b0a14ba60dc0fe368695d78be9 2x”}{.menu-brand}
- Premium Stuff
- Design Patterns
- AntiPatterns
- Refactoring
- Code Smells
- Refactoring techniques
- Composing Methods
- Moving Features between Objects
- Organizing Data
- Self Encapsulate Field
- Replace Data Value with Object
- Change Value to Reference
- Change Reference to Value
- Replace Array with Object
- Duplicate Observed Data
- Change Unidirectional Association to Bidirectional
- Change Bidirectional Association to Unidirectional
- Replace Magic Number with Symbolic Constant
- Encapsulate Field
- Encapsulate Collection
- Replace Type Code with Class
- Replace Type Code with Subclasses
- Strategy
- Replace Subclass with Fields
- Simplifying Conditional Expressions
- Simplifying Method
Calls
- Rename Method
- Add Parameter
- Remove Parameter
- Separate Query from Modifier
- Parameterize Method
- Replace Parameter with Explicit Methods
- Preserve Whole Object
- Replace Parameter with Method Call
- Introduce Parameter Object
- Remove Setting Method
- Hide Method
- Replace Constructor with Factory Method
- Replace Error Code with Exception
- Replace Exception with Test
- Dealing with Generalisation
- UML
- Introduction
- Basic Principles and Background
- Modeling Business Systems
- Business Processes and Business Systems
- One Model---Two Views
- External View
- The Elements of a View
- Use Case Diagrams
- Constructing Use Case Diagrams
- Activity Diagrams
- Constructing Activity Diagrams
- Sequence Diagrams
- Constructing Sequence Diagrams
- High-Level Sequence Diagrams
- Sequence Diagrams for Scenarios of Business Use Cases
- Internal View
- Package Diagram
- Constructing Package Diagrams
- Class Diagram
- Constructing Class Diagrams
- Activity Diagram
- Modeling IT Systems
- External View
- The User View or “I don’t care how it works, as long as it works.”
- The Elements of a View
- Use Case Diagram
- Query Events and Mutation Events
- Use Case Sequence Diagram
- Constructing the External View
- Structural View
- Objects and Classes
- Generalization, Specialization, and Inheritance
- Static and Dynamic Business Rules
- Elements of the View
- Class Diagram
- Constructing Class Diagrams
- The Behavioral View
- The Life of an Object
- The Elements of the View
- Statechart Diagram
- Constructing Statechart Diagrams
- Interaction View
- Seeing What Happens Inside the IT System
- Elements of the View
- Communication Diagram
- Sequence Diagram
- Constructing Communication Diagrams
- Constructing Sequence Diagrams
- Modeling for System
Integration
- Terminology of System Integration
- Messages in UML
- One Model---Two Views
- Process View
- The Business System Model as Foundation
- Elements of the View
- Activity Diagrams
- Sequence Diagram
- Constructing Diagrams in the Process View
- The Static View
- Elements of the View
- Class Diagram
- Constructing Class Diagrams
- Transforming Data from the IT System to the Message “passenger list”
- Transformation of UML Messages into Various Standard Formats
Log in Contact us{.userecho-public rel=“nofollow”}
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