Basics 8 min read
Types of User Interfaces
User interfaces can be classified into the following three categories: • Command language-based interfaces • Menu-based interfaces • Direct manipulation interfaces Command Language-based…
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Basics 10 min read
Basic Concepts in User Interface Design
Characteristics of a user interface It is very important to identify the characteristics desired of a good user interface. Because…
Basics 6 min read
Explain the CRC cards technique
The interactions diagrams for only simple use cases that involve collaboration among a limited number of classes can be drawn…
Basics 8 min read
Domain Modeling
Explain what is meant by domain modeling. Domain modeling is known as conceptual modeling. A domain model is a representation…
Basics 6 min read
Design Patterns
Identify the basic difference between object-oriented analysis (OOA) and object-oriented design (OOD). The term object-oriented analysis (OOA) refers to…
Basics 5 min read
Activity and State Chart Diagram
Activity diagrams The activity diagram is possibly one modeling element which was not present in any of the predecessors of…
Basics 7 min read
Composition
Composition is a stricter form of aggregation, in which the parts are existence-dependent on the whole. This means that the…
Basics 5 min read
Class and Interaction Diagrams
Class diagrams A class diagram describes the static structure of a system. It shows how a system is structured rather…
Basics 5 min read
Utility of use case diagrams
From use case diagram, it is obvious that the utility of the use cases are represented by ellipses. They along…
Basics 6 min read
Use Case Model
The use case model for any system consists of a set of “use cases”. Intuitively, use cases represent the different…