Model
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In software modeling, a '''model''' is an abstract representation that serves as a blueprint for the system being developed. <blockquote>[[/insights.sei.cmu.edu/blog/software-modeling-what-to-model-and-why/|It’s a collection of representations that can be graphical, textual, or XML-based, depending on the languages and tools used<sup>1</sup>]]. [[/insights.sei.cmu.edu/blog/software-modeling-what-to-model-and-why/|Models are built and analyzed before the actual implementation of the system and guide the subsequent development process]][[/www.cambridge.org/core/books/software-modeling-and-design/introduction/8D427C2B5EC8190D05F36D9CFB3BA0D0|<sup>2</sup>]]. [[/www.educative.io/blog/software-process-model-types|They help in understanding and managing the complexity of software systems by providing a simplified view of the system, which is crucial for analysis, communication among stakeholders, and guiding the construction of the actual software<sup>3</sup>]][[/binariks.com/blog/software-development-models/|<sup>4</sup>]].
=== Definition of a Model ===
A '''model''' refers to an abstract representation of a system, process, or concept. It is a simplified and structured representation of a real-world entity, system, or phenomenon.  


Modeling plays a pivotal role in software development for several reasons:
Models capture essential aspects, relationships, and behaviour without unnecessary details.


# [[/www.startertutorials.com/uml/importance-of-modeling.html|'''Visualization''': It helps stakeholders visualize the system’s architecture and behavior before it’s built, which is crucial for understanding complex systems<sup>1</sup>]].
Models serve as a means of communication and understanding among stakeholders (developers, architects, users, etc.).
# [[/www.startertutorials.com/uml/importance-of-modeling.html|'''Specification''': Models provide a precise way to capture and communicate system requirements and design decisions<sup>1</sup>]].
# [[/www.startertutorials.com/uml/importance-of-modeling.html|'''Guidance''': They serve as a blueprint that guides the construction of the system, ensuring that the final product aligns with the envisioned design<sup>1</sup>]].
# [[/www.startertutorials.com/uml/importance-of-modeling.html|'''Documentation''': Models document the decisions made during the development process, which is valuable for future maintenance and updates<sup>1</sup>]].


[[/www.startertutorials.com/uml/importance-of-modeling.html|In essence, modeling reduces complexity, facilitates communication among team members, and serves as a foundation for building a robust and maintainable software system]][[/www.includehelp.com/basics/a-software-model-the-importance-of-a-model-in-a-software.aspx|<sup>2</sup>]][[/www.cambridge.org/core/books/software-modeling-and-design/introduction/8D427C2B5EC8190D05F36D9CFB3BA0D0|<sup>3</sup>]].
=== Purpose of Models ===
'''Abstraction''': Models abstract complex systems into manageable components.


</blockquote>
'''Analysis''': They allow analysis, validation, and verification before actual implementation.
 
'''Documentation''': Models document design decisions, requirements, and system behaviour.
 
'''Visualization''': They provide visual representations for better comprehension.
 
=== Types of Models ===
* '''Architectural Models''': Describe the high-level structure and components of a system.
* '''Behavioral Models''': Illustrate how components interact and respond to events. Partially represented in MDriven with [[Training:UML – State machines|UML – State machines]]
* '''Data Models''': Represent data structures, relationships, and constraints. In MDriven, these are represented by the [[Documentation:Class diagrams|Class Diagram]].
* '''Process Models''': Depict workflows, business processes, or system behaviour over time.
 
=== Model Driven Architecture and Model-Driven Development ===
Read more here about different software development strategies using models: [[BestPractices:Model Driven]]
 
=== Examples of Models in MDriven ===
* '''UML (Unified Modeling Language)''' diagrams (e.g., class diagrams, sequence diagrams).
* '''State diagrams''' for modeling system behaviour.

Latest revision as of 06:33, 3 June 2024

Definition of a Model

A model refers to an abstract representation of a system, process, or concept. It is a simplified and structured representation of a real-world entity, system, or phenomenon.

Models capture essential aspects, relationships, and behaviour without unnecessary details.

Models serve as a means of communication and understanding among stakeholders (developers, architects, users, etc.).

Purpose of Models

Abstraction: Models abstract complex systems into manageable components.

Analysis: They allow analysis, validation, and verification before actual implementation.

Documentation: Models document design decisions, requirements, and system behaviour.

Visualization: They provide visual representations for better comprehension.

Types of Models

  • Architectural Models: Describe the high-level structure and components of a system.
  • Behavioral Models: Illustrate how components interact and respond to events. Partially represented in MDriven with UML – State machines
  • Data Models: Represent data structures, relationships, and constraints. In MDriven, these are represented by the Class Diagram.
  • Process Models: Depict workflows, business processes, or system behaviour over time.

Model Driven Architecture and Model-Driven Development

Read more here about different software development strategies using models: BestPractices:Model Driven

Examples of Models in MDriven

  • UML (Unified Modeling Language) diagrams (e.g., class diagrams, sequence diagrams).
  • State diagrams for modeling system behaviour.
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