1. ArchiMate

Purpose: An open and independent modeling language for enterprise architecture, enabling architects to describe, analyze, and visualize relationships among business domains.

Use Cases: Enterprise architecture modeling, business process analysis.

Official Website: The Open Group - ArchiMate

2. UML (Unified Modeling Language) & OCL (Object Constraint Language)

Purpose: UML is a general-purpose modeling language for specifying, visualizing, and documenting software systems. OCL complements UML by providing a formal language to describe expressions on UML models.

Use Cases: Software design, system modeling, defining constraints and business rules.

Official Websites:

UML

OCL

3. AADL (Architecture Analysis & Design Language)

Purpose: A modeling language focused on the analysis and design of real-time, embedded, and safety-critical systems, capturing both software and hardware components.

Use Cases: Embedded systems, safety-critical system design, performance analysis.

Official Website: OpenAADL

4. xADL

Purpose: A highly-extensible software architecture description language used to describe various aspects of software architectures.

Use Cases: Software architecture modeling, extensible architecture descriptions.

Official Website: Institute for Software Research - xADL

5. SysML (Systems Modeling Language)

Purpose: A general-purpose graphical modeling language for specifying, analyzing, designing, and verifying complex systems, extending UML for systems engineering.

Use Cases: Systems engineering, requirement analysis, system design.

Official Website: OMG SysML

6. Ecore (Eclipse Modeling Framework - EMF)

Purpose: A modeling framework and code generation facility for building tools and applications based on a structured data model.

Use Cases: Model-driven development, code generation, tool development.

Official Website: Eclipse EMF

7. Acme

Purpose: A simple, generic software architecture description language that can be used as a common interchange format for architecture design tools.

Use Cases: Software architecture modeling, tool interoperability.

Official Website: Acme Language Overview

8. Xtext

Purpose: A framework for development of programming languages and domain-specific languages (DSLs), providing a complete infrastructure for language development.

Use Cases: DSL development, language engineering, IDE support.

Official Website: Eclipse Xtext

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