Version 2.6.1

New Features and Improvements

BESSER Low-code Platform

• SQL & SQLAlchemy Generator: Enhanced the generators to support association classes

Fixes

BESSER Low-code Platform

• Fixed issues: 282 , 282

Version 2.6.0

New Features and Improvements

BESSER Low-code Platform

• NN Metamodel: Enhanced default configurations for neural network layers and improved flexibility in setting module attributes.
• PyTorch and TensorFlow Code Generators: Streamlined type hinting and shape handling, and updated default parameter settings for improved compatibility in PyTorch code generation.
• Django Generator: Added support for generating a Django application that includes both database models and predefined UI components, such as forms, templates, and views.
• UI Mock-ups to B-UML: Introduced functionality for extracting B-UML models directly from mockups (both hand-drawn and digital), encompassing both structural and GUI representations.

Web Modeling Editor

• Added support for Association Class

Fixes

BESSER Low-code Platform

• Fixed issues: 272 , 275.

Documentation

• Add documentation for NN metamodel, Pytorch, and TensorFlow code generators (API section)

Improvements

• Includes automatic installation of the following packages when using pip install besser[nn]:

  • pillow>=11.1.0
  • numpy>=2.2.4
  • torch>=2.6.0

• Added support for neural network packages with local installation via --nn flag in setup_environment.py

The neural network dependencies have been made optional to reduce the installation footprint for users who don't need these capabilities.

New Features

• Neural Network metamodel extension: B-UML now supports the definition of neural networks (Inspired by deep learning frameworks like PyTorch and TensorFlow).
• Grammar to define NNs: A textual notation is available to support the definition of neural networks in B-UML.

New Features and Improvements

Web Modeling Editor

• Now, our WME is online! You can access it at https://editor.besser-pearl.org
• New interface design.
• Integrated storage capabilities allow seamless model persistence and cross-device access.
• Added support for modeling collaboration using the WME. Now, multiple users can work on the same model simultaneously.
• Optimized Docker Compose configuration for improved resource efficiency and faster deployment.

BESSER Low-code Platform

• Structural metamodel: The Element class is now the superclass of all structural model elements, including NamedElement, Generalization, etc. The attributes is_derived and timestamp have been moved to this class. Documentation has been updated accordingly.
• SQLAlchemy Generator: Added support for MSSQL and MariaDB.
• SQL DDL Generator: Added support for MSSQL, MariaDB, and SQLite.

Fixes

Web Modeling Editor

• Fixed issues: #214 #219 #217 #159 #164 #166 #170 #168 #172 #174 #177 #175 #184 #192 #194 #195 #200 #201

BESSER Low-code Platform

• Fixed issue: #180

Documentation

• Updated the Web Modeling Editor documentation.
• Updated the Structural metamodel documentation.
• Updated the SQL DDL Generator documentation.

New Features

• Feature metamodel extension: In B-UML you can define now feature models to define structured representations of the features (functionalities or characteristics) of a system, capturing their variability and dependencies.
• JSON Schema generator: This generator consumes a B-UML structural model and produces the equivalent JSON schema that can be used to validate whether given JSON objects conform to the schema.

Improvements

• The is_derived boolean attribute was included for classes in the structural metamodel
• New constraint included in structural models to avoid spaces in the names of objects
• SQL Alchemy generator: Added a new attribute for the database management system (DBMS) to be used. Defaults to sqlite

Fixes

• Fixed issues: #228 #56 #226 #213 #8 #190 #220

Documentation

• Updated SQLAlchemy generator docs
• Feature metamodel docs added

Improvements

Web Modeling Editor

• Added OCL Constraint and OCL Checker
• Enhanced Django Generator Support
• Interactive error verification with detailed popup notifications
• Unique generation path
• New association list feature for easier relationship mapping
• More Connection point to have a better visibility
• Streamlined DockerCompose configuration for lighter deployment

BESSER Low-code Platform

• Simplified OCL Parser
  • Consolidated multiple parsing functions into unified entry point
  • Improved code maintainability and reduced complexity
• New OCL Features:
  • Pre/post conditions for operations
  • Initialization expressions for attributes
  • Syntax validation for OCL constraints
• Added OCL to the domain_model_to_code function
• Django code generator
  • Support for generation of a complete Django project
  • Support for deployement using Docker Compose

Improvements

Web Modeling Editor

• Added the ability to name associations.
• Introduced an automatic unique naming system to prevent duplicate class names, ensuring compatibility with BUML
• Enhanced interface navigability for various screen sizes

Fixes

Web Modeling Editor

• Improved parse_multiplicity function to handle single * cases and enhanced error handling
• Fixed type-end handling for binary associations
• Resolved issues with naming associations

Documentation

• Updated GUI documentation for better understandability

New features

Web Modeling Editor

• Enables the design of B-UML models through a graphical dashboard
• Provides access to BESSER code generators to directly download the generated code
• Supports model import/export in B-UML and JSON formats

Improvements

• Extended OCL metamodel to handle DateLiteralExpressions
• Improved grammar and parser to handle dates and reject construct

Fixes

• Fixed the name of the parameter buml_file_path in the image_to_buml feature.