Monthly summary for 2025-03: Across BHoM and BHoM_Engine, delivered foundational work focused on maintainability, extensibility, and resilience, setting the stage for future feature work and more reliable upgrades. Key progress includes: in BHoM, groundwork for Life Cycle Assessment (LCA) through the LCA Modules and Metrics Framework, defining core enums and classes to enable future LCA calculations. In BHoM_Engine, a broad set of internal refactorings and API usability improvements, including folder restructuring (PathItem moved to Objects; DomainTree creates moved to a subfolder), naming consistency, and new extension methods to improve developer experience. Additionally, a resilience improvement was added for upgrades: a fallback path to inter-process communication if direct upgrader DLL invocation fails (e.g., BadImageFormatException). These efforts collectively improve maintainability, onboarding, and robustness for future multi-repo developments.

February 2025 (2025-02) – BHoM_Engine focused on strengthening the accuracy and stability of core method discovery. Delivered a targeted bug fix to refine core BHoM method filtering by excluding compiler-generated SpecialName accessors (get/set properties and add/remove events) from Global.BHoMMethodList. This was achieved by refining ExtractAssembly.cs filtering logic to prevent these special-name methods from being treated as core BHoM methods, increasing the reliability of method discovery for downstream components.

January 2025 milestone across BHoM core repositories delivering standardized transport methods, improved environmental metric exposure, reliability improvements for assembly loading, and NetStandard 2.0 compatibility. The work emphasizes business value through clearer transport emissions methodologies, unified metric contracts, and robust build/runtime behavior across platforms.

Month: 2024-12. Concise monthly summary of key software delivery across BHoM_Engine and BHoM with a focus on reliability, modular LCAs, and standardized metrics interfaces. Key features delivered: - BHoM_Engine: Improved object comparison reliability in tests and runtime by adding a try-catch around IsEqual, downgrading crashes to warnings to keep the test suite running, adjusting logging levels for comparison errors, and upgrading the CompareNETObjects library for better performance and bug fixes. - BHoM: Transport Emissions Modules and A4 Factor Handling: Added transport emissions calculation modules for LCA (transport modes enum, transport factors and emissions classes, combined LCA factors class) and a boolean toggle to manage A4 factor handling (override vs sum). - BHoM: Environmental Metrics Providers Abstraction: Introduced interfaces and inheritance to standardize access to environmental metrics (IBasicEnvironmentalMetricsProvider and IEnvironmentalMetricsProvider integration for transport factors and related data). - BHoM: Return Trip Factor Rename: Fixed typographical error ReturTripFactor to ReturnTripFactor in VehicleEmissions.cs to ensure accurate naming. Major bugs fixed: - Stability and resilience improvements in object comparison path (IsEqual-related crashes downgraded to warnings; improved test suite reliability). - Typo correction to ensure consistent naming in emissions code. Overall impact and accomplishments: - Strengthened code quality and test reliability, leading to more stable CI pipelines and reduced maintenance overhead. - Enabled scalable LCAs and emissions calculations through modular design and standardized metric access, improving data integration and future extensibility. - Improved code readability and consistency, reducing risk of misreferences in vehicle emissions models. Technologies/skills demonstrated: - C#, .NET, exception handling, robust logging, and test stability practices. - Library modernization (CompareNETObjects, Kellerman library) for performance and reliability. - API design, abstraction, and modular architecture for environmental metrics and emissions data.