UnionInternationalCheminsdeFer/OSDM
Dec 2024 – Mar 2026
7 Months active
Languages Used
CSSDockerfileHTMLJavaScriptMarkdownTypeScriptVueYAML
Technical Skills
AccessibilityCSSContainerizationDependency ManagementDevOpsDocumentation
Andreas Schlapbach
PROFILE
Andreas Schlapbach
Worked on the UnionInternationalCheminsdeFer/OSDM repository, delivering modular, maintainable API specifications and backend features over seven months. Focused on OpenAPI Specification and YAML, the work included modularizing the API spec into domain-specific files, standardizing schema references, and introducing new data models such as compartments and person entities. Enhanced onboarding and accessibility through UI/UX improvements using Vue.js and CSS, while also upgrading dependencies and build tooling for stability. Addressed integration issues by aligning versioning and deprecating outdated fields, and improved documentation quality and linting. These efforts reduced integration complexity, improved maintainability, and supported scalable, future-proof API development and release processes.
Overall Statistics
Feature vs Bugs
85%Features
Repository Contributions
38Total
Bugs
2
Commits
38
Features
11
Lines of code
170,936
Activity Months7
Your Network
51 peopleSame Organization
@sbb.ch35
Shared Repositories
16
angelo-farruggiaMember
TheNewCivilianMember
Gurpreet SINGHMember
Josef PetrakMember
Jon EkdahlMember
Josef PetrakMember
orgu-turnitMember
Nicolas SelleslaghMember
Roland KlapwijkMember
Work History
March 2026
9 Commits • 2 Features
Mar 1, 2026In March 2026, UnionInternationalCheminsdeFer/OSDM delivered substantial OpenAPI specification modularization and schema refactoring, delivering measurable maintainability gains and faster downstream updates. Highlights include modularizing the OSDM v3.9 API spec into domain-specific files with hub-based references, refining reference handling to support path and response rewrites, and ensuring top-level security definitions are consistently included. A dedicated person schema was introduced, with passenger-to-person references standardized for consistency and compliance. Schema references across major domains (OJP, fare, travel-account, Place/StopPlace, and related trip schemas) were refactored to point to modularized schemas, reducing cross-file coupling. A separate fare.yml was created and fare definitions migrated from product.yml to improve organization and reuse. Lint quality was improved by resolving 11 warnings for invalid schema examples in the Online API spec. These changes enhance API stability, governance, and future-proofing while enabling faster evolution of the OSDM platform.
9 Commits • 2 Features
Mar 1, 2026In March 2026, UnionInternationalCheminsdeFer/OSDM delivered substantial OpenAPI specification modularization and schema refactoring, delivering measurable maintainability gains and faster downstream updates. Highlights include modularizing the OSDM v3.9 API spec into domain-specific files with hub-based references, refining reference handling to support path and response rewrites, and ensuring top-level security definitions are consistently included. A dedicated person schema was introduced, with passenger-to-person references standardized for consistency and compliance. Schema references across major domains (OJP, fare, travel-account, Place/StopPlace, and related trip schemas) were refactored to point to modularized schemas, reducing cross-file coupling. A separate fare.yml was created and fare definitions migrated from product.yml to improve organization and reuse. Lint quality was improved by resolving 11 warnings for invalid schema examples in the Online API spec. These changes enhance API stability, governance, and future-proofing while enabling faster evolution of the OSDM platform.
March 2026
November 2025
12 Commits • 2 Features
Nov 1, 2025November 2025 monthly performance for OSDM focusing on delivering a scalable compartments feature for PlaceSelection, evolving the data model with SelectedCompartment, and strengthening internal tooling and release processes for smoother, more traceable deployments. Highlights include API design enhancements, incremental versioned delivery, and improved documentation and changelogs.
November 2025
12 Commits • 2 Features
Nov 1, 2025November 2025 monthly performance for OSDM focusing on delivering a scalable compartments feature for PlaceSelection, evolving the data model with SelectedCompartment, and strengthening internal tooling and release processes for smoother, more traceable deployments. Highlights include API design enhancements, incremental versioned delivery, and improved documentation and changelogs.
October 2025
1 Commits
Oct 1, 2025Month 2025-10: API stability and release-readiness. Delivered a bug fix that aligns API spec version numbers across multiple files to match the latest OSDM-online-api, eliminating mismatches and preventing integration errors. The change enhances downstream interoperability, reduces maintenance overhead, and supports smoother client onboarding for upcoming releases.
1 Commits
Oct 1, 2025Month 2025-10: API stability and release-readiness. Delivered a bug fix that aligns API spec version numbers across multiple files to match the latest OSDM-online-api, eliminating mismatches and preventing integration errors. The change enhances downstream interoperability, reduces maintenance overhead, and supports smoother client onboarding for upcoming releases.
October 2025
March 2025
7 Commits • 3 Features
Mar 1, 2025March 2025 performance summary for UnionInternationalCheminsdeFer/OSDM: Delivered API standardization, namespace handling improvements, and data model enhancements that directly improve developer experience, client interoperability, and operational data clarity. Implemented standardized 'code' identifiers, redesigned paging to fix boundary issues, extended namespace handling with PlaceGroup Accommodation, and clarified vehicle run data with a new noPassageToNextCoach flag and rename of coachGroups to coaches. These changes reduce integration complexity, enable multi-tenant usage, and improve accuracy of scheduling and fleet data. The work aligns with strategic goals for API stability, clarity of data modeling, and faster time-to-value for downstream services.
March 2025
7 Commits • 3 Features
Mar 1, 2025March 2025 performance summary for UnionInternationalCheminsdeFer/OSDM: Delivered API standardization, namespace handling improvements, and data model enhancements that directly improve developer experience, client interoperability, and operational data clarity. Implemented standardized 'code' identifiers, redesigned paging to fix boundary issues, extended namespace handling with PlaceGroup Accommodation, and clarified vehicle run data with a new noPassageToNextCoach flag and rename of coachGroups to coaches. These changes reduce integration complexity, enable multi-tenant usage, and improve accuracy of scheduling and fleet data. The work aligns with strategic goals for API stability, clarity of data modeling, and faster time-to-value for downstream services.
February 2025
1 Commits • 1 Features
Feb 1, 2025February 2025 monthly summary for UnionInternationalCheminsdeFer/OSDM focusing on API consistency improvements and deprecation planning to enhance client integration and reduce confusion. Delivered a targeted API update to align naming conventions and clarify supported features, facilitating future maintenance with minimal client disruption.
1 Commits • 1 Features
Feb 1, 2025February 2025 monthly summary for UnionInternationalCheminsdeFer/OSDM focusing on API consistency improvements and deprecation planning to enhance client integration and reduce confusion. Delivered a targeted API update to align naming conventions and clarify supported features, facilitating future maintenance with minimal client disruption.
February 2025
January 2025
1 Commits
Jan 1, 2025January 2025: Focused on tightening API documentation quality and consistency in the OSDM repository. Delivered a targeted bug fix and documentation refactor for the On-Demand Modeling section of the OSDM API specification. The changes were implemented via a focused commit and are expected to improve developer experience, reduce onboarding time, and prevent misuse due to a misrouted URL path.
January 2025
1 Commits
Jan 1, 2025January 2025: Focused on tightening API documentation quality and consistency in the OSDM repository. Delivered a targeted bug fix and documentation refactor for the On-Demand Modeling section of the OSDM API specification. The changes were implemented via a focused commit and are expected to improve developer experience, reduce onboarding time, and prevent misuse due to a misrouted URL path.
December 2024
7 Commits • 3 Features
Dec 1, 2024December 2024 monthly summary for UnionInternationalCheminsdeFer/OSDM focusing on delivering business value through UI/UX improvements, documentation updates, and stability enhancements. Key outcomes include improved onboarding, accessibility, and security posture with maintainable, modern dependencies.
7 Commits • 3 Features
Dec 1, 2024December 2024 monthly summary for UnionInternationalCheminsdeFer/OSDM focusing on delivering business value through UI/UX improvements, documentation updates, and stability enhancements. Key outcomes include improved onboarding, accessibility, and security posture with maintainable, modern dependencies.
December 2024
Activity
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Quality Metrics
Correctness92.6%
Maintainability90.2%
Architecture90.6%
Performance84.6%
AI Usage26.4%
Skills & Technologies
Programming Languages
CSSDockerfileHTMLJSONJavaScriptMarkdownPythonTypeScriptVueYAML
Technical Skills
API DesignAPI DevelopmentAPI DocumentationAPI SpecificationAPI designAPI developmentAccessibilityBackend DevelopmentCSSContainerizationData ModelingDependency ManagementDevOpsDocumentationESLint
Repositories Contributed To
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