| Criterion | Beginning (1) | Developing (2) | Proficient (3) | Exemplary (4) | |---|---|---|---|---| | 1. Technical Correctness & Functionality | Descriptors: API endpoints are largely non-functional or contain critical errors. Database interactions are incorrect or insecure. Authentication is missing or fundamentally flawed. | Descriptors: Core API endpoints show basic functionality but have significant bugs or edge-case failures. Database interactions are mostly correct but may lack efficiency or error handling. Authentication is present but has security vulnerabilities or incomplete implementation. | Descriptors: All primary API endpoints function correctly with minor, non-critical issues. Database interactions are sound, handling typical operations. Authentication is implemented securely for core functionality. | Descriptors: API is fully functional, robust, and handles edge cases gracefully. Database interactions are efficient, secure, and resilient. Authentication is comprehensively implemented with best practices, including robust error handling. | | | Indicators: API returns 500 errors frequently; data persistence fails; login bypassable. | Indicators: Specific endpoints fail under certain input types; database queries are unoptimized; basic auth implemented but vulnerable to common attacks. | Indicators: All CRUD operations work as expected; database schema is logical; secure token-based authentication is functional. | Indicators: API demonstrates idempotency; transactions are handled correctly; advanced security measures like rate limiting or secure cookie handling are present. | | 2. Code Quality & Design | Descriptors: Code is unreadable, poorly organized, and lacks any discernible structure. No adherence to language conventions. Significant duplication. | Descriptors: Code is somewhat readable but inconsistent in style and organization. Basic modularity attempted but often incomplete. Some code duplication present. | Descriptors: Code is clean, well-structured, and adheres to common style guides (e.g., PEP 8). Good use of functions/classes. Modularity is evident. | Descriptors: Code is highly readable, elegant, and exceptionally well-organized with clear separation of concerns. Demonstrates advanced design patterns where appropriate. Minimal to no duplication. | | | Indicators: Single large file for all logic; variable names are cryptic; no comments. | Indicators: Some functions exceed single responsibility; inconsistent indentation; minor naming convention violations. | Indicators: Logical file structure; consistent naming; functions are focused; basic error handling implemented. | Indicators: Clear package structure; extensive use of abstractions; robust error handling with custom exceptions; thoughtful dependency management. | | 3. Problem Solving & Architecture | Descriptors: Solution does not address core problem requirements. Lacks a coherent design or demonstrates fundamental misunderstandings of API principles. | Descriptors: Solution attempts to address requirements but exhibits significant architectural flaws or inefficient approaches. Minimal consideration for scalability or maintainability. | Descriptors: Solution effectively addresses requirements with a clear, logical architecture. Shows good understanding of API design principles. Reasonable consideration for future expansion. | Descriptors: Solution is elegant, highly efficient, and demonstrates deep understanding of the problem space. Architecture is scalable, maintainable, and highly extensible, anticipating future needs. | | | Indicators: No clear data model; endpoints expose database internals; no clear separation of concerns between layers. | Indicators: Business logic mixed with presentation; database queries within view functions; ORM used inefficiently. | Indicators: Clear separation of concerns (e.g., controllers, services, models); appropriate use of ORM; clear API endpoint design. | Indicators: Adherence to SOLID principles; thoughtful use of caching or message queues if appropriate; robust data validation strategy. | | 4. Documentation & Communication | Descriptors: Documentation is absent, incomplete, or highly confusing. No instructions for setup or usage. | Descriptors: Basic README exists but lacks crucial information or is poorly organized. API endpoints are documented minimally. | Descriptors: Comprehensive README with clear setup, usage instructions, and API endpoint details. Design choices are briefly explained. | Descriptors: Exemplary documentation, including clear setup, detailed API reference with examples, and insightful explanations of design rationale and trade-offs. Includes clear testing instructions. | | | Indicators: No README file; comments are sparse or unhelpful. | Indicators: README has broken links; missing environment variable instructions; API endpoints described ambiguously. | Indicators: Clear "How to Run" section; documented API endpoints with request/response examples; explains why Flask/FastAPI was chosen. | Indicators: Postman collection or OpenAPI spec included; architectural diagrams; clear explanation of error handling philosophy. |