E must meet all criteria	S must meet all criteria	N	U
Behavior	Exhibits correct behavior in all cases, including edge, corner, and error cases	Exhibits correct behavior in all common cases	Exhibits incorrect behavior in some common cases Lacks some required functionality	Behavior does not resemble specification Lacks significant portions of required functionality
Concepts	Most appropriate variant of all language and library features chosen in all circumstances All variables are declared in the most local scope possible Code is properly factored and avoids redundancy and/or unnecessary computation Uses main method pattern in all runnable files All constants are declared correctly and used in all appropriate places Follows assignment-specific guidelines placed on library and language usage	Language and library features used appropriately throughout program All variables are declared in local scope All required language features present and meet requirements No obvious redundancy exists between functions Constants used in all expected places Follows assignment-specific guidelines placed on library and language usage	Library or language features use inappropriately Any global variables used Some required language features missing or do not meet requirements	Key language features not used Not enough code or features present to evaluate effectively Banned or inappropriate language features used
Quality	Docstring comments on modules (Python files), classes, and functions. Comments are well-written and contain all relevant information All identifiers and function names are descriptive and neither too long nor too short Personal style choices are consistent and reasonable with the Code Quality guide Code passes flake8 linter	Docstring comments on modules (Python files), classes, and functions. Comments are well-written and contain meaningful information All identifiers and function names are meaningful and follow prescribed naming conventions Code passes flake8 linter	Docstring comments missing on some modules, classes, and/or functions Some identifier or function names are not meaningful or fail to follow prescribed conventions Indentation or spacing makes code difficult to read or follow Code does not pass flake8	Code shows little or no effort follow code quality guidelines Code is extremely difficult to read and understand
Testing	Test cases are well-written for testing behavior in all cases, including edge, corner, and error cases Minimum redundancy between tests Descriptive names for all test functions	Test program runs with no errrors and warnings All required test cases are present Testing artifacts (e.g., custom data files) are submitted and work with the test program Uses main method pattern for calling each test function Appropriate use of constants when necessary	Some test cases produce errors or warnings Missing required test cases Test functions called outside of main	Missing custom files accompanying test program No tests exist