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Where possible, naming conventions should be consistent - after reflecting software-specific requirements or idioms - across all of the artifacts that pertain to a path element, including source code files, schemas, and the like.

References

Normative Guides to Developing RESTful Services

Leonard Richardson and Sam Ruby, RESTful Web Services

Michael Mahemoff, et al., RESTful Service - Ajax Patterns

Brief Introductions to Designing RESTful Services

Joe Gregorio, How to Create a REST Protocol

Joe Gregorio, Show Me the Code

Constructing "Meaningful" URLs for Resources

Aaron Johnson, Clearspace and Meaningful URLs