Hypertext Transfer Protocol
- The role of HTTP in Web Architecture
- Extend uniform interface across the net
- Minimize user-perceived latency
- Enable layered processing
- Enable caching
- Enable extension and evolution
- Already survived a decade of evolution
- 1991-93: HTTP/0.9 [Berners-Lee]
- 1993-97: HTTP/1.0 [RFC 1945]
- 1996-now: HTTP/1.1 [RFC 2068/2616]
