HTTP-NG Web Characterization Group
Metric for Client Characterizations
Jim Pitkow
Xerox PARC

October 25, 1997

Relm

Metric


Basic Facts

Classification of users (educational, home, ISP, or corporate)

Access method of users (LAN, modem, mobile, or wireless)

Number of users, response rate, and attrition rate.

Date and duration of study

Sampling methodology


Distributions

Entire Study¾ User Centric

Number of files transferred per user

Number of unique files transferred per user

Number of pages transfer per user

Number of unique pages transfer per user

Number of sites visited per user

Number of unique sites visited per user

Reoccurrence rates for files, pages, and sites per user

Entire Study¾ Web Centric

Number of embedded images per page

Mime-type percentage breakdown (e.g., html, jpg, ps, etc.)

Protocol percent breakdown (e.g., http, shttp, gopher, etc.)

Number of hyperlinks per page

Sessions¾ General

Number of sessions per user

Sessions¾ Temporal

Length of sessions per user

Inter-session time per user (session to session time)

Length of visits per site per user

Sessions¾ Paths

Length of sessions per user

Stack distance per user

Per Session¾ Temporal

Inter-request time per user (request to request time)

Intra-request time per user (request to render time)

Length of visit per site per user

Per Session¾ Paths

Length of visit per site per user