ITU-T P.851 SPANISH-2003
Subjective quality evaluation of telephone services based on spoken dialogue systems SERIES P: TELEPHONE TRANSMISSION QUALITY TELEPHONE INSTALLATIONS LOCAL LINE NETWORKS Methods for objective and subjective assessment of quality Study Group 12

Standard No.

ITU-T P.851 SPANISH-2003

Release Date

2003

Published By

International Telecommunication Union (ITU)

Latest

ITU-T P.851 SPANISH-2003

Scope

This Recommendation describes subjective evaluation methods providing information about the quality of telephone services based on spoken dialogue systems, as experienced by the users of such services. Spoken dialogue systems addressed by the Recommendation enable a spoken language interaction with a human user via the telephone network on a turn-by-turn basis, and have speech recognition, speech understanding, dialogue management, response generation, and speech output capabilities. They may provide access to information stored in a database, or allow different types of transactions to be performed.

ITU-T P.851 SPANISH-2003 Referenced Document

• ITU-T E.800-1994 Terms and Definitions Related to Quality of Service and Network Performance Including Dependability - Telephone Network and ISDN Quality of Service, Network Management and Traffic Engineering (Study Group II) 56 pp
• ITU-T G.1000-2001 Communications Quality of Service: A Framework and Definitions Series G: Transmission Systems and Media Digital Systems and Networks Quality of Service and Performance Study Group 12
• ITU-T G.107-2003 The E-Model@ a computational model for use in transmission planning Series G: Transmission Systems and Media@ Digital Systems and Networks International telephone connections and circuits - General definitions (Study Group 12)
• ITU-T P.800-1996 Methods for Subjective Determination of Transmission Quality - Series P: Telephone Transmission Quality; Methods for Objective and Subjective Assessment of Quality Study Group 12; 38 pp [Superseded: ITU-T P.80 ITU-T P.80]
• ITU-T P.85-1994 Method for Subjective Performance Assessment of the Quality of Speech Voice Output Devices - Telephone Transmission Quality Subjective Opinion Tests Study Group 12; 13 pp

ITU-T P.851 SPANISH-2003 history

• 2003 ITU-T P.851 SPANISH-2003 Subjective quality evaluation of telephone services based on spoken dialogue systems SERIES P: TELEPHONE TRANSMISSION QUALITY TELEPHONE INSTALLATIONS LOCAL LINE NETWORKS Methods for objective and subjective assessment of quality Study Group 12