DNV No. 1

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Quality labelling for Web-pages

by

Thomas Mestl

Strategic Research, DNV

DNV No. 2

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Quality aspects on a web page

Browser specific

Download time Download cookies

Broken links

Data and M etadata

Visual Layer

Technical Layer

Data Layer

Presentation Quality

Technical Quality

Data & Information Quality

DNV No. 3

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Quality

Quality is the totality of features and characteristics of a product or service that bear on its ability to satisfy stated or implied needs (ISO 8402 def.).

How to determine the Quality?• by verifying it against stated requirements!• documenting verification results!

DNV No. 4

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Quality of underlying mathematical model:

Verified & documented that e.g.

• model captures the essential behaviour of the system• model predicts correctly in 90 % of the cases

Quality of the software:

Verified that e.g. • software is functioning as specified• software can handle faulty data

General quality information about the Web site:

• Content• Responsible• Contributor verified e.g.each day• Date of last editing & documented• etc.

Quality of technical information: • all links are working• download time • browser dependencies verified e.g. each day• required cookies & documented• etc.

Quality of data set:

Verified & documented that e.g.• data are collected/generated according to specified requirements• data are pre-processed according to specified procedure• data are verified against specified requirements• data are cross checked

DNV No. 5

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Demonstration

byRolf Lindgren

http://dtp340.osl.dnv.com/DNV/