measuring the quality of web artifacts n.
Download
Skip this Video
Loading SlideShow in 5 Seconds..
Measuring the Quality of Web Artifacts PowerPoint Presentation
Download Presentation
Measuring the Quality of Web Artifacts

Loading in 2 Seconds...

play fullscreen
1 / 20

Measuring the Quality of Web Artifacts - PowerPoint PPT Presentation


  • 86 Views
  • Uploaded on

Universidad Nacional de La Pampa Universidad Nacional de La Plata Argentina. Web-site QEM. Measuring the Quality of Web Artifacts. MSE Luis Olsina Dr Gustavo Rossi. Goals. Evaluation of Product Quality Web Sites Standard-based Quality Model ISO/IEC 9126 Characteristics

loader
I am the owner, or an agent authorized to act on behalf of the owner, of the copyrighted work described.
capcha
Download Presentation

Measuring the Quality of Web Artifacts


An Image/Link below is provided (as is) to download presentation

Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author.While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server.


- - - - - - - - - - - - - - - - - - - - - - - - - - E N D - - - - - - - - - - - - - - - - - - - - - - - - - -
Presentation Transcript
measuring the quality of web artifacts

Universidad Nacional de La Pampa

Universidad Nacional de La Plata

Argentina

Web-site QEM

Measuring the Quality of Web Artifacts

MSE Luis Olsina

Dr Gustavo Rossi

MSE Luis Olsina - GIDIS - olsinal@ing.unlpam.edu.ar

goals
Goals
  • Evaluation of Product Quality
        • Web Sites
  • Standard-based Quality Model
        • ISO/IEC 9126 Characteristics
        • Customized Subcharacteristics
  • Expert-centered Evaluation
  • Quantitative Evaluation, Comparison and Ranking

MSE Luis Olsina - GIDIS - olsinal@ing.unlpam.edu.ar

motivations
Motivations
  • Evaluation of Web Artifact is a Complex Issue
  • There is not yet a widely recognized Quantitative Methodology to the Web
  • How do we represent and select characteristics and attributes for the Web ?
      • Web artifacts are both document oriented and application oriented
  • Characteristics and attributes can serve as a baseline for new requirements

MSE Luis Olsina - GIDIS - olsinal@ing.unlpam.edu.ar

overview of web site qem
Overview of Web-site QEM

MSE Luis Olsina - GIDIS - olsinal@ing.unlpam.edu.ar

web site qem steps
Web-site QEM Steps
  • The selection of a set of sites (domain specific)
  • The specification of goals and the user view
  • The definition of Web-site quality requirements

MSE Luis Olsina - GIDIS - olsinal@ing.unlpam.edu.ar

web site qem steps1
Web-site QEM Steps
  • The definition of elementary criteria and measurement process
  • The aggregation of elementary preferences to yield the global quality preferences and calculation
  • The analysis of partial and global quality preferences

MSE Luis Olsina - GIDIS - olsinal@ing.unlpam.edu.ar

high level characteristics of iso iec 9126
High-level Characteristics ofISO/IEC 9126
  • Usability
  • Functionality
  • Reliability
  • Efficiency
  • Maintainability
  • Portability

MSE Luis Olsina - GIDIS - olsinal@ing.unlpam.edu.ar

high level characteristics usability
High-level Characteristics (Usability)
  • Usability : “A set of attributes that bear on the effort needed for use, and on the individual assessment of such use, by a stated or implied set of users”
  • Sub-characteristics

ISO 9126

      • Understandability
      • Learnability
      • Operability
  • IEEE 1061
  • Understandability
  • Easy of Learning
  • Operability
  • Communicativeness

MSE Luis Olsina - GIDIS - olsinal@ing.unlpam.edu.ar

high level characteristics efficiency
High-level Characteristics (Efficiency)
  • Efficiency: “A set of attributes that bear on the relationship between the level of performance of the software and the amount of resources used, under stated conditions”
    • Sub-characteristics
      • Time behavior
      • Resource behavior

MSE Luis Olsina - GIDIS - olsinal@ing.unlpam.edu.ar

web site characteristics and attributes
Web-site Characteristics and Attributes
  • 1. Usability
    • 1.1 Global Site Understandability
    • 1.2 Feedback and Help Features
    • 1.3 Interface and Aesthetic Features
    • 1.4 Miscellaneous Features
  • 4. Efficiency
    • 4.1 Performance
    • 4.2 Accessibility

MSE Luis Olsina - GIDIS - olsinal@ing.unlpam.edu.ar

web site usability
Web-site Usability
  • 1. Usability
  • 1.1 Global Site Understandability
      • 1.1.1 Global Organization Scheme
        • 1.1.1.1 Site Map
        • 1.1.1.2 Alphabetical Index
        • 1.1.1.3 Table of Content
      • 1.1.2 Quality of Labeling System
      • 1.1.3 Guided Tour
        • 1.1.3.1Conventional Tour
        • 1.1.3.2 Virtual Tour (*)
      • 1.1.4 Floor and Room Image Map

MSE Luis Olsina - GIDIS - olsinal@ing.unlpam.edu.ar

specifying the table of content attribute
Specifying the Table of Content Attribute

MSE Luis Olsina - GIDIS - olsinal@ing.unlpam.edu.ar

specifying the quick access pages attribute
Specifying the Quick Access PagesAttribute

MSE Luis Olsina - GIDIS - olsinal@ing.unlpam.edu.ar

elementary quality preferences for the museum case study
Elementary Quality Preferencesfor the Museum Case Study

MSE Luis Olsina - GIDIS - olsinal@ing.unlpam.edu.ar

scoring models
Scoring Models
  • Additive Linear Model (T.Gilb)

Global indicator or score =  (component weight x elemental indicator)

  • Logic Scoring of Preference Model (J. Dujmovic)

Weighted Power Mean

      • Simultaneity
      • Replaceability,
      • Neutrality,
      • Symmetric and Asymmetric Relationships

MSE Luis Olsina - GIDIS - olsinal@ing.unlpam.edu.ar

lsp model logic operators
LSP Model - Logic Operators

MSE Luis Olsina - GIDIS - olsinal@ing.unlpam.edu.ar

lsp model aggregation mechanism
LSP Model - Aggregation Mechanism

MSE Luis Olsina - GIDIS - olsinal@ing.unlpam.edu.ar

final ranking for the museum case study

Metropolitan

Louvre

Prado

National Gallery of Art

Final Rankingfor the Museum Case Study

MSE Luis Olsina - GIDIS - olsinal@ing.unlpam.edu.ar

benefits of web site qem
Benefits of Web-site QEM
  • It allows the Understanding
    • Evaluate the state-of-the-art of Operative Web sites
      • Absent Sub-characteristics and Attributes
      • Design Problems (Interface, Navigation, Content, Performance, ...)
      • Requirements Poorly Implemented
    • State and control Quality Requirements to New Projects
  • It allows to give Recommendations
  • It allows the Improvement

MSE Luis Olsina - GIDIS - olsinal@ing.unlpam.edu.ar

thank you for the attendance
Thank you for the attendance !

GIDIS (UNLPam)

Grupo de Investigación y Desarrollo en Ingeniería de Software

URL:http://gidis.ing.unlpam.edu.ar

LIFIA (UNLP)

Laboratorio de Investigación y Formación en Informática Avanzada

URL:http://www-lifia.info.unlp.edu.ar

MSE Luis Olsina - GIDIS - olsinal@ing.unlpam.edu.ar