HCI

Human Computer Interaction

ASDA Vs TESCO Introduction

The visibility of a product or service is enabled using the internet technologies and primarily the websites . The design and look and feel are the prime aspects which make sure that all the various objectives are accomplished to a large length . The focussed features of a website make sure that all the aims are quite distinguishable for making an impact

A critical appraisal of Tesco and Asda website was conducted providing a benchmark for our client . The sites key characteristics were identified it

was found many were inter-related . Design for instance demonstrably fitted context of use , considered crucial to online success . It was found usability is an important concept , successfully related to navigation , content and layout . This is identified in the body of the report and in the Heuristic Evaluation , observation , questionnaires and Cognitive Walkthrough

Asda can be easily found as below

HYPERLINK "http /www .asda .co .uk /corp /home .html http /www .asda .co .uk /corp /home .html

Tesco can be easily found as follows

HYPERLINK "http /www .tesco .com " http /www .tesco .com

Evaluation criteria

The foremost criteria for taking up this effort are to find out the best possible distinguishable feature among them . Faulkner (1997 ) mentions that quite a lot of intractability and comfortableness can be achieved if one can locate the items they are searching for quite distinguishably . The maximum benefits can be derived from the investigation of the following aspects

System appeal

Usability

Learn ability

Acceptability

Efficiency

Figure SEQ Figure \ ARABIC 1 : Asda .com FrontPage

Figure SEQ Figure \ ARABIC 2 : Tesco .com Website FrontPage

Evaluation techniques

The evaluation of the various criteria 's laid above the following evaluation techniques would be taken into understanding for the exact catering of the scenarios and the very derivation of the correct methodology and techniques for making the right impact . Plaisant (2005 and Horton (2005 ) claims that various use of methods make sure that all the penetrations are evolved quite well and must be there for the derivation of various attitudes . The following are the various methodologies that are accounted for serving the various interests

Heuristic evaluation : This method as informal in nature as the usability analysis would rest in the hands of evaluators at the interface design only (Nielsen Molich , 1990 . The various rules used are often not at the knowledge of the evaluators and the decision is often clouded with prejudices and biasness . One can briefly go through every heuristic so that everyone is familiar with them

Observation : This method of data collection is quite realistic in the sense that it is observed as to how one feels and takes the system features . The very actions and behavior are noted and the data analyses are done with respect to various usability and functionality . The various disadvantages are the influence of the observer on the user as she may temp to act in a fair manner to accomplish something which would have been done differently

Questionnaires : This method of...