Home

Advertisement

Previous Entry | Next Entry

Jussie

Presenters: Innocent Kihaka and Said H. Said



Introduction:

The topic was prepared and presented by Innocent Kihaka and Said H. Said. The presentation was very good, they extracted well materials relating to the topic and their way of presentation involved much the participations of the audience. On their presentation they discussed the concept of usability engineering and human computer interaction, the significance importance of the topic, how can it be achieved and the challenge..



Contents of the topic:

Through their presentation I leant the following concepts:-
Usability engineering (UE): Is the techniques that refers to the development of interactive system which is usable, useful and that meets the users needs. Usability itself refers to how a machine is easy to use..



Human computer interaction (HCI): Is the discipline that deals with the study of effective communication/interaction between users and computers. Usefulness of a computer refers to efficient in performing certain task. Therefore for an interactive system to be useful it should be goal oriented..



History:

Around 1945 people invested more effort in studying ergonomics (efficiency) of machines. In that era most of computer software and hardware users were computing professionals. As the demand of people in using computers increased, it causes the need on improving the computer interaction system so as to allow even non computer professional to use computer friendly. Human Computer Interaction (HCI) has been developed into a discipline as to foster on the usability and usefulness of a computer..



The reason on having Usability engineering and Human Computer interaction includes:-


  • Increases the productivity through increase of work force since many people can use computer easily.

  • It is cheap to use since needs less training costs to users.

  • Increase the customer satisfaction to their needs.

  • It decreases the fear of use of technology (technophobia) since those who tries they find that is easy.

  • Reduces disastrous and fatal errors in the system which is safety-critical since it can alert and give instructions to any error that is done.


Moreover through their presentation I learnt that there are two approaches that is used in designing products. These are Product-centered design and user centered design. .



Product centered design: In this product design, production process does not take account of user’s needs. Producers request product’s specification from users and there after producers designed and produce products according to the specification. There main target is to see that those products are working regardless of how much difficulties the users are going to get..



In this product design lack of user involvement caused problems such as;
It happens to produce products that are not useful or usable. As a result the approach is abandoned..



User centered:

User centered is the product design that focuses on the user. In this design users plays a great role; they send back the feedback on the usefulness and usability of the produced products and the producer concern much on making innovation..



Criteria of user-centered design:

  • Easy to learn how to use the product and easy to remember how the system works once it has been learned.

  • High efficiency and motivating force that converse the user on proceed using the product.

  • Relative cheap price and affordable for user of various classes to buy.

  • Feedback- interface that respond on whatever is done and give right suggestions.

  • Safety- Protecting the user from dangerous and undesirable situations.


The main assumption that distinct the two product design is that in product centered design; the result of a good design is having a product working while in user centered they say; the result of a good design is a satisfied user..



Challenges:

  • Difficult to develop system that will suit all types of users with their needs; such as the same computer fro blinds, deaf, and other users with such disabilities.

  • Difficulty in getting requirements from users who have no technique expertise .

  • </li>The rapid change of society needs due to technological advancement.</li>
  • High cost to run research for the development of new product.

  • To produce products with high quality and low price.

Conclusion:

UE and HCI are very important for the research, development and use of computer technology. It helps designers, developers and implementers to fully invest on usefulness and usability of the products they produce what people need and easy to use together with having high return value such as efficiency and productivity.

  • Leave a comment
  • Add to Memories
  • Share this!
  • Link

On this blog you you will be provided a place to share on how ICT4D is implemented or can be impleneted in the developing Countries. This will in addition to this discuss on how Research in computer Computer field can bring about the development to the South countries without affecting the relation between North and South Countries

Profile

Jussie
[info]ngimbajl
ICT4D in Developing Countries

Latest Month

June 2009
S M T W T F S
 123456
78910111213
14151617181920
21222324252627
282930