Evaluation framework
DECIDE is a framework that is used to guide evaluation
D – Determine the goals the evaluation addresses
E – Explore the specific questions to be answered
C - Choose the evaluation paradigm and techniques to answer the questions.
I - Identify the practical issues.
D - Decide how to deal with the ethical issues.
E - Evaluate, interpret and present the data
1. D – Determine the goals of evaluation
There are four goals of evaluation
a. To understand real world i.e. understand how users employ technology in the real
World and how designs can be improved to fit the work environment better.
b. To enable choose the best alternative of the various designs
c. To enable if the product being made is of the required standards by the users
d. To determine if the target of our project is good enough
2. E – Explore the specific questions to be answered
a. What is the purpose of the product? The purpose of this product is to bring together several bookshops under one site so that it can be easy to search for books and buy the books in the same site
b. Who will be the users/stakeholders? The users will be the customers, the suppliers, the bookshop owners, the advertisers and also the owners of the site.
c. How is it than better than previous interface? The project is better than previous interfaces because we came to capture all the user needs and wants.
d. What are the users attitude towards the website? The users were very responsive to the website because they saw that the site was saving time and also money.
3. C - Choose the evaluation paradigm and techniques to answer the questions.
This looks at how the data is analyzed and presented
a. Quick and dirty – designers informally get feedback from users or constants to confirm that their ideas are in-line with users’ needs and are done any time.
b. Predictive evaluation – experts apply their knowledge of typical users to predict usability problems. Users need not to be present.
c. Usability testing – the performance of the typical users is recorded, the users are watched on video, evaluation on the users is done, user satisfaction is done lastly
d. Field studies – this is done in the natural settings to understand what users do naturally and how technology impacts no them.
The paradigm that was used was quick and dirty because the users were involved in every step of the design process and it is usually done at any time.
4. I - Identify the practical issues.
You are going to look at some of the things like
How to select users
How to stay on budget
How to stay on schedule
How to find evaluators
How to select equipment
5. D - Decide how to deal with the ethical issues.
a. The users will have the privacy of their private information and will not be disclosed to any one unless with the consent of the user
b. The users will be able to leave the site at any time that they wish i.e. they can be able to discontinue their membership at their own wish
c. The user will be treated politely but they have to follow the rules and regulations of the website.
d. The users will have the right to know the goals of the study
6. E - Evaluate, interpret and present the data
The data is analyzed and interpreted using the quick and dirty paradigm and technique.
The findings can be generalized on our part the evaluation was both formative and summative.
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