Step 3 towards user-friendliness: Implementation
In the implementation phase, the first version of the application is programmed, the user interface is implemented, and a better picture of the final product can be formed. In the first phase, the product is probably not good enough to be tested by real end users, but a usability specialist can evaluate the user interface and comment on it from the user’s perspective. This phase is returned to multiple times after the testing phase, until the product meets the requirements set for it. In the other hand, I have lately witnessed success stories where the UI is demonstrated (with Flash prototypes) to potential end-users in the very early stage of development cycle. In these cases, the prototypes have been very effective tools in the hands of UE specialist. So, the users can be a valid source in this phase also.
Consulting: Avoid delays in the development process by asking a usability expert about the implementation of certain features. Costly errors can be avoided with minimal cost.
Guidelines: Find out standard ways of implementing certain methods and make sure the selected methods are not likely to be problems for the users.
Expert analysis: Receive comments on how to improve the user interface and avoid designs that will likely pose problems for the users.
