Phase 4: Implementation

During implementation there is sufficient room for further testing. Respondents are provided with the opportunity to evaluate final little amendments. Apart from that 'the experience in its entirety' with regard to the relevant dimensions usability, utility, emotions, design, and brand relation of the interface is under the microscope.

Further testing may be useful even if a product is already being implemented. Prototypes that describe the entire interface as regards the look & feel serve as test material. A small number of participants may already deliver valuable information concerning critical functional structures or rather, design elements.

Depending on the test method, among others, the following questions can be clarified:

Where do persistent problems of use occur?
How does the product as a whole impress the users?

In Phase 4, the following methods are predominantly used:

Competition Analysis Compares the products of major competitors with the own ones with regard to common usability dimensions.	Expert Review Neutral experts assess an interface.	Eye Tracking Eye Tracking enables to map the users' scanpaths and create "hotspot images" which show how much attention is paid to which areas of the interface.
Field Studies Participants use test objects over a longer period of time, e.g. settop boxes, mobile phones, etc.	Remote Testing Website users test internet pages at home or at the workplace.	Market Analysis Regular observation of web sites provides decision aids for adaptation to your strategy.
Online Research Data acquisition via the internet - highly suitable for international user groups or those that are difficult to reach.	Online Survey Accompanies user experience testing to clarify requirements and measure user experience.	User Experience Testing Through observation and enquiry we explore the positive and negative experiences had whilst using the interface. In focus: Usability Problems.

Depending on the project, further usability methods may be useful.