Evaluator: Michael Hofmann Age: 23 Sex: male Web Browser and Version: Internet Explorer 6.0 Operating System and Version: Windows XP SP2 Internet Connection (Type and Speed): 3Mbit (Chello) Monitor Colours: 32bit Monitor Resolution: 1280x1024 Monitor Size: 19" Date of Evaluation: 20.04.2006 Time of Evaluation: 10.00-13.00 Positive Impressions -------------------- o Handy Berater Description A nice feature is the "Handy Berater". You have several options from which you can choose if they are important for you or not. After selection the system presents you all mobile phones which are available and which should fulfill your needs. Heuristic: Screenshot: mhofmann-pos01.png o Handy Vergleich Description With this feature you can compare two or three mobile phones. All important characteristics are listed side by side. Screenshot: mhofmann-pos02a.png mhofmann-pos02b.png o Full text search Description The full text search of the site works pretty fine. Heuristic: Screenshot: mhofmann-pos03.png o Shortcuts Description If you are a registered client of ONE you can create your own shortcuts. These are shown in the lower left corner. So you can reach the most important sites for directly by one click. Heuristic: Screenshot: mhofmann-pos04.png Problems -------- o Ads Description The intro site of the ONE portal is overloaded with ads from ONE. Thus it is a little bit difficult to orientate oneself. Especially when you visit the site for the first time. The only thing which is obviously is the login. Heuristic: Aesthetic and Minimalist Design Screenshot: mhofmann-prob01.png o No back buttons Description On many subsites, there are yellow links for further information. If you click there you are often directed to a completly different menu. Then you have no possibility to go back to the site where you were, because there is no back button. You must navigate to the whole menu tree again to return. Heuristic: Reversible Actions Screenshot: mhofmann-prob02a.png mhofmann-prob02b.png o Not possible to refer to a subpage from the outside Description It is not possible to link to a specific subpage from the outside. So it is not possible to send links to special rates for example by email. Heuristic: Flexibility and Efficiency of Use Screenshot: o No submenus under main areas Description If you choose one of the main areas there are no subentries in the menu. The entries are just available through the pop-up menu on the site. Heuristic: Consistency Screenshot: mhofmann-prob3.png o Link visibility Description Sometimes it is difficult to see what is a link and what is no link. Heuristic: Help and Documentation Screenshot: mhofmann-prob4.png o Link is not good visible Description In the section "Handy-Berater", the link to show the models is not easy to see Heuristic: Help and Documentation Screenshot: mhofmann-prob5.png o Links at the bottom of the site Description Some links on the bottom of the site lead to sites with a different layout. It is not possible to return. It would be better if a new window is opened, instead of calling the site in the same window. Links: Smart Space Events Heuristic: Help and Documentation, Reversible Actions Screenshot: mhofmann-prob06a.png mhofmann-prob06b.png o Link to go back to the main site is not very intuitive Description The link to go back to the main site is not marked as link. The link is the big ONE logo in the upper-left corner. Heuristic: Help and Documentation Screenshot: mhofmann-prob07.png o Not comments to file format Description: Help and Documentation, Error Prevention There is no comment, which file format the file to download has. And there is no link to the software which can display this file format. Location: Privatkunden -> Handys & Tarife -> Handy-Assistent -> Anleitungen Heuristic: Screenshot: mhofmann-prob08.png o Not clear who can use which feature Description In the "Kundenservice" area there are many different tools. Some can be used only by people who have an account at the ONE homepage. And others - like the contact forms or the "Betreiberabfrage" - are accessable by everyone. It is not marked which tools could be used by whom. Heuristic: Help and Documentation Screenshot: mhofmann-prob09.png o Fixed font size Description The font size is fixed. It is not possible to make the font size bigger or smaller. Heuristic: Screenshot: mhofmann-prob10a.png mhofmann-prob10b.png mhofmann-prob10c.png o No clear back button Description In the webshop for "Privatkunden" you can click on one of the handys to see more details about the product. The link refers to the "Handymodelle" section. There, the button to return to the webshop is in the yellow info field (One For Me Shop). Heuristic: Help and Documentation Screenshot: mhofmann-prob11.png