Nokia SERIES 40 Developer's Manual

Also see for SERIES 40: Quick start guide User guide

Nokia SERIES 40 Developer's Manual Manual pdf 8 page image

WAP Service Developer's Guide for Nokia Series 40Version 1.0Copyright © 2002. Nokia Corporation. All rights reserved. 82.4.4 Choose descriptive card titlesIt is very useful to give a descriptive name for the card. It might be a good idea to start thetitle with your service’s name and to keep the total length of the title short.It also pays to use meaningful URL addresses since the user sees the URL of the currentlyselected link on the screen and can use it as a navigational help, especially when imageshave not been loaded.2.4.5 Pay attention to the first screenThe first (topmost) screen of any page is the most important one. All of the often-usednavigational links, search fields, login screens, and bulk of the information should residethere. The user is then able to navigate forward before the rest of the card has been loaded,and the user does not have to scroll the card.Avoid wasting the top of the page for banner advertisements or non-informative graphics. Itis better to place the advertisements at the left or right edges rather than on the top.2.4.6 Do not use absolute values for the screen sizeWhen using images, the use of absolute values (in pixels) is not recommended. Sizes shouldbe specified as percentages of the total width or height.2.4.7 Usage of do elementsAlways use descriptive and short labels for all do elements. Favour local do elements insteadof anchored links that do not fit into their surrounding context. Global do elements shouldbe used only when especially needed at the end of the card. Always include a prev elementin every card to enable backward navigation.2.5 Pictures and tables2.5.1 Avoid useless imagesDownloading images takes time, and many users may switch off the loading of images formore speed. Try to optimise the size of images. If you have large pictures on your site,consider using thumbnails for the image index.Always give an alternative text (using the alt attribute of the <img> element) for imagesthat convey information. Always use a null alternative text (alt=””) for images that do notconvey information, or are used for page layout or decorative purposes only.2.5.2 Use reasonable table sizesIf the table size exceeds the maximum width of the application screen due to the number ofcolumns, the table size will be scaled down to fit the screen. To keep the cell contentreadable, special attention should be paid to table structuring.