The impact of developing an accessible web site in SharePoint 2007

The development process of a typical Web Content Management solution based on Microsoft Office SharePoint Server 2007 consists of three main areas: User Experience, Functionality and Deployment. SharePointSolution The development process begins mostly with designing the total User Experience. Based on the business requirements the designers determine the particular areas on the web site and the corresponding functionality. The typical products of this stage are the User Interface (UI) design and the Interaction design – the way the UI responds to the user input. The next stage is translating the User Interface into code: HTML, Cascade Style Sheets (CSS) and JavaScript (if any client-side interaction required). As the products of this cycle form the baseline for the solution to be delivered it is crucial to name all the requirements of the total product and in particular the accessibility aspects. During the last stage of the User Experience phase the translated User Interface is being incorporated into SharePoint 2007. At this moment the Master Pages and Page Layouts are being formed and the content areas and the Web Part Zones are being determined and placed within the Page Layouts. In many cases the User Interface incorporated in SharePoint 2007 is being hand over to the developers who are going to fill it with the dynamic controls they are going to build. Using the original User Experience translations the developers start their work. First of all basing on the original User Experience they design the look & feel and the behavior of the dynamic control and Web Parts. Then they take the pieces of the User Interface translation and incorporate them within the custom controls. As soon as the development stage is finished and the whole solution has been tested, it is being prepared to be deployed on various environments such as test or production. The decision of developing an accessible WCM solution based on SharePoint 2007 has a major impact on the development process. The affected areas have been marked orange (product independent) and green (requires product specific knowledge) on the figure below. SharePointSolutionAccessibility First of all the designers have to take accessibility into consideration while designing the User Interface. Drop down menu’s dependant on JavaScript and mouse centered interface for example can lead to a totally inaccessible web site. Choices like these can have major impact on the overall accessibility of the web site and the presented information therefore they need to made very carefully and according to best practices for developing accessible web sites. The products made during the translation stage form the baseline for the whole web site. The accessibility of the information depends on the quality of the delivered code. That is why it is crucial to be sure that the right patterns and practices have been chosen to translate the drawing into code. The translation can also have impact on the total performance of the web site therefore it definitely shouldn’t be underestimated. During the incorporation of the translated User Interface into SharePoint the designers are very likely to face many of the undocumented features of SharePoint 2007. Originally SharePoint’s interface is table-based and my experience shows that even a little alteration can have impact on the SharePoint engine. If made carefully the decisions taken at this point can make the development stage easier and can guarantee very high level of accessibility. The developers are responsible for designing and developing custom controls which in many cases present dynamic content. Many of these developers are .NET developers with some SharePoint experience and very little to none accessibility knowledge. At this stage the web site has the biggest risk of getting inaccessible. Because of the little accessibility knowledge the most developers have, they are not able to estimate the impact of their choices on the accessibility aspects of a web site.

Technical Challenges

Microsoft Office SharePoint Server 2007 is built upon the ASP.NET 2.0 framework. In many aspects it enriches this platform and extends the available functionality. Unfortunately the dynamic interface and the extensibility have major impact on the standards compliance and the rendered output. Challenges The figure above presents various areas of custom development within ASP.NET 2.0 and SharePoint 2007. The green areas are the one which are fully controlled by the developers. The orange areas are the challenges that the developers will face while trying to deliver an accessible SharePoint 2007 solution. Though the impact on the accessibility depends on the particular area, all of them are required to make a web site fully accessible. The last piece – the Editors Area is left unaltered because it has no influence on the accessibility of the public side of a web site - the area you will focus on most of the times. Once again developing an accessible web site in SharePoint 2007 is doable yet very challenging. It requires understanding of the accessibility guidelines, SharePoint 2007 and ASP.NET 2.0 internals and accessibility issues within the both platforms.


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