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CMb 2005–16
Don't finalise the site structure until you've created page layouts
by Iain Barker
Published on 5 September 2005
There is a worrying trend emerging in the field of information architecture: organisations are attempting to finalise site structures without
evaluating their effectiveness in the context of a web page.
Card sorting and card-based classification provide excellent insights into the inherent structure behind content. Both are excellent tools for
defining strict taxonomies, but they do not necessarily generate the most approachable structure for a site. Content centred design is not
necessarily user centred design.
The site structure should be considered in context
Browser windows impose many limitations, one of the most obvious is space. Failure to consider the reality that the site structure must function in the context of a browser window, can result in the following problems:
- The site structure has too many top-level headings
Horizontal navigation only allows for around eight top level headings. Vertical navigation allows for slightly more headings.
- Heading titles are too long
Descriptive heading titles are best, but the limited space on a web page (particularly horizontally) means that compromises often need to be made.
These factors mean that the site structure derived from abstract exercises, such as card-based classification evaluation, may not successfully
transfer to the web.
Structure isn't the only way people navigate sites
The site structure is only one of many factors that influence how people navigate a site.
Finalising the site structure without considering the potential impact of these factors can result in an unnecessarily bloated site structure.
Take an iterative approach
The best solution is to take an iterative approach to defining the site structure and page layouts.
- Conduct card sorting sessions to understand how representative users perceive the inherent structure behind the proposed content.
- Create a draft site structure.
- Evaluate the draft site structure using card-based classification evaluation.
- Revise the site structure so it works as a navigation system within the confines of a web page.
- Create further page layouts to support user scenarios. Consider the role of information scent, deep links and related content.
- Evaluate the page layouts, ideally through usability testing.
- Continue to prototype, evaluate and revise the site structure and page layouts until you are happy with the results.
At the end of this process you should finalise and document the site structure and page layouts.
Don't stop doing card sorting and card-based classification evaluation
The intention of this article isn't to stop people conducting card sorts and card-based classification evaluations. These are excellent
techniques for understanding how different people perceive the inherent structure behind content, but they do not consistently produce effective
site structures.
(For an overall methodology for developing or redeveloping an intranet, see the
Intranet Roadmap.)
Printed version of this article (PDF)
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