Information Architecture
Information architecture, often shortened to IA, is the practice of organizing, grouping, labelling, and connecting information so people can find and understand it.
It describes the logic behind where information belongs rather than the visual design used to present it.
What It Means in Practice
Information architecture helps answer questions such as:
- Which content belongs together?
- What should major sections be called?
- Which topics should be categories or subcategories?
- Where should users expect to find particular information?
- How should people move between related content?
Those decisions influence navigation, taxonomy, site hierarchy, internal links, and search.
How It Differs From a Sitemap
Information architecture is the underlying organizational system.
A visual sitemap is one way to document or communicate part of that system.
The sitemap may show that a Services page contains several audience pages, for example.
The information architecture also includes decisions about why those pages are grouped together, what they are called, and how people should discover them.
Why It Matters
People should not need to understand how an organization works internally in order to find information on its website.
Good information architecture reflects the visitor's mental model rather than simply copying departmental structures, business processes, or internal terminology.
It reduces the amount of guessing required to navigate.
Clear information architecture can also support Website Accessibility by making the hierarchy and available pathways easier to understand.
Common Problems
Common IA problems include:
- Vague labels such as “Solutions” or “Other”
- Organizing content around departments instead of user needs
- Similar information appearing in several sections
- Categories that overlap heavily
- Important information buried unnecessarily deep
- Navigation labels changing between pages
- New sections being added without considering the existing structure
How to Improve
Start with what people are trying to find or accomplish.
Group related information around those needs, choose labels people can predict, and test whether someone unfamiliar with the organization can determine where information belongs.
A visual sitemap can help document the resulting structure.