Structural Design

Information Architecture

A UX practice for organizing, labeling, and structuring information so people can find and use it.

Concept facts

Information architecture is the organization, labeling, and structuring of information so people can find, understand, and use it.

Also known as
IA, navigation structure, content structure.
Used in
Navigation, content models, service directories, portals, knowledge bases, documentation, and complex information systems.
Interpret with
User goals, content scope, mental models, findability, accessibility, cognitive load, and governance.

Plain-language explanation

Information architecture shapes how information is grouped, named, ordered, and connected. Navigation is one visible part of IA, but IA also includes structure, relationships, labels, and content decisions behind the interface.

Good IA helps people know where they are, where to go next, and what a label means.

Why it matters

Poor IA can make a useful service feel unavailable because people cannot find the right path, understand categories, or distinguish similar options.

Use contexts

  • Service and program directories.
  • Public information portals.
  • Help centers and knowledge bases.
  • Account dashboards and multi-step journeys.

Application guidance

Start from user goals and content evidence. Test labels and structures with users where possible. Information architecture may also reflect organizational constraints and content maintenance structures.

Practical example

A public-service portal organizes content by ministry departments, but citizens search by life situations: “lost ID card,” “apply for allowance,” “update address,” or “appeal rejection.”

An information architecture review shows that the official structure is accurate internally but weak for public use. Reorganizing around citizen goals, while preserving policy references, improves findability without removing institutional accountability.

Interpretive boundaries

  • IA is broader than navigation.
  • IA is not only a sitemap.
  • Good IA depends on content quality and governance.
  • IA decisions should be tested when risk or complexity is high.

Applied at Userhub

Information architecture is relevant when Userhub reviews whether service content, navigation, and task paths are organized around how people actually look for and use information.

See Userhub UX Lab for applied UX research and evaluation context.

Sources and references

  • ISO. (2018). Ergonomics of human-system interaction – Part 11: Usability: Definitions and concepts (ISO Standard No. 9241-11:2018). International Organization for Standardization.
  • Rosenfeld, L., Morville, P., & Arango, J. (2015). Information Architecture: For the Web and Beyond (4th ed.). O’Reilly Media.
  • Toms, E. G. (2002). Information architecture: An intersection of usage, organization, and technology. Journal of the American Society for Information Science and Technology, 53(14), 1162-1169. https://doi.org/10.1002/asi.10161

Cite this entry

APA

Userhub. (2026). Information Architecture. UX Reference. https://userhub.com.bd/reference/information-architecture/