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Aon Assessment Solutions: Self-Service Admin Platform

Unifying 3 legacy systems into a single, intuitive admin platform that cut out daily IT reliance and gave clients control over their projects.

Aon self-service admin platform — dashboard overview across organisation and project views

Problem

Multiple, Unintuitive Legacy systems

Clients struggled with an unintuitive platform, relying on consultants to fix problems who had to get further IT support to complete everyday tasks. This was due to a Legacy system that had just been maintained and not optimised for admin use.

  • Legacy systems were maintained rather than optimised.
  • Clients found the platform unintuitive, forcing them to rely on Aon consultants.
  • Leadership hesitated to grant clients direct platform access out of fear that a poor experience would drive them to competitors.
  • Each of the 3 legacy platforms used different navigation patterns and conflicting terminology, leaving users constantly lost.

Goal

Self-Serve our Users for core tasks

Build a self-service platform for core admin tasks without losing any legacy functionality, that also reduced the amount of IT support required

Result

Confidence, independence and time saved

For those core task previous requiring IT support or external help. Admins and clients felt confident to complete them independently saving them hours of time spent waiting around for IT support.

Super Admin

who were constantly interrupted to fix basic errors or perform routine setups need a streamlined environment where complex system configurations can be executed reliably without requiring IT intervention.

Super admin dashboard with organisation overview and quick actions

Consultants

who were acting as manual middle-men between the clients and the system need a project management workspace to monitor client estates, spin up projects, assist clients without the need for IT support.

Consultant project dashboard with participant insights and shortlists

Clients

who were hesitant to access the platform, lacked visibility into candidate progress and had to rely on consultants for updates need a self-service dashboard to monitor participant progress, review candidate reports, and make confident hiring decisions independently.

Client participants table with scores, ratings, and progress indicators

Design Pillars

Role based views

Super admins get access to further system settings and an overview across all clients served. Consultants get configuration tools and overview of client estates. Clients see overviews of projects they have access to.

Design Pillars

Unified Vocabulary

Reconciled inconsistent taxonomy across all three legacy platforms as well as remove the unnecessary technical jargon.

Design Pillars

Intuitive Navigation

Allow wayfinding to be simple and intuitive to remove endless searching for a tool or piece of information.

Unified Vocabulary and Intuitive navigation

Merging three platforms meant reconciling three conflicting menu structures and sets of vocabulary. Discovery of how to do this included conducting Tree testing and card sorting activities

Information architecture sitemap from card sorting and tree testing
Before and after comparison of the redesigned side navigation

Personalised Dashboards

Core information was scattered across screens so we built a central home dashboard where users can manage projects at a glance, with the ability to delve into project data when needed.

Organisation dashboard with quick actions and project overview
Project dashboard with participant insights and shortlist management

Candidate completion tracking

Determining the right candidates was not clear, so we designed a clear table to display key candidate results that determine whether an applicant moves forward in the process.

Participants table with completion status and key assessment results
Candidate detail panel with overall rating and assessment metrics

Trade Offs

Rather than rebuilding the entire platform, we prioritised the admin workflows that would unlock the most independence — shipping an MVP that proved value before expanding scope.

Results and Key takeaways

Usability testing showed a clear lift in self-service adoption, admin clarity, and day-to-day efficiency. Consolidating three legacy systems into one cohesive experience reduced IT support dependency while preserving critical functionality.