Case Studies | SaaS B2B

Semantic article search for a specialist media title

Semantic Article Search

About

A SaaS B2B business working with Cloud Combinator on AWS. The client is anonymised at their request.

Challenge

The proof of concept had four focus areas, each shaping how readers would experience the new search.

Understanding intent, not keywords

Traditional site search matches words, not meaning. Readers needed to submit a natural query and receive genuinely related articles, with a low-latency experience even at peak usage, so the archive felt navigable rather than overwhelming.

Serving different kinds of reader

A skim reader, an in-depth researcher and a full-article consumer want very different responses to the same query. The system had to tailor its answers to three distinct reader archetypes so results consistently matched how each person reads.

Keeping it premium

The feature is for paying subscribers only, so access had to be gated with no leakage to free users. That required federated identity and role-based access enforced at the application, with no false positives.

Handling data responsibly

Subscriber data and the indexed archive had to be handled in full alignment with GDPR, with auditable data flows, encryption and secure storage for every indexed article.

Solution

The client articles are ingested from WordPress into an Amazon S3 repository, split into article content and metadata such as category, author and publish date, with automatic syncing so new and updated content flows in. That bucket is the primary data source for an AWS Q Business application, which indexes the corpus for semantic retrieval within the London region.

3

Reader archetypes served by tailored prompts

3+

Related articles surfaced per query (projected)

2,000

Premium subscribers the feature is gated to

By the numbers:

  • 3 - Reader archetypes served by tailored prompts
  • 3+ - Related articles surfaced per query (projected)
  • 2,000 - Premium subscribers the feature is gated to
Changes

The proof of concept demonstrates that AWS Q Business can deliver intent-aware, premium-gated article discovery over the client's archive, with acceptance measured against the project success criteria and the AWS environment shown to be suitable for continued development. The performance and relevance targets below are proof-of-concept success criteria, validated through sample testing.

  • Intent-aware discoveryAWS Q Business semantic search returns three or more genuinely related WordPress articles per query, with relevance validated by sample testing.
  • Tailored to how people readThree persona prompts, skim reader, in-depth researcher and full-article consumer, so responses match reader intent.
  • Premium gatingIAM Identity Center federation and role-based access restrict the feature to premium subscribers, with no leakage to free users.
  • Compliant by designGDPR-aligned data handling with encrypted, access-logged S3 storage for the indexed archive and CloudTrail auditing of data flows.
  • HandoverCloudFormation templates, system prompt files, IAM role definitions and architecture diagrams, closed out with a live demo.

With the proof of concept proving out the architecture, the client has a validated AWS foundation to move semantic search into production and build further reader-facing intelligence on top of its archive.

AWS Stack

AWS Q Business

For large-language-model semantic search over the article corpus.

Amazon S3

For the indexed WordPress article and metadata repository.

AWS IAM Identity Center

For federated, premium-only access control.

Amazon VPC

For network isolation across Q Business, S3 and related services.

AWS CloudTrail

For auditing of access and data flows to support GDPR alignment.

AWS CloudFormation

For repeatable, documented infrastructure at handover.

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