Fastweb + Vodafone uses Gemini to generate code documentation and power a developer chat interface on Spanner
Fastweb + Vodafone· ItalyGemini · SpannerFastweb + Vodafone, an Italian telecom provider, uses Gemini to generate documentation directly from code for under-documented legacy services. The output is stored in Spanner as vector embeddings to form a searchable knowledge base, and a Gemini-powered chat interface lets developers ask natural-language questions about code. The source describes this as part of rebuilding its Customer 360 platform on Spanner and BigQuery and gives no quantified result for the Gemini workflow.
Overview
Fastweb + Vodafone, an Italian telecom provider, uses Gemini to generate documentation directly from code for under-documented legacy services. The output is stored in Spanner as vector embeddings to form a searchable knowledge base, and a Gemini-powered chat interface lets developers ask natural-language questions about code. The source describes this as part of rebuilding its Customer 360 platform on Spanner and BigQuery and gives no quantified result for the Gemini workflow.
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Inspect the highlighted sourceThe challenge
Many services at Fastweb + Vodafone had limited documentation, especially older systems that had evolved over time, across a large and varied codebase.
The solution
Gemini generates documentation directly from code. The output is stored in Spanner as vector embeddings, creating a searchable knowledge base, and a Gemini-powered chat interface lets developers ask natural-language questions about the code.
Reported business value
The source says the workflow saves hours of manual work, reduces time spent deciphering legacy logic or chasing subject-matter experts, and speeds up onboarding. It gives no quantified result for the Gemini workflow.
Sources
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