Split User Stories

[jabrena]

• https://github.com/jabrena/cursor-rules-java/blob/main/examples/requirements-examples/problem1/requirements/US-001_God_Analysis_API.md

Yes, this US could definitely be split. It’s currently a “god story”—it tries to do too much in one piece of work. Here’s how I’d split it:
Potential splits:

1. Data Source Integration (Foundation)
   ∙ US-001a: “As an API consumer, I want to fetch gods from a single Greek API so that I have access to the source data”
   ∙ US-001b: “As an API consumer, I want to fetch gods from Roman and Nordic APIs so that I have cross-pantheon data”
   These could be done sequentially, establishing the pattern with Greek first, then expanding to other sources.
2. Filtering Logic
   ∙ US-001c: “As a data analyst, I want to filter gods whose names start with ‘n’ (case-sensitive) so that I can focus on a specific subset of the data”
   This is independent and testable on its own.
3. Transformation/Encoding
   ∙ US-001d: “As a data analyst, I want to convert god names to their Unicode decimal representation so that I can aggregate numerical values across pantheons”
   This decouples the encoding logic from filtering.
4. Aggregation
   ∙ US-001e: “As a data analyst, I want to sum the decimal representations of filtered god names so that I get a single aggregate value for analysis”
5. Error Handling / Resilience
   ∙ US-001f: “As an API consumer, I want timeouts on individual data sources to be handled gracefully so that calculations proceed with available data even if one source is slow”
   This is a cross-cutting concern worth isolating.
6. Configuration
   ∙ US-001g: “As an operator, I want to override timeout and API endpoint configurations via environment variables so that the system can adapt to different environments”
   Why split?
   ∙ Too many concerns in one story (data fetching, filtering, encoding, aggregation, error handling, configuration)
   ∙ Harder to test independently each transformation step
   ∙ Longer feedback cycle if anything fails—you don’t know what went wrong
   ∙ Sprint flexibility — you can deliver filtering + Greek API in one sprint, add Roman/Nordic in another
   ∙ Clearer acceptance criteria for each story
   The original could reasonably be delivered as US-001a → US-001c → US-001d → US-001e → (US-001f optional), with Roman/Nordic expansion coming later if prioritized differently.​​​​​​​​​​​​​​​​