Software Development on Rusty Eddy

Software is Hard

Fri, 22 May 2026 00:00:00 +0000

A section opener explaining why software projects drift and how use cases, Kanban, testing, review, and release discipline make them predictable.

Use Cases

Fri, 27 Sep 2024 00:00:00 +0000

Why Use Cases?

Before writing a single line of code, we need to understand what we are building — and more importantly, why someone would use it. Use cases give us that foundation.

A use case is a single, focused story that describes one way a user achieves a specific goal with the system. Keep them in plain language, from the user’s point of view, with no technical jargon. A good use case has a clear success condition: you can observe or measure when it worked.

Use Cases to Tasks

Thu, 26 Dec 2024 00:00:00 +0000

A use case describes value from the user’s point of view. A task describes a piece of work a developer can finish. Confusing those two is one of the fastest ways to turn a software plan into a vague backlog.

In Use Cases we turned Kelly’s watering-system story into a focused use case:

As a gardener, I want my system to periodically measure soil moisture and turn on a water pump when the soil is dry, then turn it off when it gets wet enough.

Organizing Software Projects with Kanban

Fri, 22 May 2026 00:00:00 +0000

A practical guide to using Kanban cards, WIP limits, task sizing, and exit criteria to keep software projects visible and predictable.

Version Control Systems

Fri, 22 May 2026 00:00:00 +0000

A practical guide to using Git history, branches, pull requests, and tags as the permanent record of a software project.

Test Driven Software Development

Fri, 22 May 2026 00:00:00 +0000

A practical guide to test-driven development and the role of unit, integration, system, and acceptance tests in a reliable release process.

Peer Reviews

Thu, 21 May 2026 00:00:00 +0000

A practical guide to code review: what authors should prepare, what reviewers should check, and how pull requests fit into release quality.

Wireframes and Storyboards

Thu, 21 May 2026 00:00:00 +0000

A practical guide to using storyboards for user flows and wireframes for screen decisions before implementation begins.

Release Process

Thu, 21 May 2026 00:00:00 +0000

A practical release process for turning reviewed and tested code into versioned, recoverable software artifacts.

Fixed-Point Numeric Types in Go Financial Software

Fri, 22 May 2026 00:00:00 +0000

A practical guide to fixed-point arithmetic in Go for prices, money, pips, API boundaries, and trading-system correctness.

The Strategy Pattern in a Backtesting Engine

Fri, 22 May 2026 00:00:00 +0000

A practical design for keeping trading strategy logic portable across backtests and live execution by returning plans instead of touching brokers directly.