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Blog posts by Catherine Devlin

ETL: Extract, Transform, Learn

By Catherine Devlin on August 9, 2018

Providing government data to the public almost always requires building a data processing pipeline between its place of origin and the systems that will serve it. Data must be copied, transferred between digital storage formats, reshaped to meet the needs of reporting systems, groomed for readability, and cleansed for accuracy.
data access best practices technical guides lessons learned
An open source tool for easier database testing

By Catherine Devlin on January 13, 2015

18F is dedicated to spreading modern software techniques like rigorous automated testing throughout the federal government; we want to showcase how solid testing enables rapid, high-quality development. When the product is based on a large relational database, this poses a dilemma: the full production dataset is too unwieldy to duplicate to the test and development environments.
testing best practices open source tools you can use modern practices