Glossary¶

ACID

Set of properties that guarantee database transactions are processed reliably. Stands for Atomicity, Consistency, Isolation, Durability.

Atomicity

Atomicity means that database operations are applied following a “all or nothing” rule. A transaction is either fully applied or not at all.

Consistency

Consistency means that each transaction that modifies the database takes it from one consistent state to another.

Durability

Once a transaction is committed, it will remain so.

Foreign Key

A referential constraint between two tables. Example: A purchase order in the purchase_orders table must have been made by a customer that exists in the customers table.

Isolation

The Isolation requirement means that no transaction can interfere with another.

Jenkins

Jenkins is a continuous integration system that we use to help ensure the continued quality of the software we produce. It helps us achieve the aims of:

• no failed tests in trunk on any platform,
• aid developers in ensuring merge requests build and test on all platforms,
• no known performance regressions (without a damn good explanation).