Sandi Metz Quotes & Sayings

If lack of a feature will force you out of business today it doesn't matter how much it will cost to deal with the code tomorrow; you — Sandi Metz

Agile processes guarantee change and your ability to make these changes depends on your application's design. — Sandi Metz

depend on things that change less often than you do. — Sandi Metz

When the future cost of doing nothing is the same as the current cost, postpone the decision. Make the decision only when you must with the information you have at that time. — Sandi Metz

Designs that anticipate specific future requirements almost always end badly. — Sandi Metz

Persist. Practice. Experiment. Imagine. Do your best work, and all else will follow. — Sandi Metz

Every dependency is like a little dot of glue that causes your class to stick to the things it touches. — Sandi Metz

Instead of deciding on a class and then figuring out its responsibilities, you are now deciding on a message and figuring out where to send it. This transition from class-based design to message-based design is a turning point in your design career. — Sandi Metz

Conveying information that a method is stable or unstable is one thing; attempting to control how others use it is quite another. — Sandi Metz

The general rule for refactoring into a new inheritance hierarchy is to arrange code so that you can promote abstractions rather than demote concretions. — Sandi Metz

A dependency on a private method of an external framework is a form of technical debt. Avoid these dependencies. — Sandi Metz

The problem is not one of technical knowledge but of organization; you know how to write the code but not — Sandi Metz

Novice programmers don't yet have the skills to write simple code. — Sandi Metz

Successful (working) but undesigned applications carry the seeds of their own destruction; they are easy to write, but gradually become impossible to change. — Sandi Metz

The first way design fails is due to lack of it. — Sandi Metz

Your application needs to work right now just once; it must be easy to change forever. — Sandi Metz

You don't send messages because you have objects, you have objects because you send messages. — Sandi Metz