Basic Principles of object-oriented design-excerpt

Single Responsibility Principle-- SRP

Open and closed Principle-- OCP

LiskovReplacement Principle --LSP 

Dependency inversion principle-- Dip 

Interface isolation principle-- ISP 

Package Design Principles

Reuse release Equivalence Principle(REP)

The granularity of reuse is the publishing granularity.

Principle of mutual Closure(CCP)

All classes in the package should be closed for changes to the same class nature. If a change affects a package, it will affect all classes in the package, without affecting other packages.

No-environment dependency Principle(ADP)

The package dependency graph does not allow loops.

Stable dependency Principle(SDP)

Dependency in a stable direction

Stable abstraction principles(SAP)

The abstraction level of the package should be consistent with its stability.