In Lean Software Development, Mary and Tom Poppendieck show us how to use object-oriented design to create real options. Here are three of the eleven concepts.
Use modules: Information hiding, or behavior hiding, is the foundation of object-oriented approaches. Delay commitment to the internal design of the module until the requirements of the clients on the interfaces stabilize.
Use interfaces: Separate interfaces from implementations. Clients should not depend on implementation decisions.
Use abstractions: Abstraction and commitment are inverse processes. Defer commitment to specific representations as long as the abstract will serve immediate design needs.
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