How deeply does API Design Patterns cover flexibility?

Defines flexibility through API and GUI contrasts, stopping short of implementation techniques or detailed compatibility strategies.

Flexibility

As explained in API Design Patterns

Flexibility is the property of an interface that allows users or client code to accommodate changes without losing functionality.

Flexibility is an interface’s ability to accommodate changes without breaking existing use. It matters especially for APIs because client code depends on exact names and request shapes. section 2.2

Renaming an API field

Renaming an API field can immediately break code written against the previous name. By contrast, moving or recoloring a GUI button may frustrate users without making the interface unusable. section 2.2

Table 2.2 Difficulty of changing various interfaces (view table figure)

Flexibility	Audience	Example interface	Change difficulty
Flexible	Private	Internal monitoring console	Very easy
Flexible	Public	Facebook.com	Moderate
Rigid	Private	Internal photo storage API	Difficult
Rigid	Public	Public Facebook API	Very difficult

Compare how audience and interface rigidity combine to determine the difficulty of making changes. section 2.2

How API Design Patterns covers it

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Also explained in

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Object-Oriented Software Design in C++Software flexibility is the ease with which a software system can accommodate new features or changed requirements.
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Practices of the Python ProFlexibility is the capacity of software to be adapted to related or similar tasks.
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Data-Oriented Programming: Reduce software complexityThe degree to which a software system can adapt to changing requirements without requiring changes to its design.
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Machine Learning System DesignFlexibility is the capacity of a system to accommodate changes in models, processing steps, features, interfaces, or implementation technologies.
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Think Like a Software Engineering ManagerFlexibility is the capacity to adapt arrangements, behavior, or decisions to changing needs and circumstances.
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Software Design for Python ProgrammersFlexibility is the ability of software to change its behavior or accommodate new requirements without modifying its core implementation.
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Shipping Go: Develop, deliver, discuss, design, and go againFlexibility is the ability of a software system or development process to adapt to changing requirements, inputs, or operating conditions.
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Simple Object-Oriented Design: Create clean, maintainable applicationsThe capacity of a software design to accommodate variation or alternative implementations without requiring extensive structural changes.

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Related concepts

hardcodingcontrasts with · Hardcoding is embedding fixed values, rules, configuration, or behavioral choices directly in a program or its implementation rather than supplying or deriving them separately.
factoryused by · A factory is a function, method, class, or component that creates and returns objects or other values while encapsulating construction details or selection.
inversion of controlproduced by · Inversion of control is a design principle that delegates application flow, object creation, or dependency selection from application components to an external mechanism or caller.
shotgun surgerycontrasts with · Shotgun surgery is a code smell in which one logical change requires many separate modifications across a software system.
decorator design patternproduced by · The decorator design pattern is a structural pattern that dynamically adds responsibilities or behavior to an object by wrapping it with objects that preserve its interface.
designproduced by · Design is the process of planning and specifying an artifact’s structure, behavior, or presentation, and the resulting arrangement, to meet intended purposes and constraints.

This explainer was generated by Manning's knowledge graph from the text of API Design Patterns. The section links point to the parts of the book it draws on.