Evolutionary Prototyping Model

Independent, Negotiable, Valuable, Estimable, Small, and Testable

To confirm the user story via pre-written criteria

One to four weeks

<p>Defining and sequencing the work to be done</p> Signup and view all the answers

<p>To achieve a single objective</p> Signup and view all the answers

<p>To keep things organized and remove obstacles</p> Signup and view all the answers

<p>Small, typically completed in 3-4 days</p> Signup and view all the answers

<p>A useful product increment</p> Signup and view all the answers

<p>Customers get early interaction with the system.</p> Signup and view all the answers

<p>It is difficult to plan and determine when the project is completed.</p> Signup and view all the answers

<p>To produce functioning code.</p> Signup and view all the answers

<p>Iterative and incremental development.</p> Signup and view all the answers

<p>It is suitable for application domains that are not well known or have unclear requirements.</p> Signup and view all the answers

<p>Quick prototypes with missing documentation lead to poor performance.</p> Signup and view all the answers

<p>Focus on value.</p> Signup and view all the answers

<p>Refactoring - rewriting code to make it simpler and easier to maintain.</p> Signup and view all the answers

<p>To simplify the code, reducing complexity and improving maintainability and extendability.</p> Signup and view all the answers

<p>Reassigning responsibilities or methods between classes to improve cohesion and reduce coupling.</p> Signup and view all the answers

<p>Conditional expressions.</p> Signup and view all the answers

<p>Complex conditional logic within a program.</p> Signup and view all the answers

<p>Because the code both in the condition checks and in the actions can obscure the underlying reasons.</p> Signup and view all the answers

<p>Easier to understand and maintain code.</p> Signup and view all the answers

<p>To make conditional sections easier to understand.</p> Signup and view all the answers

<p>A more balanced and logical design that is easier to maintain and extend.</p> Signup and view all the answers

<p>To validate a user's password</p> Signup and view all the answers

<p>The rule of descriptive variable names</p> Signup and view all the answers

<p>It violates the Single Responsibility Principle (SRP)</p> Signup and view all the answers

<p>The Single Responsibility Principle (SRP)</p> Signup and view all the answers

<p>It violates the Single Responsibility Principle (SRP)</p> Signup and view all the answers

<p>To find a user by name</p> Signup and view all the answers

<p>To decrypt the password phrase</p> Signup and view all the answers

<p>It is not following the Don't Repeat Yourself (DRY) principle</p> Signup and view all the answers

<p>The <code>readResolve()</code> method is used to return the singleton instance, ensuring that the deserialized instance is the same as the original instance.</p> Signup and view all the answers

<p>Eager instantiation ensures that the instance creation happens at the time of class loading, making it thread-safe.</p> Signup and view all the answers

<p>Lazy initialization delays the instantiation of the Singleton until it is actually needed, which can be beneficial when the initialization is costly.</p> Signup and view all the answers

<p>The <code>getInstance()</code> method is static because it needs to be accessed without creating an instance of the Singleton class.</p> Signup and view all the answers

<p>The <code>hashCode()</code> method is used to get the hash code of the Singleton instance, which can be used to compare instances.</p> Signup and view all the answers

<p>The <code>ObjectInputStream</code> reads the serialized Singleton instance and returns a new instance, which is not the same as the original instance.</p> Signup and view all the answers

<p>Eager initialization creates the instance at the time of class loading, while lazy initialization creates the instance when it is first needed.</p> Signup and view all the answers

<p>The <code>readResolve()</code> method is necessary to ensure that the deserialized instance is the same as the original instance, maintaining the Singleton pattern.</p> Signup and view all the answers