Agile Software Development

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Rapid application development (RAD) is a software development methodology that uses minimal planning in favor of rapid prototyping.

The "planning" of software developed using RAD is interleaved with writing the software itself.

The lack of extensive per-planning generally allows software to be written much faster, and makes it easier to change requirements.

Rapid Application Development -

Four phases of RAD - Requirements Planning phase " combines elements of the system planning and systems analysis phases of the Systems Development Life Cycle (SDLC)

Users, managers, and IT staff members discuss and agree on business needs, project scope, constraints, and system requirements.

It ends when the team agrees on the key issues and obtains management authorization to continue.

User design phase " during this phase, users interact with systems analysts and develop models and prototypes that represent all system processes, inputs, and outputs.

The RAD groups or subgroups typically use a combination of Joint Application Development (JAD) techniques and CASE tools to translate user needs into working models.

User Design is a continuous interactive process that allows users to understand, modify, and eventually approve a working model of the system that meets their needs.

Construction phase " focuses on program and application development task similar to the SDLC.

In RAD, however, users continue to participate and can still suggest changes or improvements as actual screens or reports are developed.

Its tasks are programming and application development, coding, unit-integration and system testing.

Cutover phase " resembles the final tasks in the SDLC implementation phase, including data conversion, testing, changeover to the new system, and user training.

Compared with traditional methods, the entire process is compressed.

As a result, the new system is built, delivered, and placed in operation much sooner.

The following were incorrect answers: Agile Development - Agile software development is a group of software development methods based on iterative and incremental development, where requirements and solutions evolve through collaboration between self-organizing, cross-functional teams.

Software prototyping- Software prototyping, refers to the activity of creating prototypes of software applications, i.e., incomplete versions of the software program being developed.

It is an activity that can occur in software development and is comparable to prototyping as known from other fields, such as mechanical engineering or manufacturing.

Component Based Development - It is a reuse-based approach to defining, implementing and composing loosely coupled independent components into systems.

This practice aims to bring about an equally wide-ranging degree of benefits in both the short-term and the long-term for the software itself and for organizations that sponsor such software.

The software development methodology that uses minimal planning and favors rapid prototyping is Rapid Application Development (RAD).

RAD is an iterative and incremental approach that emphasizes collaboration and the rapid creation of working software prototypes. RAD projects are typically broken down into small, manageable pieces or modules that can be developed and tested quickly. This approach allows for frequent feedback from stakeholders, which helps to ensure that the software meets the needs of the users.

Unlike traditional software development methodologies that rely heavily on detailed planning and documentation, RAD focuses on delivering working software prototypes quickly and making changes based on feedback. This approach is well-suited for projects that require a high degree of flexibility and where the requirements are subject to change.

Agile Development is also an iterative and incremental approach to software development that emphasizes collaboration, flexibility, and the delivery of working software. However, Agile places a greater emphasis on planning, testing, and continuous integration than RAD.

Software Prototyping is a technique that involves creating a preliminary version of a software system in order to test and refine its functionality. Prototyping is often used in conjunction with other development methodologies, such as RAD or Agile.

Component-based development is an approach to software development that involves the creation and reuse of modular software components. This approach can help to reduce development time and improve the overall quality of the software. However, component-based development still requires a significant amount of planning and design work upfront.

In conclusion, the software development methodology that uses minimal planning and favors rapid prototyping is Rapid Application Development (RAD).