Software development methodologies

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Software Development Methodologies

What is Software Development Methodology ?

It is the framework used to plan, control and structure the process of developing the information system.

Software Development is considered a subset of the systems development life cycle.

It includes the pre-definition of deliverables, artifacts created and completed by a project team for development or maintenance of the application.

Software Application Development CompanySource: http://www.computerhope.com

Agile ModelScrum ModelCleanroom ModelLean ModelXPFDD ModelTDD ModelRUP ModelDual Vee Model

Methodologies

Source: http://www.itinfo.am/eng/software-development-methodologies/ Software Application Development Company

• Group of software development methods• Based on iterative and incremental

development• Most important phrases• self-organizing, cross-functional teams• adaptive planning, • evolutionary development and delivery, • a time-boxed iterative approach,• rapid and flexible response to change.

• A conceptual framework

Agile

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• Scrum is an iterative and incremental agile software development framework• It is a flexible, holistic product development strategy and opposite to sequential approach.• In it the Development team works as an atomic unit

Scrum

Source: https://www.cprime.com/resources/what-is-agile-what-is-scrum Software Application Development Company

• The Cleanroom process embeds software development and testing within a statistical quality control framework.

• Mathematically-based software development processes are employed to create software that is correct by design, and statistical usage testing processes are employed to provide inferences about software reliability.

• This systematic process of assessing and controlling software quality during development permits certification of software fitness for use at delivery.

Cleanroom

Source: http://en.wikipedia.org/wiki/Cleanroom_software_engineering Software Application Development Company

It is a translation of lean manufacturing principles and practices

For e.g. Toyota Production System, Today it is a part of Agile community.

Lean (Kanban)

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1. Eliminate waste2. Amplify learning3. Decide as late as possible4. Deliver as fast as possible5. Empower the team6. Build integrity in7. See the whole

Lean Principles

Source: http://scrummethodology.com/ Software Application Development Company

• It improves software quality and responsiveness to changing customer requirements.• It has frequent "releases" in short development cycles.• Introduce checkpoints where new customer requirements can be adopted.

Extreme Programming(XP)

Source: http://en.wikipedia.org/wiki/Software_development_process Software Application Development Company

Iterative and incremental development process.

An Agile methodDriven from a client-valued functionality

(feature) perspectiveMostly part of other methodologies

Feature Driven Model (FDD)

Source: http://scrummethodology.com/ Software Application Development Company

Relies on the repetition of a very short development cycle: first the developer writes an (initially failing) automated test case that defines a desired improvement or new function, then produces the minimum amount of code to pass that test, and finally refactors the new code to acceptable standards.

• Test-first programming concept of extreme programming in the beginning• Today standalone methodology

Test Driven Development (TDD)

Source: http://en.wikipedia.org/wiki/Software_development_process Software Application Development Company

• An iterative software development process framework created by the Rational Software Corporation (IBM)• Not a concrete prescriptive process, but an adaptable framework, intended to be tailored

by the development organizations• It is expected to select elements of the process that are appropriate.

Rational Unified Process (RUP)

Source: http://www.itinfo.am/eng/software-development-methodologies/ Software Application Development Company

• It describes a model of complex development• For example:

• Hardware• Platform• Application software

• Development of a system's architecture is the “Big V”• Components’/entities’ developments are the

“small V”-s • It shows interactions and sequences of

developing a complex system and a system of systems.

Dual Vee Model

Software Application Development CompanySource: http://en.wikipedia.org/wiki/Software_development_process

http://istqbexamcertification.com/what-is-agile-model-advantages-disadvantages-and-when-to-use-it/

https://www.cprime.com/resources/what-is-agile-what-is-scrum/http://en.wikipedia.org/wiki/Cleanroom_software_engineeringhttp://scrummethodology.com/http://www.computerhope.comhttp://en.wikipedia.org/wiki/Software_development_processhttp://searchsoftwarequality.techtarget.com/definition/Scrum

References

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