Extreme Programming

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Extreme Programming

Extreme programming is an agile methodology that is good for rapidly changing user requirements.

Extreme planning

Extreme planning is the first stage, where the client is in constant communication with the project team to establish the requirements.
The project then goes into the 'planning game' to plan out releases and what will be in each iteration.

Extreme designing

The project team then moves into extreme designing where they will build simple designs that implement the needed functionality.
During this they will develop what is known as the 'project metaphor'.
This is a way to describe the project and build it up.

Extreme programming

The project team then move into extreme programming where they will develop the agreed items from the planning game.
During this time the programmers work in pairs with one coding and the other critiquing the code.

Extreme testing

Once development is completed then it moves to extreme testing where the code is tested in units.
Integration testing is also completed to ensure it works together and the code is reviewed for efficiency and quality.

Acceptance testing

Acceptance testing is where the client feeds back on the product in its current stage.
This is then taken into the next iteration of extreme planning for the next release, and the progress all repeats until the project is completed.

Merits & Drawbacks of Extreme Programming

Software development methodologies are suitable in different situations and all of them have positive and negatives.

Merits of extreme programming

Like agile, extreme programming can produce a product quickly for the client to be able to sell or use.
- The product is then quickly incremented for improvements and additional features.
The project is constantly refactoring in response to continuous client feedback.
- This can save time and money for developing.
The project is at lower risk of failure, as the client has guided the project with their continuous feedback.

Drawbacks of extreme programming

The project can be too code focused and not design focused so may not be the best possible product and extreme programing produces little to no documentation.
If the developers are split geographically it can cause issues when it is time for code review.

Usage

Extreme programming is best suited to projects where the client has a constantly changing set of requirements, but needs a product quickly to get to market and for the lowest possible price.

1Components of a Computer

1.1Structure & Function of the Processor

1.1.1Structure of the CPU

1.1.2Fetch, Decode, Execute Cycle

1.1.3Factors Affecting CPU Performance

1.1.4CPU Architecture

1.2Types of Processors

1.2.1CISC & RISC

1.2.2Multicore & Parallel Cores

1.3Input, Output & Storage

1.3.1Computer Systems

1.3.2Magnetic Storage

1.3.3Optical Storage

1.3.4Types of Optical Storage

1.3.5Types of Memory

1.3.6Flash Memory

1.3.7Virtual Memory

2Software & Software Development

3Exchanging Data

4Data Types, Data Structures & Algorithms

4.1Data Types

4.1.1Data Types

4.1.2Arrays & Strings

4.1.3Representing Numbers

4.1.4Binary Arithmetic

4.1.5Hexadecimal

4.1.6Converting Binary Numbers

4.1.7Floating Points in Binary

4.1.8Floating Point Arithmetic

4.1.9Bitwise Manipulation

4.1.10Character Sets

4.2Data Structures

4.2.1Arrays, Linked Lists & Queues

4.2.2Graphs, Hash Tables & Stacks

4.2.3Trees

4.3Boolean Algebra

4.3.1Computational Logic

4.3.2Boolean Logic

4.3.3Karnaugh Maps

4.3.4Boolean Identities

4.3.5Flip Flops & Adder Circuits

5Legal, Moral, Cultural & Ethical Issues

5.1Computing Related Legislation

5.1.1Data Protection Act (1998)

5.1.2Computer Misuse Act (1990)

5.1.3Copyright Designs and Patents Act (1988)

5.1.4Regulation of Investigatory Powers Act (2000)

5.2Moral & Ethical Issues

5.2.1Online Activity Tracking

5.2.2Censorship

5.2.3Cultural Issues

5.2.4Environmental Issues

5.2.5Layout, Colour Paradigms & Character Sets

6Elements of Computational Thinking

6.1Thinking Abstractly

6.1.1Abstraction

6.2Thinking Procedurally

6.2.1Decomposition

6.3Thinking Logically

6.3.1Pseudocode & Flow Diagrams

7Problem Solving & Programming

7.1Programming Techniques

7.1.1Programming Fundamentals

7.1.2Modularity

7.2Programming Construction

7.2.1Integrated Development Environments

7.2.2Testing

8Algorithms

8.1Algorithms

8.1.1Interpreting, Correcting & Completing Algorithm

8.1.2Sort Algorithms

8.1.3Insertion & Merge Sort

8.1.4Search Algorithms

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