SLR 6 Flashcards
Development Methodologies
What is feasibility?
Is the plan solvable?
What are requirements?
Working out what the solution needs to do
What is analysis and design?
Working out how the solution needs to do something
What is implementation?
Coding the solution
What is testing?
Checking the product actually works
What is deployment?
Installing it in the target environment
What is evaluation?
Checking in with the user to see if the solution is complete
What is maintenance?
Continuing to ensure it functions and make improvements, patches and updates
What are the types of methodologies?
Waterfall
Rapid Application Development
Spiral
Agile
Extreme programming
What is the waterfall life cycle?
Gets its name from cascading from 1 phase to another
Each phase has a designed start and end
What is the RAD development cycle?
Involves producing successive prototypes of the software until a final version is finished and approved
What is the spiral model?
A risk driven development cycle involving some unique risks
Acts as a guide for development teams, adopting elements from waterfall and RAD
Decisions made off of identified risks
What is the agile methodology?
Refers to a group of methodologies
More refined that RAD
Built in a series of iterations known as sprints which are start time boxed periods which focus on set goals
Each sprint should be short and take less than 4 weeks
What is extreme programming?
Aims to produce high quality code and promote the QOL of developers
Follows: Simplicity, communication, feedback, courage and respect
It is considered an agile framework and aims to show every member of the team is of equal value
What are the benefits of waterfall?
Simple, easy to manage
Everybody has clear responsibilities
Clear deliverables
Easy to see if project is up to schedule
What are the risks of waterfall?
User can’t see project until it’s finished
Can lead to unfixable projects if there is a misunderstanding
Requirements must be understood, so bad for complex projects
What are the benefits of RAD?
Requirements don’t need to be clear at the start
Can gather requirements without any large documents
Continuous feedback, excellent usability
What are the risks of RAD?
Not useful for projects that require code efficiency
Constant contact with client needed
Scales poorly for large projects
What are the benefits of Spiral?
Risk management
Excellent for high risk projects
What are the risks of Spiral?
Complex nature of risk analysis leads to high costs
If risk analysis is bad then the project will suffer
What are the benefits of agile?
Emphasis programming means end product is high quality
Core principles, productive development team
What are the risks of Agile?
Requires team to be geographically close
Client must commit full time
Cost
What is an algorithm?
A sequence of steps to complete a task
Flowcharts can represent algorithms and pseudocode can be used to use logic but ignore rules and syntax
What is black box testing?
Checks whether an input gives an expected outcome or not
What is white box testing?
Testing algorithms to make sure they work as intended
Checks all possible outcomes and the codes overall efficiency
What is alpha testing?
When a developer hires a friend or family member to test a program
What is beta testing?
Letting a large variety of people test a program
