Life cycles Flashcards
What is a life cycle?
The inter-related phases of a project, programme or portfolio, which provides a structure for governing the progression of the work
Define ‘project’
A unique, transient endeavour undertaken to achieve planned objectives
Name the three distinct phases of any life cycle
- Take an idea
- Develop it into detailed objectives
- Deliver the agreed objectives
Name the four types of life cycle
- Linear/ waterfall
- Parallel
- Spiral
- V model
Name the eight stages in a linear/ waterfall life cycle
- Conceptualisation
- initiation
- Analysis
- Design
- Construction
- Testing
- Production/ implementation
- Maintenance
Define ‘parallel life cycle’
Similar to waterfall, but phases are delivered in parallel to increase the rate of delivery, i.e. multiple delivery stages, enabling benefits realisation before project closure
What are the four stages of a ‘spiral’ type life cycle?
- Analysis
- Evaluation
- Development
- Planning
When is a spiral life cycle often used?
A spiral life cycle is often used where many options, requirements and constraints are unknown at the start. This is typically within a research environment.
What is a spiral life cycle used for?
A spiral life cycle is used to develop a system through repeated (iterative) cycles in smaller (incremental) portions to take advantage of what has already been learnt.
When is a V model life cycle usually applied?
A V model life cycle is usually applied in software development where requirements are defined and the development tools are well known.
What does a V model look like?
Requirement
What are the four primary phases of a typical linear life cycle?
- Concept
- Definition
- Development
- Handover and closure
Define the Concept phase of a linear life cycle
- The Concept phase develops an initial idea and creates an outline business case or project brief and schedule.
- A sponsor is appointed and, where appropriate, a PM.
What are the two key decisions in the Concept phase of a linear life cycle?
- Is the project likely to be viable?
2. Is it definitely worth investing in the next (Definition) phase?
What are the key actions in the Concept phase of a linear life cycle?
- Customer consultation
- Needs and requirements identification and definition
- Stakeholder analysis
- Identification of benefits
- Production of the Approved Need statement
- Options study
- Creation of outline business case and schedule