Discuss the waterfall method, its pros and
cons, and present a scenario where it
might be preferable over Agile.
Waterfall
Method
PROS
• Plan-oriented and linear
• Finds error in early stages
Pros and
Cons
• PREFERABLE: for software
products with stable product
definition with well known
CONS
domain, technologies
• Not flexible
• Upfront planning can
be a liability
Describe and compare the
MVC and MVVM patterns.
Background: Architecture
• Fundamental organization of a
system
• Difficult to change once
established
• Type: Layered
• Organizes system into layers
• Group each layer by similar
functionalities
• Each layer dependent on layers
beneath it
• MVC and MVVM patterns both
Differences
Model-View-Controller
(MVC)
• Model: manages system
data
• Controller: manages user
interaction
• View: manages how data
is presented to users
Model-View-ViewModel
• Derived from MVC
• Model and view NOT
connected
• ViewModel: interacts with
both model and view
Explain the differences
between, and give examples
of, functional and
nonfunctional requirements.
Comparison
Functional
Requirements
Nonfunctional
Requirements
• Specify how a system
should behave
• What a system does
• Describe
qualities/attributes of the
system
• Game example: player
movement
• How well a system
performs
• Game example:
performance, number of
Domain Model