System
12-202
design
4
, U.m.l = unified language
model
Model → requirements → developers can create a
system. Iron triangle of project
Why use
models? management:
Schedul
• understand the e
system
• Communicate with
users
• Accurate description of tree required Qualit
system y
• iron triangle of project
Scop Budge
management Ik e t
What is a
model?
A simplified representation of a part of the word from a particular view
• Simplified → what do we discard,what do we represent?
• Representations → which notation is to be
used?
• View → with particular aspect is
modelled?
U.m.l • Use Case diagram → describes the system's
diagrams: functionality at the highest level → actor uses function of
Activit • the system
Activity diagram → describes process that take place in the
Requirements
y
list Real world → not al interact with the system
&
• State machine → describes changes within the
• systemdiagram → models the data that are stored
Class
State
machine Use case inside the system → use cases correspond to actions
on objects
Behaviou Functionalit
r Dat Iynteractio
a n
Sequenc
Clas e
s
System
boundary
Design = the creation of a plan or convention for the construction of an object or a
system.
Waterfall
model:
Ik
12-202
design
4
, U.m.l = unified language
model
Model → requirements → developers can create a
system. Iron triangle of project
Why use
models? management:
Schedul
• understand the e
system
• Communicate with
users
• Accurate description of tree required Qualit
system y
• iron triangle of project
Scop Budge
management Ik e t
What is a
model?
A simplified representation of a part of the word from a particular view
• Simplified → what do we discard,what do we represent?
• Representations → which notation is to be
used?
• View → with particular aspect is
modelled?
U.m.l • Use Case diagram → describes the system's
diagrams: functionality at the highest level → actor uses function of
Activit • the system
Activity diagram → describes process that take place in the
Requirements
y
list Real world → not al interact with the system
&
• State machine → describes changes within the
• systemdiagram → models the data that are stored
Class
State
machine Use case inside the system → use cases correspond to actions
on objects
Behaviou Functionalit
r Dat Iynteractio
a n
Sequenc
Clas e
s
System
boundary
Design = the creation of a plan or convention for the construction of an object or a
system.
Waterfall
model:
Ik
