•
What is a
system
?
Systems and Software
An The V
integrated set of elements subsystems ,
or -
model
assemblies that
accomplish a defined objective .
Two
key Tests Customer
:
Customer level
1. Interconnected elements -
If an element is removed Requirements test
does it
change
the nature
of the system
?
System
2.
Purpose -
Is there a
defined a clear
purpose of
Requirements System test
the
system
? Component
Requirements Component test
External System Interactions :
Component Design
I build
System Boundary needs be set
°
to
The
System being analysed known the
-
is as
•
Customer Requirements :
Decide what the customer
System of Interest
do
wants the
system .
Systems Lifecycle •
System requirements : Translate the customer
technical
requirements system
into
requirements
concept
Component Requirements Decompose System requirements
•
set of
Input :
current products customer experiences
,
,
:
business
strategy ,
current avatars le
technology & into component requirements .
unmet customer expectations opportunity
Design
or
Freeze At this
point the
original
•
equipment
-
Output :
List of project stakeholders customer
to the
requirements
,
manufacturer commit
must
requirements upon product set of potential ,
concepts .
for each component .
recommended concept for development stage
-
&
business case .
•
Component Design and Bulid -
Components are designed
Development and made could be in house or outsourced
-
.
Input Chosen concept
Component Test Test each
: •
component against
-
Output Detailed requirements (including customerI
original requirements
:
.
legal Design ) of product , completed tests
of
system Test
Integrate and test
•
,
components
-
design against requirements updated ,
business
case .
as a
system
production
•
Customer Level Tests - Test the
system in the
Input Detailed
Requirements
:
hands 9- a customer to ensure it delivers the
Output
:
Set of manufactured and legged products ,
Product is certified original requirements .
to show
legal requirements
have been met .
Principles of V model
- :
Utilisation .
Development viewed at
different levels
The product or service is used Includes maintenance .
Requirement process tackle the
problem by
.
-
& issues Problems here hard to
fix
fixing
are
decomposing it into smaller
problems
.
.
Retirement Test process Tactile problems
starting with
° -
details ( )
(components first component system product
→ →
Con the materials be reused ?
Decide tests as
part requirement writing
°
Problems here are also hard tofix of .
very
What is a
system
?
Systems and Software
An The V
integrated set of elements subsystems ,
or -
model
assemblies that
accomplish a defined objective .
Two
key Tests Customer
:
Customer level
1. Interconnected elements -
If an element is removed Requirements test
does it
change
the nature
of the system
?
System
2.
Purpose -
Is there a
defined a clear
purpose of
Requirements System test
the
system
? Component
Requirements Component test
External System Interactions :
Component Design
I build
System Boundary needs be set
°
to
The
System being analysed known the
-
is as
•
Customer Requirements :
Decide what the customer
System of Interest
do
wants the
system .
Systems Lifecycle •
System requirements : Translate the customer
technical
requirements system
into
requirements
concept
Component Requirements Decompose System requirements
•
set of
Input :
current products customer experiences
,
,
:
business
strategy ,
current avatars le
technology & into component requirements .
unmet customer expectations opportunity
Design
or
Freeze At this
point the
original
•
equipment
-
Output :
List of project stakeholders customer
to the
requirements
,
manufacturer commit
must
requirements upon product set of potential ,
concepts .
for each component .
recommended concept for development stage
-
&
business case .
•
Component Design and Bulid -
Components are designed
Development and made could be in house or outsourced
-
.
Input Chosen concept
Component Test Test each
: •
component against
-
Output Detailed requirements (including customerI
original requirements
:
.
legal Design ) of product , completed tests
of
system Test
Integrate and test
•
,
components
-
design against requirements updated ,
business
case .
as a
system
production
•
Customer Level Tests - Test the
system in the
Input Detailed
Requirements
:
hands 9- a customer to ensure it delivers the
Output
:
Set of manufactured and legged products ,
Product is certified original requirements .
to show
legal requirements
have been met .
Principles of V model
- :
Utilisation .
Development viewed at
different levels
The product or service is used Includes maintenance .
Requirement process tackle the
problem by
.
-
& issues Problems here hard to
fix
fixing
are
decomposing it into smaller
problems
.
.
Retirement Test process Tactile problems
starting with
° -
details ( )
(components first component system product
→ →
Con the materials be reused ?
Decide tests as
part requirement writing
°
Problems here are also hard tofix of .
very
