Interview
GCSE CCEA Digital Technology/ICT: Unit 2 Complete set of notes
- Course
- Institution
This document is composed of 20+ pages of high quality revision notes whichI achieved an A* Grade through the use of them.
[Show more]
Seller
Follow
finlaymccarroll
Content preview
TOPIC 1:Designingsolutions:
End user:the who will be the system
person using
When it is created.
·
they will work with developers to create
list of feedback
a user
requirements and provide
throughoutthe process.
TargetAudience
thedemographicgoop whowillsee
Ethnicitylevel congrass Gender
Factor
regarding
T.A.
Computer experience Age range
·
Purpose
Document: provides
User Requirements a list of
systems requirements
needed to ensure
system operation.
effective
Requirements be:
must 1) measurable
-
within
budget
and time
2) to understand for the end user.
easy
ProjectDevelopment
Waterfall Iterative
model.Atfirst, a quith basic model the
of
approach wherearepleted productis produced.
Model Sequential final In next
the
a series of
stages Iteration, steps are repeated, more features added
in a fixed order, each stage must be completed before
the next
this centres until completion.
Testing o
testing take
does not
place until
Testing:
otests carried ateach
out
development
stayt
after system has been designed is
implemented ·
This ensures
bugs and mistakes are
detected and corrected early on
·very to
difficult make changes. of correction
a reduces cost
leave anything cut.
·less likes to
,WhatIS PROTOTYPING? · ae
initial version ofa system
being developed.
·rested constantfeedback from
following
the end user to make sure it
meets the end user's requirements.
The two
types prototyping: of
EVOLUTIONARY THROWAWAX
·incomplete version the final system
of s
·prototype will notbe part of final solution.
and to the end user.
developed presented ·
model
ice
system
of
between
is
der
developed
and
to help supportdiscuss -
end used
·
cycle review, feedback
of and refinement
othis helps develop an accurate of
list user requirements
repeated until end user is
presented with a
Patter two,
requirements. prototype discarded and
is
system meets
that all their user new
system is
developed.
Advantages ofprototyping:
I reduces between and user and developer.
⑥ Errors
misunderstandings
be detected reduces of
cost correction.
can
early
-
~ Enables and user to provide continuous feedback.
Disadvantages prototyping
of
X
Prototyping can lead to constant
changing user
of requirements, increases size, time costs
X Unreal expectations about development
progress.
X Not
suited to all
types applications larger projects.
-
of
, TOPIC: Digital Developmentconsiderations.
Graphical user interface (601) vallows interactions
through
the selective on-screen
of
GUI uses a W.1.M.P. Interface options
Windows performed provides
showing actions Windows, ICONS, MENUS
a
-
areaon screen
by an application. and so thatthe user can
POINTERS
Icons -
picture or to
symbolorusedhardware. operate
representa shortcut
it
to a task, app,
from can choose
listed group options
of which user
Menus-whattherequire.
Pointers -
symbol on screen which tracks actions made
device.
input
using an
-
of GUI
Advantages a
⑥ Intuitive and user
friendly
⑥ Don't here to learn
complicated instructions
5 shortcuts help increase speed of
operation
Disadvantages ofa ful
↑
Require more
GPUs
storage, processing power and RAM.
x Powerful needed
can be
X restrictive for expertusers
Natural Interfaces: Provides
Language digital
·
interaction with
sound card are required to support
technology through using their
N.T. Microphone and
N.L. 1. speech or
type instructions
The benefits of buying summaries with Stuvia:
Guaranteed quality through customer reviews
Stuvia customers have reviewed more than 700,000 summaries. This how you know that you are buying the best documents.
Quick and easy check-out
You can quickly pay through credit card or Stuvia-credit for the summaries. There is no membership needed.
Focus on what matters
Your fellow students write the study notes themselves, which is why the documents are always reliable and up-to-date. This ensures you quickly get to the core!
Frequently asked questions
What do I get when I buy this document?
You get a PDF, available immediately after your purchase. The purchased document is accessible anytime, anywhere and indefinitely through your profile.
Satisfaction guarantee: how does it work?
Our satisfaction guarantee ensures that you always find a study document that suits you well. You fill out a form, and our customer service team takes care of the rest.
Who am I buying these notes from?
Stuvia is a marketplace, so you are not buying this document from us, but from seller finlaymccarroll. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for $7.15. You're not tied to anything after your purchase.
Can Stuvia be trusted?
4.6 stars on Google & Trustpilot (+1000 reviews)
75323 documents were sold in the last 30 days
Founded in 2010, the go-to place to buy study notes for 14 years now
Recently viewed by you
