Loading presentation...

Present Remotely

Send the link below via email or IM

Copy

Present to your audience

Start remote presentation

  • Invited audience members will follow you as you navigate and present
  • People invited to a presentation do not need a Prezi account
  • This link expires 10 minutes after you close the presentation
  • A maximum of 30 users can follow your presentation
  • Learn more about this feature in our knowledge base article

Do you really want to delete this prezi?

Neither you, nor the coeditors you shared it with will be able to recover it again.

DeleteCancel

Make your likes visible on Facebook?

Connect your Facebook account to Prezi and let your likes appear on your timeline.
You can change this under Settings & Account at any time.

No, thanks

Social Issues in IT

No description
by

fattabiouni ninie

on 30 October 2013

Comments (0)

Please log in to add your comment.

Report abuse

Transcript of Social Issues in IT

Social Issues
in
IT

Computer Errors and Failures
SAFETY-CRITICAL APPLICATIONS
Increasing Reliability and Safety
friendly user interface
periodic surveillance
improve security

Dependence, Risk and Failure
Are we too dependent on technology???
In what ways are we safer due to new technology?
Green Technology
Iskandar Malaysia
The occurrence of an incorrect result produced by a computer

FAILURES
Can occur because of a hardware failure or a severe software issue
Commonly, a system failure will cause the system to freeze, reboot, or stop functioning altogether

ERRORS
INCORRECT ASSUMPTIONS WITH REGARD TO SYSTEM REQUIREMENTS

made on the part of the software developers
experience of Nuclear Regulatory Commission
a program called Shock II, miscalculated calculations to ensure the test models would survive a massive earthquake

WHY SYSTEMS FAIL??
faults on the parts of software developers
poor testing of program
Providing poor documentation
Poor user interface
can be found in the experience of the Pentagon’s National Reconnaissance Office (NRO)
The inadequate testing of the delivery system of Titan IV rocket
case of YK Bug
problems with testing operational systems

POOR DEVELOPMENT PRACTICES
system developers may make incorrect assumptions about the requirements of certain modules
one of the probes sent to Mars case
memory space on the probe in which new instructions could be stored, began to run out
 delete the landing modules and thus free up lots of storage space for new instructions

POOR USER INTERFACE
In accounting software 
may cause an invoice to be sent to someone in the wrong currency
may turn what is supposed to be an invoice into a credit note
data that is erroneous may make the system fail
FAULTY HARDWARE
experience of the Wide Field Infrared Explorer (WIRE) spacecraft operated by NASA
failure of the system caused the WIRE to enter an uncontrolled 60-RPM spin within 48 hours of its launch

INADEQUATE USER TRAINING/USER ERROR
lack of knowledge of the system
lack of training should not be thought of as an error due to the individual operator 
poorly designed user interface
improved training of the end users
improve the integrity of data stored on the computer systems
POOR FIT BETWEEN SYSTEM & ORGANIZATION
do not grasp the full spectrum of tasks the new system will need to deal with
asylum system in this country, which is currently undergoing a major transformation in its system
ports access to home office files is discounted for half of all the ports (Travis, 1999)

Know that your computer is going to fail
Learn to recognize the signs of imminent failure
Maintain your computer
Don’t overuse the computer
Don’t do anything unusual
Deal with hardware issues
Deal with other problems
Give your computer a break
Always take advantage of warranties
Back up everything
When it does fail, diagnose the failure


HOW TO PREVENT SYSTEM FAILURE?
CURRENT ISSUES
IT problems affect patients in Glasgow health board area (Oct 2, 2013)
Scotland's largest health board has made an "unreserved apology" over an IT problem which is continuing to affect services for a second day
Climate change theories based on 'computer error‘ (Sept 23, 2013)
Public money is being wasted on climate change-tackling schemes based on dodgy Met Office figures

Holiday meal ruined after Asda failed to deliver (Oct 12, 2013)
After investigating the issue it appears there was a system error at the store which occurred when the payment was requested from the bank, which caused the glitch
Website woes for Affordable Care Act (Oct 19, 2013)
problem for people trying to sign up for health insurance through the Affordable Care Act
many are finding the system is down or doesn't work properly

MEDICINE
The Therac accidents : the FDA had been tracking for several years: computer-related problems in medical devices were on the increase
The evidence was in the FDA's "recall" database and most computer-related recalls were caused by software errors
Recalled devices included ultrasound units, patient monitors, blood analyzers, pacemakers, ventilators, and infusion pumps

AVIATION
Several software-related accidents accompanied the earlier introduction of "fly-by-wire" controls into military aircraft
A computer-controlled wing-mounted launcher retained its grip after its missile was ignited, creating what someone described as "the world's largest pinwheel“ when the aircraft went violently out of control
In 1989 the first prototype of the Swedish JAS-39 Gripen fighter crashed during a test flight after it became unstable while under fly-by-wire control

TRAINS & AUTOMOBILES
In today's new cars, computers control the fuel injection and spark timing and may control the suspension and an anti-lock braking mechanism
In railroads, computers control the switches that are supposed to prevent trains from colliding

POWER
Computers are used extensively to control processes in factories and power plants
Some of the emergency shutdown systems that are supposed to "scram" nuclear reactors are computer controlled

WEAPONS
Computers warn of imminent attack, identify and track targets, aim guns and steer missiles, and arm and detonate explosives
The UK Ministry of Defence (MOD) recently analyzed a sample ofprogram fragments drawn from the NATO military software inventory and one in ten contained errors, and of those, one in twenty (or one in 200 overall) had errors serious enough to result in loss of the vehicle or plant—for example, an actuator could be driven in the direction opposite from the intended one
In the Gulf War, a nearby air defense battery failed to launch any Patriot missiles against the Scud because of a software error

WHAT IS TECHNOLOGY ?
The
making
,
modification
,
usage
, and
knowledge
of 
tools

machines
,
techniques

crafts

systems
, and
methods
of organization, in order to
solve a problem
,
improve a pre-existing solution
to a problem,
achieve a goal
, handle an applied input/output relation or perform a specific function.

new technology
In the history of technology, emerging technologies are contemporary advances and innovation in various fields of technology. Various converging technologies have emerged in the technological convergence of different systems evolving towards similar goals
CELL PHONE / TABLETS
New Technology now days
GOOGLE GLASS
Apple TV
Risk of New Technology
5 Biggest technology Failure of the Last Decade
1. Microsoft Vista
2. Gateway
3. HD DVD
4. Iridium
5. Palm
RISK OF NEW TECHNOLOGY
Dependency on gadgets
Integrating new technology
New Technology related diseases
Pollution
Vocation
Full transcript