1.1 reasons for system development

Question 1

what is the sw crisis?

Answer 1

-the way in which software is developed must be changed because users needs’ were not being met
-ensures software meets the user requirements
-effective advances in hw and sw ere not being used in the production of sw

Question 2

what caused sw crisis

Answer 2

-systems were delivered over budget
-systems/software not being delivered/developed on time
-developments in sw not keeping up with developments in hw
-sw systems were becoming more complex

Question 3

Off the shelf

Answer 3

software that has already been created and can be purchased immediately

Question 4

custom made

Answer 4

The software is designed specifically for the company either in-house by their own ICT specialists or by a software developer

Question 5

advantages of off the shelf

Answer 5

• supports standard business functions performed by all businesses/ organisations e.g. accounting
  -support/training should be available

Question 6

advantages of custom built

Answer 6

-tailor-made for the business and gives company full control over the product
-easy to use

Question 7

what prompts a new system?

Answer 7

• current system may no longer be suitable for its purpose.
  -The company requirements may have changed significantly and additional functionality may be required.
  -Technological developments may have made the current system outdated.
  -They may have introduced new OS/HW platforms which the old software will not function on.

Question 8

what is a user interface?

Answer 8

The user interface allows the user to interact with the computer and the software.

Question 9

benefits of a shop using barcode system

Answer 9

-barcode is read electronically
-prices up to date
-no transcription errors

Question 10

benefits of e commerce

Answer 10

-stock level automatically updated before next transaction takes place
-order will be processed immediately

Question 11

systems analyst

Answer 11

-analyse the data processing requirements of the organisation and document findings
-liaises with the client
-identifies user reqs
-fact finding
-conducts a feasibility study

Question 12

risk analysis

Answer 12

-time allocated
-budget allocated
-availability of skills required for successful completion of the project

Question 13

project mananger

Answer 13

-manage the development of the new system
- plan/schedule the project/set time scales
- manage the budget
-allocate resources – human, hardware, software
-monitor progress
-identify/respond to risk/bottlenecks
-report to management/client

Question 14

programmer

Answer 14

-produces program code using a programming language such as SQL from module specifications
-Debugs the code
-Documents the code
-Maintains the code
-tests the code

Question 15

technician

Answer 15

-install hardware
-install and configure software
-maintain ICT systems
- troubleshoot/monitor ICT systems
-perform backup
-Sets up and monitors user accounts
-Ensures network security
-Controls peripherals devices on network