Mr Caine
Lesson Objectives
 To know what a Systems Life Cycle is and each of its
 stages.

 To understand how the Systems Life Cycle relates to
 the work we are doing in Unit 2.

 To be able to identify what is involved in each stage of
 the Systems Life Cycle.
Unit 2 – What’s Next
 Analysis (10 Marks)
 Design (20 Marks)
 Implementation (40 Marks)
 Testing (10 Marks)
 Self Evaluation (8 Marks)
 Report (6 Marks)
 Evaluation of others’ use of ICT (6 Marks)


       What is this series of stages referred to as?
Systems Life Cycle
 Feasibility Study
 Analysis
 Design
 Implementation
 Testing
 Training and Documentation
 Evaluation and Monitoring
 Maintenance
Feasibility Study 1
 Initial study
 looks to see if a new system can be built
 at reasonable cost
 in reasonable time
Feasibility Study 2
Find out what people want from the new system by
using:
questionnaires
interviews
observation
inspection of records
Analysis
 Identifies the problems to be solved
 Looks in detail at the current system
 Understands the existing system
 Identifies desired outcomes
 Sets up performance criteria
Design
 Designs the system in line with desired outcomes
 Chooses input, storage and output methods
 Decides on the processes
 Designs input/output screens and layouts of components
 Designs validation tests
 Designs test plans
Implementation
 Produces a working solution according to the design
 Produces framework for databases, spreadsheets, etc.
 Uses software tools to produce a solution
 Produces the working system according to the desired
 outcomes
Testing
 Test plan created during design stage is used to test the
    system
   Test data is entered
   Results are compared with what was expected
   Remedial action is taken to correct faults
   Validation tests are tested
Training and documentation
 User training on how to use the new system
 Documentation to help the user is created
Evaluation and monitoring
 Checking user requirements and performance
  criteria have been met
 Assessment of client/user satisfaction
 Setting up review cycle
Maintenance
 Set up help-desk facilities
 Add extra functions when required
 Improve performance
 Investigate system crashes to prevent them
  happening
Task – System Life Cycle Questions
 Open the file on Moodle called ‘Systems Life Cycle
 Questions’ and complete the Worksheets and Multiple
 Choice Questions.
Task – System Life Cycle Exam
Questions
 Open the file on Moodle called ‘Systems Life Cycle
  Exam Questions’ and complete questions which have
  been taken from previous exam papers.

 Remember:
    Look at the marks available for each question and
     answer the questions accordingly.
Lesson Objectives
 To know what a Systems Life Cycle is and each of its
 stages.

 To understand how the Systems Life Cycle relates to
 the work we are doing in Unit 2.

 To be able to identify what is involved in each stage of
 the Systems Life Cycle.

Systems Life Cycle

  • 1.
  • 2.
    Lesson Objectives  Toknow what a Systems Life Cycle is and each of its stages.  To understand how the Systems Life Cycle relates to the work we are doing in Unit 2.  To be able to identify what is involved in each stage of the Systems Life Cycle.
  • 3.
    Unit 2 –What’s Next  Analysis (10 Marks)  Design (20 Marks)  Implementation (40 Marks)  Testing (10 Marks)  Self Evaluation (8 Marks)  Report (6 Marks)  Evaluation of others’ use of ICT (6 Marks) What is this series of stages referred to as?
  • 4.
    Systems Life Cycle Feasibility Study  Analysis  Design  Implementation  Testing  Training and Documentation  Evaluation and Monitoring  Maintenance
  • 5.
    Feasibility Study 1 Initial study  looks to see if a new system can be built  at reasonable cost  in reasonable time
  • 6.
    Feasibility Study 2 Findout what people want from the new system by using: questionnaires interviews observation inspection of records
  • 7.
    Analysis  Identifies theproblems to be solved  Looks in detail at the current system  Understands the existing system  Identifies desired outcomes  Sets up performance criteria
  • 8.
    Design  Designs thesystem in line with desired outcomes  Chooses input, storage and output methods  Decides on the processes  Designs input/output screens and layouts of components  Designs validation tests  Designs test plans
  • 9.
    Implementation  Produces aworking solution according to the design  Produces framework for databases, spreadsheets, etc.  Uses software tools to produce a solution  Produces the working system according to the desired outcomes
  • 10.
    Testing  Test plancreated during design stage is used to test the system  Test data is entered  Results are compared with what was expected  Remedial action is taken to correct faults  Validation tests are tested
  • 11.
    Training and documentation User training on how to use the new system  Documentation to help the user is created
  • 12.
    Evaluation and monitoring Checking user requirements and performance criteria have been met  Assessment of client/user satisfaction  Setting up review cycle
  • 13.
    Maintenance  Set uphelp-desk facilities  Add extra functions when required  Improve performance  Investigate system crashes to prevent them happening
  • 14.
    Task – SystemLife Cycle Questions  Open the file on Moodle called ‘Systems Life Cycle Questions’ and complete the Worksheets and Multiple Choice Questions.
  • 15.
    Task – SystemLife Cycle Exam Questions  Open the file on Moodle called ‘Systems Life Cycle Exam Questions’ and complete questions which have been taken from previous exam papers.  Remember:  Look at the marks available for each question and answer the questions accordingly.
  • 16.
    Lesson Objectives  Toknow what a Systems Life Cycle is and each of its stages.  To understand how the Systems Life Cycle relates to the work we are doing in Unit 2.  To be able to identify what is involved in each stage of the Systems Life Cycle.

Editor's Notes

  • #5 http://www.teach-ict.com/gcse_new/slc/miniweb/index.htm