Your SlideShare is downloading. ×
0
Lesson 14 computer system sofware
Lesson 14 computer system sofware
Lesson 14 computer system sofware
Lesson 14 computer system sofware
Lesson 14 computer system sofware
Lesson 14 computer system sofware
Lesson 14 computer system sofware
Lesson 14 computer system sofware
Upcoming SlideShare
Loading in...5
×

Thanks for flagging this SlideShare!

Oops! An error has occurred.

×
Saving this for later? Get the SlideShare app to save on your phone or tablet. Read anywhere, anytime – even offline.
Text the download link to your phone
Standard text messaging rates apply

Lesson 14 computer system sofware

408

Published on

Published in: Technology, Business
1 Comment
1 Like
Statistics
Notes
No Downloads
Views
Total Views
408
On Slideshare
0
From Embeds
0
Number of Embeds
0
Actions
Shares
0
Downloads
16
Comments
1
Likes
1
Embeds 0
No embeds

Report content
Flagged as inappropriate Flag as inappropriate
Flag as inappropriate

Select your reason for flagging this presentation as inappropriate.

Cancel
No notes for slide

Transcript

  • 1. Computer Systems Software
    Lesson 14
  • 2. 1
    Defining the Problem
    5.
    Documentation
    The Programming Cycle
    2
    Planning the Solution
    4
    Checking out the program
    3
    Coding the Solution
  • 3. 1. Defining the Problem
    The task of problem definition is one of making sure what has to be done or what problem has to be solved
  • 4. 2. Planning the Solution
    This commonly involves determining the sequence of processing steps within individual programs.
    To save on time and effort, the programmer refers to a pictorial representation , the program flow chart.
    The flowchart is an all-purpose tool and a program blueprint.
  • 5. 3. Coding the Solution
    At this stage , the programmer converts the steps depicted in the program flow chart into readable instructions that make up the actual program. Coding can be written at different levels , ranging from machine language to high-level programming languages.
  • 6. 4. Checking out the program
    Debugging is the task of finding program errors ( bugs) and correcting them so that the program runs correctly.
    Type of errors in programming
    Clerical errors – occur in the coding or data entry process.
    Logical errors – they occur because the programmer does not thoroughly understand a phase of the problem to be solved.
  • 7. 5. Documentation
    The technical documentation includes:
    Complete statement of the problem
    Description of the program logic and copies of the flow charts
    Final source listing
    List and description of error tests along with the disposition of these errors
    Operating instructions, including programs and data structures and test data used.
  • 8. 5. Documentation
    Input and output specifications
    Schedules to be maintained

×