ISO SYMBOLS - What is the international standard for flow charting

R

rkalai

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#1
What is the international standard for flow charting . I expect the symbols should combine process activity and respongibility centres
R.Kalaignanam
 
#2
Always a good idea to use the search engine for questions like this, as there have been specific threads on exactly this topic.

From memory - (and I've said this before) there isn't one. ISO only has one for "Flowchart symbols and their use in micrographics". I know Standards Australia has, or certainly had, one for flow charts, so other standards bodies may have similar guides.

These are only guides. Use whatever is easiest, e.g. WORD has a standard set of flowchart symbols to use (and do) or if you have a flowcharting computer program then that'll have a std set.

If you're looking to buy a flowchart program, check out past threads, or post in the quality software section.

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#3
There are standard flowchart symbols (international standards) and extended flowchart symbols that is used for specific needs. Below are the most commonly used ones.

  1. Data object – The Data object, often referred to as the I/O Shape shows the Inputs to and Outputs from a process.
  2. Rectangle – This is used to represent an event which is controlled within the process. Typically this will be a step or action which is taken.
  3. Diamond – Used to represent a decision point in the process. Typically, the statement in the symbol will require a `yes’ or `no’ response and branch to different parts of the flowchart accordingly.
  4. Document – The Document object is a rectangle with a wave-like base. This shape is used to represent a Document or Report in a process flow.
  5. Rounded box – This is used to represent an event which occurs automatically. Such an event will trigger a subsequent action, for example, receive a telephone call, or describe a new state of affairs.
  6. Stored data – This is a general data storage object used in the process flow as opposed to data which could be also stored on a hard drive, magnetic tape, memory card, of any other storage device.
  7. Manual input – This object is represented by a rectangle with the top sloping up from left to right. The Manual Input object signifies an action where the user is prompted for information that must be manually inputted into a system.
  8. Direct data – Direct data object in a process flow represents information stored which can be accessed directly. This object represents a computer’s hard drive.
  9. Circle – Used to represent a point at which the flowchart connects with another process. The name or reference for the other process should appear within the symbol.
  10. Internal storage – This is an object which is commonly found in programming flowcharts to illustrate the information stored in memory, as opposed to on a file.
  11. Predefined process – This allows you to write one subroutine and call it as often as you like from anywhere in the code.
 
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