Chapter 2. Master Code
The System Module is used to define the coding standards on certain files, which will be accessed by other modules.
A code is an abbreviation that represents a group of information. A code is to standardize all inputs for easy comparisons. For example, U.S. Dollar can be written as USD or US$. A correct sum of all U.S. Dollar invoices cannot be established without setting up a standard currency code for identification.
A code can simplify data input without the need to type the name in full.
Finally, with codes established, any change in the data will be reflected throughout all outputs
Some Considerations In Setting Up Codes
There are a few criteria or rules to follow when setting up codes. First, Codes must always be unique. Since a code is an abbreviation for a particular set of related data, it must be unique to avoid confusion. This system will always check for uniqueness of the code you define.
Always try to use codes that follow the common standard. For example, use USD to represent U.S. Dollar in currency code, HK for Hong Kong in country code, and YD for yard in unit of measure.
If there is no common standard, the rule is to define the codes meaningfully. This will facilitate access to the codes and help maintain data related to the codes.
Although good and meaningful codes improve communication and are easy to remember, never spend too much time on establishing the coding system. There is no perfect coding rule applicable to all situations. Therefore, never expect to be able to establish a code that will tell you everything just by reading it. In our System, we have devised the Master Code Lookup to minimize the need of memorizing the codes. Moreover, the Master Code Lookup enables you to search for a code from different display sequences.
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