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EDI Gap Analysis

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Gap Analysis is an integral part of any EDI (Electronic Data Interchange) implementation, as well as any replacement to a company's existing software base. Analysts need to identify points where there is a difference between the existing solution and the replacement software.

When it comes to EDI, there are identification codes / qualifiers that are frequently either not present or do not match existing codes already in use with a particular document or perhaps data currently sent that a “Trading Partner” (EDI term for a supplier / customer / etc) is not making use of or perhaps data that a Trading Partner needs that's not currently being sent with your existing solution. Or perhaps it's the other way around and you're the one receiving the data. There's also the issue of which EDI transaction set to use to represent your document and also which EDI standard set to use. If you're located in Europe, you most likely will use the EDIFACT ( United Nations/Electronic Data Interchange For Administration, Commerce and Transport ) standards; in the United States, you'll most likely use X12 standards, but if you are located in either one and your trading partner is in another, you may need to support both standards. And then, there's which version of the standards you will use and if your industry has its own guidelines and/or government regulations, you'll want to investigate that as well. All these are valid questions and need to be addressed.

 

EDI Enveloping Part Two (The ISA)

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question key EDI Enveloping Part Two (The ISA)What is in the ISA?

The ISA Segment is the first segment in any EDI document.  Once you understand what it is saying, This long random seeming string will make sense, and be very helpful in helping you relate EDI documents to the real world task that you need to do.

 

EDI Enveloping Part One

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An EDI file contains a structure known as enveloping.  Everything that is necessary for the file transmission and parsing, is part of or inside of the envelope.

The first segment in and EDI file is the ISA segment.  The very last segment in and EDI file is the IEA.  For those of you familiar with XML, you may be thinking of this as <File> and </File>.

This approach may make EDI seem familiar, but XML was not around when EDI was being created.  It is more like a Beginning Of File (BOF) and End Of File (EOF) marker.  However, there is no reason in EDI not to place multiple EDI envelopes in the same file.

 

EDI Delimiters

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What are Delimiters

In short, delimiters are characters that separate the elements of data so that one piece of data can be distinguished from another.  EDI files don’t have externally set delimiters.  This means in a pure sense, that an EDI parser may not know what the delimiters will be until it has begun to parse the file.  This may sound chaotic for someone familiar with strict delimited files.  But we need to remember that in and EDI file, the first segment is fixed position.  This is how EDI addresses the problem.

 

EDI in Good Form

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Beyond just compliance with the EDI standards, good form is using good practices in planing the format of your EDI.  Below are a set of rules or guidelines that will help you create EDI in good form.  Good form helps others to received your EDI and process it without encountering common exceptions.
 
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