ECGrid is a system to move electronic business documents from one organization to another in a reliable, efficient and trackable manner. So, when everything else it put aside: It's all about the data.
Using the physical world as a model, all these business documents are wrapped in envelopes. The lowest level that ECGrid penetrates is the Interchange. In X12 this is represented by the ISA envelope and in EDIFACT it is the UNB envelope.
It is our philosophy and policy that nothing within this envelope is within our domain. This area is left to the VANs and ECSPs. This clearly delineates ECGrid from the networks that connect to it. It also allows us to clearly concentrate on our mission.
ECGrid natively routes X12 and EDIFACT envelopes. Through the ParcelUploadEx() and ParcelDownloadInner() ECGrid can route any data types within an X12 ISA envelope.
X12.56 allows for VANs to track Mailbags over Interconnects. While Mailbags may contain multiple Interchanges, ECGrid only sends one Interchange per Mailbag as the protocol requires that an entire Mailbag be rejected if even a single Interchange is corrupt.
Within EDI itself, data is considered a stream and is not tied to the concept of a file. For this reason, ECGrid uses the term Parcel to describe EDI data turned into a file-based format.
All Parcels, Mailbags & Interchanges are kept on-line for a minimum of 60 days, after which they are moved off-line to archives. To recover data from Archive, please contact ECGrid NetOps.
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