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EPPML (Extensible Postal Product Model and Language) is a conceptual model for the interactions between parties of a postal communication system. Examples of such parties are mailers, posts, mail aggregators, providers of postal services and equipment and recipients. They create, publish, consume and deliver postal products. The central concept of EPPML is the postal product. EPPML defines the structure and meaning for the information that represents a postal product. The postal product definition may be viewed as an interface between posts, their customers and other parties. The formal representation of postal products allows automated systems to efficiently consume new postal products as they are introduced by postal operators. The current implementation of EPPML is based on XML technology, but the EPPML concepts may be implemented with other technologies (e.g. relational databases, semantic web). Each postal product is fully represented by one (and only one) postal product definition file (PPDF) which is an XML document. A PPDF must be valid under the EPPML schema. == EPPML as a model of interaction == The 'M' in EPPML stands for Model. EPPML was defined by its authors as a model for the interaction between parties that create, publish, consume or deliver postal products. File:EPPML Postal Product Consumption.png The interactions defined by the model include actions on physical items, information exchanges and financial transactions. The typical action on a physical item is a change of location (e.g. delivery). The information exchanges may use either electronic channels (e.g. web services, email) or physical channels (e.g. bar codes printed on mail items by mailers and read posts). An example of a financial transaction is a refund for late delivery of a mail item. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「EPPML」の詳細全文を読む スポンサード リンク
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