<![CDATA[PT XYZ (the name of the company is disguised) is a company engaged in telecommunications that has distribution areas throughout Indonesia. PT XYZ offers B2B (Business To Business) cooperation services in terms of selling pulses and Payment Point Online Bank (PPOB) to its partners. Based on the results of interviews and observations found problems in the PT XYZ PPOB system. The absence of a bridge to connect the many supplier systems with existing applications at PT XYZ causes problems that arise in the PPOB system. The first problem is the number of suppliers and the presence of new applications at PT XYZ will make coding by the PT XYZ IT be inefficient because they have to change one by one in the coding of the application, even though the time can be used for other IT tasks. The second problem is in terms of supplier management where for the active supplier turnover process and supplier product price changes must be done one by one on the PT XYZ application. This requires a long time in the process. The third problem is that currently in the PPOB PT XYZ business there is no Host to host (H2H) service so it is said to be lagging behind its competitors. Based on these problems, a solution can be given by creating a module in the form of a web service to bridge between suppliers with PT XYZ applications. This module is used as a form of interoperability due to the diversity of the system in PT XYZ's PPOB system. Modules in the form of a web service system and management system that will become the standard for PT XYZ in running PPOB business. The method of developing this module uses the waterfall.]]>
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