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65-8 Industrial Communication Systems<br />

FIGURE 65.2<br />

An example of service mashup.<br />

i.e., Web applications that combine information from several sources and provided through simple Web<br />

APIs. They aid lifecycle management of the self-organized, dynamic Service Space. Mashup helps to<br />

form the Virtual Organization. We differentiate between Service mashup (data level) and User mashup<br />

(meta-data level) [Dillon 07a,07b] and will utilize both in our approach to Web services composition.<br />

Note in this way, mashups will replace the slow and lumbering approach to workflow management in<br />

traditional Web service approaches. An example of service mashup is shown in Figure 65.2.<br />

65.3.3 Customizations of Product and Materials Flow Monitoring<br />

In order to achieve these twin aims, we employ RFID Technology. This is chosen over client site workstations<br />

and barcode readers as it can be flexibly deployed at widely varying sites or new sites and is less<br />

dependent on an exact orientation of presentation of the barcode to the reader and can be employed in<br />

the presence of employees with relatively poor computer literacy. The use of RFID technology essentially<br />

requires the user of RFID devices and antennas. The RFID devices will be embedded in a particular<br />

customized product that is being produced and it could carry information and rules on the next step in<br />

the process that need to be carried out with the product itself. Such an approach has already been trialed<br />

with the automotive industry and in the production of electronic boards by IBM. In addition, it can be<br />

used to monitor the movement, flow, storage, and consumption of materials.<br />

Also RFID technology will allow the determination of the precise quantities of certain materials and<br />

components at a given site effectively. This last factor is of considerable importance as the assembly of<br />

the products will frequently require the movement of specialized staff to the remote site to help carryout<br />

certain tasks and it would be extremely costly if they were sitting around doing nothing because certain<br />

component necessary for some stage of the work are not present at the site. In addition, to the actual<br />

gathering of data and information, which can be done by RFID technology, it is necessary to utilize this<br />

information to build a picture of the state of the overall state of production. Here we intend to explore<br />

two approaches creating a virtual representation of an RFID tag within the framework of a Web service.<br />

Such an approach has been attempted recently by [Chen 07] for the simpler problem of warehouse inventory<br />

management.<br />

© <strong>2011</strong> by Taylor and Francis Group, LLC

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