In this paper, we design an integrated mobile service environment (MSE) for the handheld devices (e.g., PDAs). The integral MSE is a coherent and intact service architecture built on the front-end (handheld devices), which allow the mobile users to choose and subscribe their request services provided by the Service Provider.
The architectures of MSE consist of desktop agent (DA) and service agent (SA) at the top layer, communication layer at the bottom layer and a virtual machine (VM) layer between them. Desktop agent is used as the user interface and responsible for the local process management; service agent is downloaded from the back-end server to the client. The communication layer adopts XML-RPC as the communication protocol between the client and back-end server. The XML-RPC data size is reduced by our compression mechanism to shorten the transmission time. The virtual machine supports cross-platform operation for the top layer. Besides, we devise a cache mechanism to automatically store recently used and reused SAs in the limited space of handheld devices. This cache mechanism can let the mobile users get the SA they want efficiently.
Finally, we implement a real-time stock transaction system to experiment the performance and the applicability of our MSE architecture.
| Identifer | oai:union.ndltd.org:NSYSU/oai:NSYSU:etd-0716102-141120 |
| Date | 16 July 2002 |
| Creators | Lin, Kuo-Chang |
| Contributors | tsung-chuan huang, chu-shing yang, ting-wei hou, tse-sheng |
| Publisher | NSYSU |
| Source Sets | NSYSU Electronic Thesis and Dissertation Archive |
| Language | Cholon |
| Detected Language | English |
| Type | text |
| Format | application/pdf |
| Source | http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0716102-141120 |
| Rights | unrestricted, Copyright information available at source archive |
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