Informative Maps on pda-phones

CS) Informative Maps on PDA-phones
Chui Pui Ling Page 50 The webpage showing an informative map is displayed as desktop view on the PDA phones such that the map is of size X without condensation.

CS) Informative Maps on PDA-phones
Chui Pui Ling Page 51 With scrolling, the user can read the optimal route on the map. the centre of the map is the user’s current location)

CS) Informative Maps on PDA-phones
Chui Pui Ling Page 52 Upon the user requests Zoom Ina zoomed inversion of the map is displayed. Upon the user request Listen to the Instruction, instruction of Walk along Nathan Road, Turn right to Nathan Road 105, Kowloon Mosque and Islamic Centre will bespoken out.

CS) Informative Maps on PDA-phones
Chui Pui Ling Page 53 If the user requests Show Photo, the photo is displayed as default view on the PDA phones such that the photo is condensed to fit the screen size and no horizontal scrolling is required.
Figure 23 User Interface samples on Pocket PC
5.2. Performance
The performance of the location detection and the audio instruction are evaluated. Figure 24 shows that the data obtained from the location detection testing. It reveals that the accuracy in location detection is affected by different location. The denser area would be returned with a more accurate address and some of the buildings maybe returned only with its road name. For tourist guiding purpose, the result can concluded to be acceptable since the detected address is at most nearby their actual location. Moreover, since tourists are used to tour around in some popular areas in HK, the location detection accuracy would not be too worse.

CS) Informative Maps on PDA-phones
Chui Pui Ling Page 54 Another issue is the waiting time for user to obtain the requested information. The average time for obtaining the address information is 1 min 15 sec while the time for obtaining an informative map with audio instruction required 2 minutes to 10 minutes depending on the wav file size. It may not be acceptable for users to wait about 10 minutes to obtain an audio instruction but the bottleneck is due to the
GPRS Internet connection. With the rapid development in telecommunication, the speed of the Internet connection maybe improved in the near future. For instance, if G technology could be applied, the performance would greatly be improved.

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