Drill Down Server

• What is the DDS?

• Is the DDS capable of geocoding? Reverse geocoding?

• Does it provide turn-by-turn directions? Pedestrian routing?

• What types of maps does it produce?

• What types of map data does DDS use?

• Is it scalable?

^{What is DDS?}

DDS is a spatial query server that provides all of the core features required for location-based applications and services, including: routing, mapping, geocoding and reverse geocoding. It also supports more advanced applications including real-time navigation, guidance and traffic, as well as vehicle tracking.

^{Is DDS capable of geocoding? Reverse geocoding?}

Yes, DDS provides both geocoding and reverse geocoding capabilities. For geocoding, the DDS employs the Lookup Plug-in to turn a street address into a latitude and longitude pair. The Lookup Plug-in also provides the ability to find misspelled or incorrectly input addresses using Soundex and Fuzzy Match. For reverse geocoding, the Proximity Plug-in is capable of resolving a latitude and longitude pair into a street address.

^{Does it provide turn-by-turn directions? Pedestrian routing?}

Yes, through the Route plug-in, DDS can output turn-by-turn instructions and perform pedestrian routing. Based on a given route calculation, DDS can provide turn-by-turn instructions that can be output to a location-based application in text, image or synthesized into speech. In addition, the DDS can provide route outputs based on a variety of criteria, including “fastest”, “shortest”, “avoid highways”, or “scenic.” DDS also supports POIs along a given route.

^{What type of maps does it produce?}

DDS produces both GIF image and vector-based maps. Both map types support cartographic operations like panning, zooming and image rotation.

^{What type of map data does DDS use?}

The DDS utilizes map data from the leading map providers. Through deCarta’s data conversion tool, deCarta supports the following data:

• NAVTEQ database for Europe, North America, South America, Middle East, Australia, Africa and Asia
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• Tele Atlas database for Europe, North America, South America and Middle East
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• AND database for Eastern Europe, parts of Latin America, Middle East, Australia, North Africa

^{Is it scalable?}

DDS is deployed in several high-transaction production environments and demonstrates its scalability and performance daily.