DecernsSDSS is web application build according to Java EE 5 specifications.
The following main technologies were used for SDSS development: Servlets, Java Server Pages (JSP), Java Server Faces (JSF),
JavaServer Pages Standart Tag Library (JSTL) and Applets.
DecernsSDSS has three tier architecture. Requirements for each of the levels are presented below:
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Presentation tier.
Software: Requires installed Java Runtime Environment (JRE) v.1.6 and Internet browser with Java Plug-in.
JRE which includes the java plug-in is free and may be downloaded from http://www.java.com.
DecernsSDSS was tested on Windows and Linux platforms with the following browsers: IE 6/7/8, Mozilla Firefox v.2/v.3.
Hardware: Processor P4 2.8GHz, 1 GB of RAM, DirectX 9c, video board with the latest drivers.
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Logic tier.
Software:
Requires installed Java SDK v.1.6 and application server which supports JEE 5 specifications.
DecernsSDSS was tested with SUN Glassfish and Apache Tomcat servers.
Hardware: Any configuration that can run java application server.
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Data tier.
Software:
Requires installed DBMS PostgreSQL 8 with PostGIS v.1.4 (GIS extension for PostgreSQL).
Hardware:
Any configuration that can run PostgreSQL 8.