Security for GIS N-tier Architecture

nformation and data protection within a RDBMS

“…Possible solutions for information security and data protection in GIS as well as in Database Management Systems for large binary objects on the Oracle 9i DBMS were investigated in [6][7][8][9] and [10]. The investigation of possible solutions of data protection for the GIS systems was performed at different levels, including data encryption by traditional and new algorithms within DBMS.…”

“…The investigation of possible solutions of data protection for the GIS systems was performed at different levels, including data encryption by traditional and new algorithms within DBMS. Our results were presented at international conferences [6][7][8] and [9], in journal publications [10] as well as in a MSc research work at the University of the South Pacific, Fiji.…”

“…The models in the combined languages permits to automatically generate access control infrastructures for server-based applications, built from declarative and programmatic access control mechanisms. A UML-based approach is presented in [12], which could be utilized for the n-tier architecture and some special data storage systems solution [9]. The feasible architecture included a client tier in which user services resided, where the client tier was represented by a Web browser or wireless device (thin client), and either Web browser with Java applets or ActiveX components or a Java application (thick client) [13,14].…”

“…In order to transform the already discussed deployment architecture [9] into UML deployment models, we should use the developed UML approach for Access Control Infrastructures analyses in [11] and UML models for information systems performance analyses in [16]. The primary model represents the basic functionality without any security mechanisms.…”

“…The components of a web-system are logically divided into three tiers: a) a set of emulated web browsers (EB), b) web tier including Web Servers, Image Servers and Web Caches and c) persistent storage [16]. Figure 1 presents a general UML deployment diagram of the feasible Information System, investigated in the [9]. The UML model has a transition from 3-tier architecture to 4-and n-tier and encryption implementation for all data transmission, as an important part of security solution.…”