相对于开源软件，非开源软件的倡导者们将源代码保密看作是一项重要的安全功能。他们的理念是源代码保密是阻止非法入侵者的重要手段，正所谓“Security through Obscurity(以保密实现安全)”。即使真的出现系统漏洞，源代码保密也可以...相对于开源软件，非开源软件的倡导者们将源代码保密看作是一项重要的安全功能。他们的理念是源代码保密是阻止非法入侵者的重要手段，正所谓“Security through Obscurity(以保密实现安全)”。即使真的出现系统漏洞，源代码保密也可以将损害减至最小。通过保密手段实现系统安全的原理便是将源代码隐藏起来使它不能成为非法用户入侵的工具。这好比一扇被锁住的门，可以让很多企图偷东西的人知难而退，展开更多
For technical and other reasons there is a dilemma that data providers cannot find an appropriate way to redistribute spatial forest data and data users who need spatial data cannot access and integrate available fore...For technical and other reasons there is a dilemma that data providers cannot find an appropriate way to redistribute spatial forest data and data users who need spatial data cannot access and integrate available forest resources information. To overcome this dilemma, this paper proposed a spatial forest information system based on Web service using an open source software approach. With Web service based architecture, the system can enable interoperability, integrate Web services from other application servers, reuse codes, and shorten the development time and cost. At the same time, it is possible to extend the local system to a regional or national spatial forest information system. The growth of Open Source Software （OSS） provides an alternative choice to proprietary software for operating systems, web servers, Web-based GIS applications and database management systems. Using open source software to develop spatial forest information systems can greatly reduce the cost while providing high performance and sharing spatial forest information. We chose open source software to build a prototype system for Xixia County, Henan Province, China. By integrating OSS packages Deegree and UMN MapServer which are compliant to the OGC open specifications, the prototype system enables users to access spatial forest information and travelling information of Xixia County which come from two different data servers via a standard Web browser and promotes spatial forest information sharing.展开更多
文摘相对于开源软件，非开源软件的倡导者们将源代码保密看作是一项重要的安全功能。他们的理念是源代码保密是阻止非法入侵者的重要手段，正所谓“Security through Obscurity(以保密实现安全)”。即使真的出现系统漏洞，源代码保密也可以将损害减至最小。通过保密手段实现系统安全的原理便是将源代码隐藏起来使它不能成为非法用户入侵的工具。这好比一扇被锁住的门，可以让很多企图偷东西的人知难而退，
基金the National 863 program (2003AA131020-06)the programme Young scientists from extra-European countries to Lower Saxony.
文摘For technical and other reasons there is a dilemma that data providers cannot find an appropriate way to redistribute spatial forest data and data users who need spatial data cannot access and integrate available forest resources information. To overcome this dilemma, this paper proposed a spatial forest information system based on Web service using an open source software approach. With Web service based architecture, the system can enable interoperability, integrate Web services from other application servers, reuse codes, and shorten the development time and cost. At the same time, it is possible to extend the local system to a regional or national spatial forest information system. The growth of Open Source Software （OSS） provides an alternative choice to proprietary software for operating systems, web servers, Web-based GIS applications and database management systems. Using open source software to develop spatial forest information systems can greatly reduce the cost while providing high performance and sharing spatial forest information. We chose open source software to build a prototype system for Xixia County, Henan Province, China. By integrating OSS packages Deegree and UMN MapServer which are compliant to the OGC open specifications, the prototype system enables users to access spatial forest information and travelling information of Xixia County which come from two different data servers via a standard Web browser and promotes spatial forest information sharing.
