2.2.1. Data Management
The data management includes a specially constructed database or set of files that contain relevant data for the decision situation and is managed by a
database management system DBMS. Data can also be obtained directly from the corporate data warehouse, from regular databases, or from other sources.
2.2.2. Model Management
Model management includes software with financial, statistical, management science, or other quantitative models. These provide the systems
analytical capabilities and an appropriate software management program to manage the models. Some of the models are preprogrammed, while others are
built by the DSS builder or end user.
2.2.3. Knowledge Management
The knowledge management subsystem can support any of the other subsystems or act as an independent component, providing knowledge for the
solution of the specific problem. This subsystem is available in only some DSSs.
2.2.4. User Interface
The user interface subsystem enables the user to communicate with and command the DSS. Most DSSs have graphical user interfaces.
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III. METHODOLOGY
This section describes the materials and the methods used in designing, creating and implementing Mining Rehabilitation Bond System of a mining area.
3.1. Time and Location Selection
The research has been conducted from April 2005 to January 2006 at Department of Energy and Mineral Resources DEMR, Jakarta and MIT
Research Laboratory, SEAMEO-BIOTROP, Bogor. For the purpose of the research, PT. Newmont Nusa Tenggara NNT was
used as study case Figure 3.1, as suggested by DEMR, therefore the data was
collected from this company as well. This is a surface mining company that exploits copper and gold located at Batu Hijau, West Sumbawa Regency - West
Nusa Tenggara Province. It has almost 1,900 ha opening area, which consists of 28 ha main pit and supporting area for the rest, where should has warranty to
manage annually. The research area is delineated and focused on the development of DSS
for determining Reclamation Bond of PT NNT. This system is supported by company mining data whether technical, non-technical, spatial, non spatial, and
financial, which are manipulated and presented by using some empirical formula on a database and model based management systems.
Figure 3.1 The Mining Company PT Newmont Nusa Tenggara Location Map
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