Graphical User interface Hardware Software Requirement Source of Data

31 Hybrid architecture manages geospatial data independently and in different software module from the non-spatial data Worboys and Duckham, 2004. Spatial and non-spatial data in the designed industry and river database have to be linked up for better analysis and visualization of desired output. The link is provided by interface with connectivity function to other related database. Non-spatial database will be designed in MS Access and link up with the spatial data through ActiveX Data Object ADO. ADO is familiar to database programmers using Microsoft Visual Basic. Figure 13 . Hybrid system design

3.6 Graphical User interface

Spatial DSS Application Development - preparing applications identified in the Needs Assessment, which require additional programming using the macro language or other supporting programming languages. Several models have been introduced for system development. In this research used prototyping model. Prototyping is the rapid development and testing of working model or prototypes of new application in an interactive, iterative process that can be used by both systems analyst and end user. Prototyping makes the development process faster and easier for system analyst, especially for project where end user requirements are hard to define O’Brien, 2002. 32 Graphical user interface is an application that can be used by users and it has specific functions. The system development can be integrated and operated in a personal computer. The interface has been developed using Microsoft Visual Basic and supported by database reference ADO and several ActiveX components, i.e. ESRI MapObject.

3.7 Hardware Software Requirement

The hardware used for this study is one unit of personal computer with Pentium IV processor, 512 MB RAM and 40 GB hard disc. This system was developed by using several software employed to accomplish this research are shown in Table 5. Table 5 Software Components will be used No Software Function 1 AutoCAD Map 2000i Preprocessing raw digital data in dxf format. Converting from dxf into shape format. 2 ArcView GIS 3.3 GIS application Spatial data analysis, Viewing and updating attribute data. 3 MapObject Ver. 2.1 Active X Developing user interface 3 MS Access Database application Developing attribute data, Storing database as tables. 4 Visual Basic Programming software Developing user interface and database programming 5 Crystal Report Ver. 9.0 Designing The Output Report 6 ERMapper Ver. 6.4 Processing the satellite imagery 7 MS Visio Create the Flowchart ER Diagram

3.8 Source of Data

Mainly the spatial data used for this research acquired from Bakosurtanal. There are two kinds of data, i.e.: 1 Non-spatial data based on water quality measurement 33 2 Spatial data: - Vector: administration boundary, industry, river network, road,. The sources of secondary data from: 1 Current data from PROKASIH Clean River Program 2 The government Regulation Document 3 Monthly Report from Industry 4 Other sources of data

3.9 Public Perception Processed with Fuzzy Method