24 model, or prototypes, of new application in an interactive, iterative process that can be used
by both systems analysts and end-user. Prototyping is an interactive process that combines steps of the traditional systems development.
Figure 8 . Prototyping Development Stages O’Brien, 2002
The advantages of prototyping are users are involved in design and captures requirements in concrete form. Prototyping makes the development process faster and
easier for system analyst, especially for projects where end-user requirements are hard to define.
2.10 The Stage of Activity
In this research, the following step will be taken:
1 Need Assessment, this stage is needed for getting initial information before
developing the system, and will do through focus group discussion among stakeholders in environmental sectors.
2
Problem Analysis, in order to understand several problems faced by the
government in environmental management, in this stage try to know the root of problems and get some alternatives to solve it.
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3
Understanding the existing condition, to understand the procedure and
monitoring activity of industrial pollution. 4
Data Mining Collecting, to collect the industrial data and information of
pollution 5
The general design, to design of Graphical User Interface GUI related to
spatial information system. 6
Database Structuring, to develop the structure of database industrial profile
and pollution. 7
Preparing the Formulation, to prepare the formulation which is used by
system according to the several criteria and parameters. 8
System Analysis, to develop the system analysis based on user needs and data
base design conceptual design, logical design and physical design. 9
Fuzzy System Design, to develop the qualitative decision analysis according to
stakeholders opinion related to river load condition 10
Coding the spatial program, writing the code for the sub system of spatial
information using digital map. 11
Coding the Non Spatial Program, writing the code for the sub system of
database non spatial information: industrial profile, pollution etc. 12
System Prototype, to make system prototype through to combine between
spatial and non spatial system to the one application system, called IPMS- System
Industrial Pollution Monitoring Support System.
13 System Testing, by using Beta Test to know the performance of system
prototype until valid. 14
Data Inputting, to input data and other information related to measurement
result from industry outlet and river body. 15
Reporting, according the printout of system as output the system and end of
result, the result will write down as a complete thesis.
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III. METHODOLOGY
Spatial-Decision Support System was developed to support the Government to monitor the industrial wastewater and the river water quality. As an information system,
this system was developed by using SDLC approach System Development Life Cycle.
3.1 Need Assessment
In the beginning of the analysis and general design phase, intending to elicit an understanding of the scope of a study, a needs assessment was performed to understand the
project process, to know what they want to accomplish with the automation, and to involve them at an early stage of the implementation. There are two kind of analysis in this stage,
e.g.: system analysis and data need analysis. System analysis, means that the principle of database structure based on the output plan. Data Need Analysis, means that in this
analysis will be done identification of data type, data availability, data format, group of datavariable, and data reading technique. Data will be used in database structuring should
be made in the same format, which can be done going through standardization all kind of data. There are some questions arise during the need assessment of spatial decision support
system for industrial wastewater monitoring. The questions are shown in Table 4. Table 4
. Question from need assessment
User as decision maker Researcher
How to do the effective monitor- ing industrial and river water
pollution? • What is the existing information of pollution was
covered? • It’s complete or not?
• Can we display, share or access those data? • Can we make an analysis with those data?
