Data Preparation Process Modeling

4.2.1. Database Design

Database design is an important part in developing an information system. The information quality resulted is depended on the quality of database management design. There are several steps that have been done for designing the database of forestry industry :

1. Data Preparation

Data preparation was carried out in order to design the database of forestry industry. Data preparation consists of standardization of spatial data and segregation of non spatial data tabular data. Standardization data was done to obtain the same format and scale of spatial data. The standard data then used to design map application on system proposed. Segregation of non spatial data was needed for structuring and designing database fields’ format. This step was carried out considering different source of data used. For accommodating the user needs, the field of tabular data used on the system proposed has been inventoried and discussed with the end users. Figure 4.4 described the standardization and segregation data used on the proposed system.

2. Process Modeling

In general, a process model is a formal way of representing how a system operates. A process model illustrates the activities that are performed and how data moves among them. Data Flow Diagram DFD is a common technique for creating process models. There are four 4 elements involved on data flow diagram i.e. process, data flow, data store, and external entity. Figure 4.4. Data preparation Context diagram is the first step in presenting data flow diagram of the system developed. Context diagram is a level 0 of process model and shows the overall system process as just one process. This diagram also shows the external entities sub directorates that receive information from or contribute information to the system. Figure 4.5 describes the context diagram of the developed system. There are three 3 potential user included, consists of : 1 Forest Product Manufacture Sub Directorate, uses the system to monitor, evaluate, and organize forestry industry data i.e. profile, license availability, workers, machine production used, environmental impact, financial health, and the location of industry; 2 Production Sub Directorate, uses the system to monitor, evaluate, and organize forestry industry data i.e. production, wood material requirements, and the location of industry; 3 Marketing and Industry Assessment Sub Directorate, uses the system to monitor, evaluate, and organize forestry industry data; especially in forestry industry marketing and also the location of industry. Figure 4.5. Context diagram level 0 of the developed system After the context diagram has been drawn, the next step is to decompose level 1 process, which shows all the major processes that comprise the overall system. Level 1 diagram show the major processes are interrelated by data flows and external entities sub directorates as illustrated on Figure 4.6. Figure 4.6. Data flow diagram level 1 of the developed system DFD diagram on Figure 4.6 describes the process of data on the system developed and the contribution of the end users sub directorate to the data processing. There are three 3 parts of main processes consisting i.e. input data, process, and the output of the system. The data flow begins with the input process for non spatial data forestry industry data report by the operator on each external entity through the system. All the data inputted then stored on the DBMS. In order to locate forestry industry and industry supplier material, plotting the location was set as the second process of the system. This process was done by operator on Forest Product Manufacture Sub Directorate and used GIS software, spatial data, and tabular data as inputted on first process industry profile data. For assessing the industry performance, the external entities Sub Director of Forest Product Manufacture, Sub Director of Production, and Sub Director of Marketing and Industry Assessment were used the system and data that have been inputted as defined on the first and second process. Referring to the overall process, there are several outputs provided, i.e.: 1 Information of forestry industry activities; 2 Forestry industry performance; 3 Location of forestry industry and material supplier; 4 Map of material distribution. All those output were used to monitor and evaluate forestry industry by the external entities.

3. Conceptual Model