DFD Level 0 4.3.2. DFD Level 1. Data Flow Diagram Level 1 in Figure 2 contains the core processes that exist in the system, and there are three processes complete, namely: a. Login Admin, as checking the admin login to get access rights to manage database content and manage the system. Every time the admin logs in, the data entered will auto check with the database. If the data same as the data in the database, then the admin can access to manage database content. However, if they are not the same, the system will refuse users from entering. b. Maintenance Data, this process is owned by the admin to handles all access related to managing data displayed on the website. Admin can manage data such as adding data, changing data, deleting data, and so on, as needed. c. Information Request, this process is owned by tourists and is used to request the system to provide information about some data such as event data, travel data, and map data for tourist destinations.

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... level 0 is a basic description of the Bengkayang Regency Tourism GIS data flow, which will decompose into a more detail system. This DFD level 0 has two entities, and one process shown in Figure 1. Figure 2 contains the core processes that exist in the system, and there are three processes complete, namely: ...