Geographic Information System (GIS)

Sonya Puspitaratri And Nurul Rahmawati (2014) stated that the definition of geographic information systems always evolved, increased and varied. This can be seen from the many definitions that already exist. In addition, GIS is also a field of study of science and technology that is relatively new to many fields of science, and is rapidly developing. The following are some definitions of Geographic Information Systems:
a) GIS is a computer system that is used to enter (capturing), store, examine, integrate, manipulate, analyze and display data relating to the position on the surface of the earth.
b) GIS is a combination of hardware and computer software that makes it possible to manage (manage), analyze, map spatial information along with attribute data (descriptive data) with cartographic accuracy.
GIS is an organized collection of computer hardware, software, geographic data and personnel that are efficiently designed to obtain, store, update, manipulate, analyze and display all forms of information that are geographically referenced
Geographical information systems can be broken down into several subsystems as follows:
a) Data Input: This subsystem is responsible for collecting and preparing spatial data and attributes from various sources.
b) Data Output: This subsystem displays or produces all or part of the database output in both softcopy and hardcopy.
c) Data Management: This subsystem organizes both spatial data and attributes into a database in such a way that it is easily invoked, updated and edited.
d) Data Manipulation & Analysis: This subsystem determines information that can be generated by GIS.

2.2 Mobile GIS
System analysis (Gunita MustikaHati et al., 2013) states that Mobile GIS is an integration of software / hard work methods for accessing geospatial data and services through mobile devices via wired or wireless networks. In general, mobile GIS is implemented in two main application areas, namely Location Based Service and GIS for field activities (Field Based GIS). The following are things relating to the GIS mobile application:
1. Implemented on mobile devices with limited storage space, memory and resolution.
  2. Can be implemented independently (stand alone) by storing data in a mobile device (for simple applications), or adjusted to the server architecture (for GIS web applications).
3. The ability of mobile GIS applications, such as:
 a. Display or navigate.
 b. Identify.
c. Search or query.
d. Modify attribute values.
e. Giving a sign or redline. f. Modify geometry.
g. Integrate with office data.
4. There are two types of data, namely data collection (data collection) and navigation (navigation).
The advantages of the data collection system with mobile GIS are as follows:
a. Can be integrated with GPS devices, rangefinders and digital cameras.
b. The data collection system is very efficient, which is only with point and click.
c. Spatial data is managed in the reference dataset.

0 Response to "Geographic Information System (GIS)"

Posting Komentar