There are 4 components in GIS:
1: Data 2: Hardware 3: Software 4.users. As shown in figure of, components must be integrated to support the management and analysis of spatial mapped data. Data at the center of GIS system, while the computer components to the system support of data management analysis.
Data:
GIS components are dynamic, there has been rapid change in the computing industry as well as turnover of personal involved in GIS projects. For the reason, GIS developers are often in encouraged to adopt a data-center approach. Simply stated, a data as the central resources in "there"., Geographic information system. Through data analysis may be shared among multiple users and multiple hardware/software environments, the data is collected and compiled by a person or organization to support the goal of that users. The other components provide the support of processing data.
All data in a GIS are either spatial data or attribute data. As discussed above, spatial data tell us, attribute data tells us know who occurs; it tells as a "characteristics" in spatial data. Every :GIS provides the ability to store and manipulate both spatial data as the associated attribute data. Spatial data includes information pertaining to location of objects of interest, their distribution and extend adjacency, proximity and connectivity, verses, attribute data, or about features.
Hardware:
As for computer hardware, how to support on GIS components is a very nightly variable parts in the overall systems. Users may be will customize on their hardware environment to own individual needs. In such cases, are however, a manipulate functions on GIS must contain hardware to support data input, output, display, retrieval, storage and analysis.
Software:
A software is a highly dynamic part of GIS system with large number of software packages existing now. These systems are available in almost all types of hardware platforms and come with a variety of functional capability. The range in software options goes on generic turnkey system that are ready for use 'right out of the box' to customize installations of designed to support specific users needs, like trans cad. A GIS software tailor-made for transport applications
- In such cases sometimes array for hardware and software, selection and used in GIS can approach strategically.
- And the GIS software packages should be considered to carefully and consult the various reference, including the other users, vendors, and terminally analysis.
Users:
And the final component required to be true GIS users. One classified into the scheme users in two groups separated
System user: the system users are those persons who made actual hands on use of GIS hardware and software. These persons have advanced technical skills in GIS application problems solved. System users tend to the day by day to take responsible to solving system maintenance to keep.
End users: the end users are those persons who do not made actual hands on use of the system, but who do make an information generated to via GIS. End users are not necessarily possess of technical skills. However, they should be able to communicate and interact with system users in order to make requests for information, the limitations of GIS processing.
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