Rabu, 14 Januari 2009

Data Management and GIS (2)

Data Management and GIS...

try to understand job descriptions as Data Management and GIS...

Definition of Data Management :
Data management comprises all the disciplines related to managing data as a valuable resource.

Data Management Usage :
In modern management usage, one can easily discern a trend away from the term 'data' in composite expressions to the term information or even knowledge when talking in non-technical context. Thus there exists not only data management, but also information management and knowledge management. This is a fairly detrimental tendency in that it obscures the fact that is usually always plain, traditional data that is managed or somehow processed on second looks. The extremely relevant distinction between data and derived values can be seen in the information ladder. While data can exist as such, 'information' and 'knowledge' are always in the "eye" (or rather the brain) of the beholder and can only be measured in relative units.
What am i doing till now...???

A lot of data being collected from field and being converted to digital data (from paper based)...
All digital data (spatial and non spatial data) are collected will help us to summarize, analyze, and managing data for research purposes because all data are valuable.

How do the data management ???
Answer : We can use Geodatabase in Geographic Information Systems (GIS)...

In this case, Geographic Information Systems (GIS) is the best solution and plays an important role...

What is a Geodatabase ???

A geodatabase is a database designed to store, query, and manipulate geographic information and spatial data. It is also known as a spatial database.

Within a geographic information system (GIS) a spatial database is one component that can be used to store and manipulate data.

ESRI says :
The geodatabase not only defines how data is stored, accessed, and managed, but it can also implement complex business logic such as
* Modeling of spatial relationships between data (e.g., topologies, networks, and terrains)
* Data validation (e.g., subtypes and domains)
* Long transactions (e.g., versioning)
and then, What is GIS??

"the Father of GIS" -Mr. Stan Aronoff, in his book: Geographic Information systems: A Management Perspective (WDL Publication:1989)

it stated that: “a GIS is designed for the collection, storage, and analysis of objects and phenomena where geographic location is an important characteristic or crucial to the analysis. While handling and analyzing data that are referenced to a geographic location are key capabilities of a GIS, the power of the system is most apparent when the quantity of data involved is too large to be handled manually. There may be hundreds or thousands of features to be considered, or there may be hundreds of factors associated with each feature or location. These data may exist as maps, tables of data, or even as lists of names and addresses. Such large volumes of data are not efficiently handled using manual methods.

A GIS is a computer-based system that provides the following four sets of capabilities to handle georeferenced data: 1. input; 2. data management (data storage and retrieval); 3. manipulation and analysis; and 4. output.

source: http://www.thegeom.com/2007/09/05/introduction-to-gis-summarized-from-aronoff-1989/

------------ in this project, we can say that GIS is "SMART MAPS" because GIS can handle and analyze large volumes of data that are referenced to a geographic location ----------
when all data have been input to a GIS, they can be easily manipulated and analyzed in ways that would be too costly, too time-consuming, or practically impossible to do using manual methods.


GIS help us in Data Management .............

Data Management and GIS is one......

it's my position right now....
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Best Regards,

Aji Putra Perdana

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