Question 1

What is GIS Software?

Accepted Answer

Geographic information systems, better known as GIS software, are tools that capture, analyze, and display geospatial data to make 2D or 3D maps. These tools act as asset management platforms for the geographic data they capture, meaning GIS technology has the ability to understand patterns and improve operations in land-based operations.  
 A GIS is a technology rooted in geographic information science that allows users to dig into geospatial data. The first step in this mapping technology is capturing data. These data types include cartographic, photographic, and digital data to provide a complete picture. GIS programs require both hardware and software, such as the desktop needed to display information. 
 Cartographic data is already in map form and includes information such as the location of rivers, roads, valleys, hills, and more. Data from photographic interpretation analyzes aerial shots of a site. Digital data is collected from satellites that show land use. 
 All varieties of data can be inputted into GIS mapping tools through data capture. As long as it has been digitized, it can be inputted into a GIS program. Once that data has been inputted, GIS technology can transform it into a map.

Question 2

Who Uses GIS software?

Accepted Answer

GIS tools power location-based services. This technology is prevalent in a number of other professions: 
 GIS Specialist – A GIS specialist is an expert in geographic information systems. They analyze the spatial data stored in the geodatabases within these tools to solve problems related to a specific site or area. For example, a GIS specialist can assess the geospatial data of a region to determine the best escape route and then have the responsibility of mapping out an estimate time needed during a natural disaster. These specialists can create maps of certain areas using GIS technology and use that information to perform duties such as locating special features within a landscape. 
 A GIS specialist can be a full-time career, as a person in this role can act as a consultant to organizations who can benefit from the data extracted from GIS software. While the majority of this work can be conducted remotely from a computer, GIS specialists are sometimes required to visit a site in order to compare the landscape to the data in the GIS system. Those seeking this career path can obtain a GIS certificate from an accredited program; many universities offer GIS degrees as well. 
 Urban Planner – An urban planner develops procedures and programs for the use of land. The outcomes are typically mapping out plans to build communities, accommodate growth, revamp local physical facilities, and more. For example, an urban planner might approve plans for a new school to ensure it meets the needs of a growing population. As a community grows and changes, urban planners are there to help manage economic, social, and environmental changes that may arise. Urban planners can be utilized for communities of any size—small towns, large cities, and entire counties. 
 A great deal of data is needed for an urban planner to make an informed decision. They must stay up-to-date on zoning codes, environment regulations, and legal issues. Urban planners must also stay attuned to the landscape in their area and can utilize GIS technology to analyze and manipulate data. GIS software can be used to overlay a land map with population density indicators, which could show the best use for a piece of land. While an urban planner likely needs to perform site visits, they may also utilize a desktop GIS to analyze this data from their own office. 
 Environmental Scientist – An environmental scientist assesses the health and stability of a given landscape. This includes a great deal of fieldwork tests and surveys to gather geospatial data, like soil, water, and air samples. The data collected is then analyzed for negative indicators, such as pollution. An environmental scientist’s findings can be collected into an official report that may be presented to policymakers or other organizations concerned about environmental issues. 
 Environmental scientists rely heavily on GIS applications to succeed in their work. These tools capture the geographic information necessary to effectively map out the health of a physical area. This mapping technology has the ability to capture data from all aspects of a landscape—aerial, water, land—and then display as a variety of different maps. These solutions can also map changes in a specific area, which is hugely beneficial to an environmental scientist as it can fuel a course of action or anticipate future land conditions. 
 Public Health Professionals – Public health professionals are dedicated to protecting and improving the health of communities. Those in this field are focused more on preventing disease and injury rather than treating it. Public health intersects with a number of more specific fields to improve the health of the community. Epidemiology tracks the distribution and severity of diseases, along with how to prevent them from spreading. Biostatistics applies statistical and mathematical methods to the analysis of public health issues. 
 Environmental health is concerned with the quality of food supply, water and air pollution, and disease prevention. This is where GIS tools come into play. The use of a GIS and the spatial data it captures can help public health professionals come to decisions as well as predict outcomes. For example, public health officials can use GIS technology to map out potential risk from a contaminated water source. A desktop GIS program can also display information such as drug usage in a certain area. 
 Law Enforcement – Law enforcement officers can track crime trends within GIS software using crime mapping, which maps, visualizes, and analyzes crime incident patterns within their jurisdictions. These crime hot spots can be identified through the usage of GIS programs. Crime analysts can use a desktop GIS to overlay data sets such as census demographics. With this information, police officers are able to identify physical locations and potentially understand the underlying cause of crime in a certain area. GIS mapping software can also be useful for allocating police officers during emergency situations.

Question 3

Why Use GIS software?

Accepted Answer

GIS software is vital for creating maps, but that is not the only application for this technology. These tools capture data that can be utilized by small, mid-sized or enterprise businesses in many fields. 
 A GIS helps users make more informed decisions. When working with a physical location, you need to understand every aspect of it—air, land, water, surrounding area, and more. A GIS captures this array of data, detailing various aspects of a landscape, and stores it all within one platform. Visualizing this data aids in identifying areas of opportunity and potential issues, such as the best route for an evacuation during an impending hurricane. 
 The geospatial data stored within these platforms even helps provide answers about things other than the physical landscape itself. Demographics of the surrounding population, social, real-world business problems, and political information can be gathered using a GIS. Features such as overlaying and data visualization connect the dots and create relationships between seemingly unconnected qualities, such populations with geographic features. For example, if a business needs to open up a new storefront, GIS software can be used to find a site of land near a highly populated area. Data can then be manipulated to account for inevitable population change in the surrounding area. 
 GIS software is specifically designed to visualize data. Reading and understanding statistics and data can be incredibly challenging. Data visualization is a key component of GIS technology, which means that the inputted data will be presented in a clear and comprehensive manner. Using a GIS solution, you can layer your datasets into one image and find the connections between each dataset. Bringing this data to life also allows you to view it from a different perspective, which can provide a fresh insight on a potential problem needing to be solved. You can create multiple maps within GIS platforms, which enables you to track and visualize the change in a certain area over time. 
 GIS technology can assist in conserving natural resources. GIS software has the ability to manage and maintain agricultural, water, and forest resources. These tools easily manage data on forest conditions as well. The geographic distribution of water resources can be analyzed through GIS technology. These two resources are also connected—as tree cover tends to decrease stormwater runoff. 
 GIS software allows for better geographic information record keeping. Many organizations are required to maintain thorough geographic records, such government and environmental science agencies. GIS systems are at the foundation of creating policies such as zoning laws, population censuses, and land ownership. Record keeping is vital when creating and upholding these laws, and GIS technology can store the geographic information necessary. 
 GIS technology can also track the spread of infectious diseases. On top of mapping trends in geographic features, GIS technology is used to follow trends that relate to the spread of disease. Users can leverage desktop GIS solutions to compare geography with other relevant variables and predict where an infectious disease might spread next. This data enables on-the-ground personnel to quickly work to save lives of local residents. 
 GIS software helps automate previously tedious geographic tasks. Before this technology, gathering data needed for any land, environment, map, pipeline, or city planning could be incredibly time consuming, due to the fact that one platform was unable to capture and store data from various sources. In addition, each data sample was collected and stored individually. However, GIS programs act as a repository for this data and convert it into the correct format, if necessary. GIS technology then takes this one step further and allows users to also design, update, and edit in the same platform where their geographic data is stored. These solutions also provide analysis tools, which gives organizations more time to focus on other urgent and critical tasks. 
 Governments can use GIS software to plan more cost-effective communities. Governments rely on thorough planning when it comes to building and expanding their communities. However, government organizations, especially smaller municipal ones, can face difficulty when it comes to the economy. Expanding a community while sources are diminishing gets expensive. GIS technology provides a way for government organizations to expand their communities in the most cost-efficient ways possible, as the data provided by GIS software allows them to make more informed choices about decisions such as land usage and locations of physical facilities. Governments can utilize a free GIS solution to continue to drive costs down. 
 Districts can create more efficient schools with GIS technology. A common issue within communities is needing to redistrict school boundaries as the local population ebbs and flows. GIS programs capture and store addresses for all students at the school. Using feature-based proximity tools, you can manipulate the borders of these zones and a GIS relates the student counts by grade of this proposed boundary. Even after school district zones have been nailed down, these programs can continue to benefit schools. School administrators use GIS technology to analyze the distance students walk to school. If a student lives a certain distance away, GIS tools continue to analyze the data to determine which students are eligible to take school buses. As schools may not a lot of budget dedicated to non-essential technology, they can utilize a free GIS platform for these tasks. 
 Planning for for natural disasters can be done using GIS technology. One of the main uses of this software is protecting the environment. The flip side of that is protecting citizens from potential dangers of their local environment. GIS tools help with risk management by assessing which areas are at risk for natural or man-made disasters. Communities can then take this data and develop preventive measures. And when natural disasters are unavoidable, GIS technology can still help. These tools aid in the planning of emergency evacuation routes and help estimate the damage from floods. In addition, GIS helps local governments document the needs for federal disaster relief funds.

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Category Stats (Sep 2026)

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Best GIS Software - Page 19