A Geographic Information System (GIS) is a computer system designed to store, manage, analyze and visualize geodata, such as information about locations, natural environments, infrastructures, populations and economic activities.
GIS uses geodata to enable the creation of interactive maps, environmental modeling, territorial planning, environmental monitoring and decision-making in a wide range of industries and fields of application.
GIS is used in a variety of sectors, including land use planning, natural resource management, agriculture, transportation, crisis management, defense, public health, and the environment.
Common GIS features include:
- Storage of geodata in compatible database formats.
- Visual presentation of geospatial data in map form.
- Spatial analysis of data to detect patterns and spatial relationships.
- 3D surface modeling for elevation and terrain analysis.
- Integration of georeferenced data from various sources, such as satellite images, GPS/GNSS surveys, and various sensors.
Geodata sources are varied and can include official sources, unofficial sources, and user-collected data. It is important to verify the reliability and accuracy of data before using it in a geospatial analysis.
GIS can be used to solve complex geospatial problems by providing accurate geographical information, which facilitates informed decision-making. GIS can also help communicate and visualize geospatial data for non-technical users through maps and intuitive visualizations.
Designing a GIS requires mastery of geodata, computer and technical solutions, and methodologies to ensure the quality and sustainability of geodata. The main steps are:
- Define the objective: Before designing the GIS, it is important to define the area concerned (municipality or group of municipalities) and to define the themes to be addressed. Of course, the GIS can evolve over time as needs develop.
- Gather the data: Collect the necessary data and organize it logically. All geodata must be in the same reference system (MN95 in Switzerland).
- Choose the software: There are many GIS software available on the market, each with its own features and capabilities. Choose software that best meets the needs and budget.
- Create data layers: In a GIS, data is organized into layers, either points, lines or polygons.
- Create maps: Using GIS software, create maps by combining different data layers.
Our team of geomaticians has expertise acquired over many years to guide you in the development of your communal or corporate GIS.
The project startup involves defining: the software, the computer architecture, the centralized storage of geodata, the update and exploitation procedures. Newis can support you in this approach and provide you with all the keys for judicious and tailor-made choices.
It is possible to start small, leaving the infrastructure at Newis and visualizing the themes via the MyMap GeoPortal
Exploitation of geodata
The information collected during surveys must be structured and organized for easy consultation of geodata in the GIS. It is then easy to produce maps with numerous symbologies in order to fully exploit the data and use them as daily tools for business problem-solving. Newis brings its expertise to the construction of these maps, the realization of spatial analyses, and the creation of clear and concise visualizations of the results.
Visualization of geodata
The ultimate goal of the GIS is to make the acquired geodata available to the widest possible audience. Once you have analyzed your data, use your GIS to create clear and concise visualizations of your results. You can share your results with others by exporting your maps and analyses in formats compatible with other GIS software or by publishing them on the web. Newis provides business tools to facilitate the dissemination of results.