What is GIS

As a managment and analytical tool, GIS can help us do a great deal. From mapping where things are to indicating density by geographical area, the scope of what you can do with GIS is broad.

Below are examples of what can be done with GIS. Consider your situation and figure out how GIS can be used by organisation and yourself.

Uses of GIS:

1. Map Location: mapping where things are allows us to find where we are, where we are going and where a feature is. Mapping locations also allows us to recognise a pattern with regards regularly occuring features. 

2. Map Quantities: mapping quantities allows us to understand activity or variable in an area. Mapping the most to least of a variable helps us make decisions and compare locations. Such comparisons could include crime stats, number of schools or percentage of people over 60 years of age.

3. Map Densities: Densities indicate the occurance of a feature or attribute of a location or area. Mappingdensity is useful where the concentration of heterogenous features is high, making visual patterns recognition difficult. Density mapping also allows feature and attribute mapping on a known and equivalent scale. Population maps are a good example of density mapping.

4. Proximity: Proximity mapping is simply idenifying features that are nearby to an identified features. This seems trivial, but when considering the possible flood area of a dam and identifying nearby features, like towns and national electircal infrastructure, help management and scenario planning.

5. Map Change: Mapping change is possible by comparing areas across the same variable but at two points in time. Such mapping allow behavioural understanding and antcipating future needs. The impact of an action can also be visualised when mapping change.

6. Ring-Fenced Activity: Identifying a particular area and identifying what features exist in that area and how quantities or densities change, allows us to understand a system. Specific action can then be taken for a specific area.

Using GIS has all the advantages of a management information system (MIS) coupled with the visual representation of data – remember that a picture tells a thousand words. Hence, using GIS as a management and analytical system is very powerful.

The question is “who should use GIS?” The answer is simple – everyone should!

Everyone has some form of location dependence within the management and analyses of their activities – whether business or recreational. Such location dependence gives rise to spatial and attribute data to manage sales, resources, productivity and to analyse product consumption by consumers amongst many other company activities within business. In a recreational environment, GIS is useful for finding your way when coupled with GPS, analysing race routes for a marathon and identifying preferred scuba diving or fishing locations to name a few.

Basically, everyone has a need and use for GIS – its just the extent that may vary.

Everyday uses of GIS that effect us

Some you know of and some you didn’t even suspect – but we are all influenced by GIS. Here are some examples:

1. Vehicle Tracking: this is one GIS service offered to create security and peace of mind that your car is where you left it. GIS is used for more than protecting your vehicle & is implemented by policing and security organisations worldwide to prevent crime and manage area security.

2. Courier Services: you enjoy knowing where your package is located while on route – again GIS helping you but also helping your courier company manage the logistics of moving your parcel along with all the others they handle.

3. You drive to work! Road infrastructure planning, maintenance & traffic monitoring is governed by GIS in most countries.

4. You receive your newspaper subscription – the wood used to produce the paper used for your newspaper was carefully managed by forestry companies to ensure optimum tree growth, management of environmental impact and to maintain safe forestry practices.

The uses and impact of GIS is so extensive that possible examples of our use can be related to almost all our daily activities.