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The many possibilities of applying the Web GIS at present

The subject to comment today is the Web GIS. For the 'uninitiated', it could simply be translated as 'GIS on the Web', but what does this really mean? What are its scope? Why 'has many possibilities of application' as stated in the title of this post?

There are five reasons given by Eric van Rees in his article, to demonstrate (and convince us) that the Web GIS is currently the evolution of that 'old school' GIS concept; and, moreover, that this change involves Variaciones not only in the form of the how to work the GIS but also what requirements it must have in order to complement the use of geospatial technology.

It would also be valid to ask if we are updated on this topic, as we suppose we should be, we know or we can project ourselves to intuit what will be the future of the Web GIS as such.

GIS is more than Cartography, initially postulates the author, and then states that "a map is no longer the ultimate goal of the work, but rather can be the starting point of a later and broader analysis." This conception of the map as 'a part of the puzzle' leads us to an approach based on the development of projects of which GIS would be a more working tool. What kind of projects? Apparently, from different and years ago unimaginable areas as we will refer later.

And it is that GIS as such has, definitely, passed into the major leagues since those distant late 60's when it saw the light. With each new decade, change took hold: from knowledge "Where is what", Merely descriptive; to know both the "What and why "of an approach in which something is prescribed or determined with clarity and accuracy, which sets a stage for completely new geospatial tools and concepts.

GIS now requires 'collaboration'. In this evolutionary change, the author postulates again, individual work is relegated. But it would be worth stopping at this point because he says that for the GIS desk work 'of old' either a 'skilled cartographer' or a 'GIS analyst' was required. This already gives us the thread in the discussion about the following post to comment that is about the surveys and the works in GIS. It would be interesting here to ask (just as an advance) in which of the decades of evolution of GIS we are currently working in each of our countries... I better leave it here because we deviate from the main theme.

Van Rees states that "today, GIS workers need to collaborate with other GIS users while they are in charge simultaneously of cartographic projects ". Here we highlight the word 'simultaneity'. This sort of 'multi-tasking' level project in which definitely a single person does not could (note the conditional) perform the complete work in full. This is very logical. Simply because the boundaries of the conventional use of GIS have been expanded, greater knowledge is required in diverse subjects. The author is emphatic: "This shows that GIS technology is becoming an industry less and less exclusive (less than niche, if we translate it literally)."

The current GIS is focused on communities. This new statement correlates with what has been expressed previously. Reference was made to an environment of simultaneity in which different themes are dealt with and also of the new environment in which scenarios are established in which new tools and concepts are accommodated. Well, how many more? The author tells us that "with more and more geospatial technology available, it is imposible learn every tool present in the market "and advises," it is better specialize and focus in a set of themes or applications and take part in the community that represents them. "

This is equally reasonable. Not knowing that the information is constantly updated, that what we know today will be almost-almost obsolete in a short time, in fact, out of date. This is the permanent 'update' that each professional must take on as a challenge to continue 'in the career'. Information is on the Internet and we need time and perhaps neurons necessary to cover everything. The reality is that we can not. That's why we mention the collaboration initiatives GitHub, GeoNet, GIS StackExchange and other tools like ArcGIS Hub, which we now mention while noting that the author alludes more than all ESRI products ... Well, suspicions aside, we agree with his reasoning.

Programming and GIS are now inseparable. We come to one of the 'core' postulates of the analysis. Maybe we should have used the literal translation 'elbow'(we already get where we're going, right?). Although Van Rees notes that, "programming languages ​​are not intended to replace but rather to expand geospatial technology", it is clear that there would be no other way to make the leap from the 'map - geospatial analysis' to the current Web Service without 'elbow' in between. And first of all he talks about ArcPy, then about the new API for ArcGIS, mentioning in passing the SciPy Stack… Libraries and packages based on Python! (Pitoneros ... Present!) And note that we have already commented about prioritizing learning in Python.

But, let's not forget, we require show and share our information. Then they appear Jupiter Notebooks and the package manager Anaconda to improve collaborative workflows.

But how can a web developer use GIS technology in an understandable way for him? Answer: through Web APIs and programming languages. So the GIS community has adopted JavaScript, Python and R. Let's be vigilant then, and keep in mind towards which communities we should approach.

Desktop GIS has become part of the Web GIS. Beginning with an allusion to Google Maps for the 2005 year and although Google, as the author points out, focused more on the consumer market than on the professional geospatial, the so-called "GIS industry" was able to learn valuable lessons from Google's work.

Now, what do we properly refer to as the "GIS industry" or "geospatial industry"? Is it correct to say that any field / domain that uses spatial information and maps is part of the geospatial industry?

Yes, indeed. We are talking then about cars, connected bicycles, UAVs, augmented reality, that is, all those technologies that have spatial data and maps, both internal and conventional, as one of their main sources of data. Something really exciting and revealing.

What was learned? It was learned that those technologies could be integrated to allow the evolution of geospatial technology. Specifically the use of mobile, cloud programming, analysis of the big data, data science as well as business intelligence, all resulting in a cloud infrastructure that is inextricably linked to the uses of GIS locally. In this way, it exemplifies the author, you can access GIS components in the cloud through a web browser, and perform geospatial analysis using Python.

This analysis is only the beginning of further discussions. In the inkwell are the GIS in the cloud, but especially the WebGIS in the future. That 'smart' future where WebGIS is much more integrated into daily life in that future of 'smart cities' that many already envision and towards which we must be prepared to take part.

https://www.spar3d.com/blogs/all-over-the-map/many-faces-todays-web-gis/

Golgi Alvarez

Writer, researcher, specialist in Land Management Models. He has participated in the conceptualization and implementation of models such as: National Property Administration System SINAP in Honduras, Management Model of Joint Municipalities in Honduras, Integrated Cadastre-Registry Management Model in Nicaragua, Territory Administration System SAT in Colombia . Editor of the Geofumadas knowledge blog since 2007 and creator of the AulaGEO Academy that includes more than 100 courses on GIS - CAD - BIM - Digital Twins topics.

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One Comment

  1. Excellent article on the SIGWeb (WebGis), I share many opinions on this subject, especially the fact that the main product of traditional GIS were for many years static maps, and that in these globalized times, maps are now are dynamic and borderless, being fed by many types of geodata, from different sources and sources, without many technical complications.

    Greetings.

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