Cloud GIS – Pros and Cons

GIS CloudEverything these days seems to be heading to the cloud. You can store your documents, images, contacts, calendars, presentations, articles, accounts, everything in the cloud. So it just seems logical that GIS is also heading that way. Most of the leading GIS vendors have developed Cloud GIS solutions or certainly thinking about it and a growing number of private companies are also dipping their toes in the market. This article has not been written to compare the various solutions on the market, although I may look at doing this in an upcoming article, but just to look at some of the broad advantages and disadvantages of cloud GIS.

Having said that, some of the big players currently include Map2Net, ArcGIS Online, GIS Cloud, MapBox, Mango Map, CartoDB and MapInfo Stratus. I am sure there are many more on the market or about to hit the marketplace, so do you due diligence before jumping into this emerging way of getting your GIS out to the world.

Advantages for Cloud GIS

  • Data Access
    • Access can be via any internet connection, anytime, anywhere. I see this as both an advantage and a disadvantage, if you have a good internet connection then it is great but if you do not then it will quickly become a source of frustration for your users.
  • Distribution
    • If you have a range of remote users then cloud GIS makes the distribution of your data, analysis and systems very simple. No need to send data using DVD or downloading large datasets to update a local server.
  • Data Capture
    • Having a cloud GIS allows data capture in real or near real time to be displayed directly onto your system. There are also many successful applications of where data has been captured by the general public and verified by users. One such success story is open street maps.
  • E-commerce
    • The ability to sell your data or online services to a wider audience can open up the income streams for your organisation through cloud GIS.
  • IT Management
    • The need to have dedicated GIS Administrators will be reduced as you can outsource that to the cloud GIS hosting organisation


Disadvantages for Cloud GIS

  • Data Access
    • Access can be via any internet connection, anytime, anywhere. I see this as both an advantage and a disadvantage, if you have a good internet connection then it is great but if you do not then it will quickly become a source of frustration for your users.
  • Security
    • Security is an important aspect of any system and you will need to make yourself sure that the cloud GIS hosts have good security in place so your data is not accessed by users who should not be accessing it.
  • Data Volume
    • GIS data has always been big, taking up gigabytes on your own server. If you move to a cloud GIS solution then there is both the time to migrate the data to the host server and also for end users to access and download. There is a lot of clever sampling software out there for web-based GIS so the end user may not notice and issues if just viewing but downloads maybe a different issue.
  • External Hosting
    • This can be a major concern as the cloud GIS hosting organisation may not have your best interests at heart. They are a business after all and in it to make a profit but they will also be striving to provide you with a valuable service so they do not want things to go wrong.
    • What sort of back-up and redundancy systems are in place with your cloud GIS host. Make sure that they are not backing up your data during your business hours or if they are that it does not impact on the delivery of your service. Remember that cloud GIS servers can be based anywhere around the globe and what is midnight for them might me 10am for you.
    • Is the cloud GIS host offering you a dedicated server, if not who else is sharing it. What sort of load is there system but for.
  • Lack of Control
    • Another downside of cloud GIS, is the lack of control you may have over the way your data is used, displayed, manipulated and analysed. To add a new function or layer may not be as simple as just loading a new dataset onto the server.
  • Data Format
    • What formats is the cloud GIS application serving the data out in. Do you need to reformat your data?

There are a lot of advantages and disadvantages to cloud GIS but it looks like it is something that is here to stay and maybe worth looking at as a way to simplifying the needs of your organisation and the needs of your users. Look for a service that meets your needs, your data formats, your end users and the level of control you want.

source: Empowernetwork

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Apple Buys Another Public Transit App – Embark

EmbarkApple is trying hard to improve its iOS Maps App user experience. While the app itself is pretty decent (as you could imagine from Apple), the key value to users – geographic data is Apples  Achilles’ heel. Lack of proper points of interest, not accurate real-time traffic, bad routing… this is only a part of Coupertino sins which makes it far behind Google and Nokia.

Over last year Apple was doing a lot to improve the situation. It acquired several start-ups, hired a lot of experts from all around the world and is even planning to ask users for help. In July Apple bought location-based trasit app Hot Stop which was providing free door-to-door mass transit, walking, biking, and taxi directions for over 1,000 transit agencies in over 750 cities around the world. This week apple bought Embark which was offering free app with offline public transport info. Although Apple never discloses the details of the deal saying:

Apple buys smaller technology companies from time to time, and we generally do not discuss our purpose or plans.

it is clear that they are trying to integrate public transport feature in its apps. I guess that we will learn some details when Apple will launch new iPhone (on the 10th of September). What’s the lesson from Apple’s mapping challenge… Apparently creating a great global map and navi app is not that easy as one could expect.

 source: Jessica Lessin


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