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Recently I learned Tableau Visualization tool but I am not able differentiate between Tableau and QlikView.
could any one detailed me what's functional difference, I take round in google so please don't reply copy past from google.
Not a detailed functional difference analysis, no, but an overview as I see it.
Tableau is, as you say, a visualisation tool - it has some fairly simple data loading capabilities, but for complex environments relies on other data extraction tools like Alteryx. Tableau focuses on the front-end with things like a wide range of chart types, recommended chart types based on the nature of the data. That said, it is not a fully-responsive web-based product - you design separately for mobile and other different screen resolutions.
QlikView it's fair to say isn't as "pretty" as Tableau, but it does have a very powerful data extraction script language as well as in-memory associative technology for very fast data analysis. It's also not fully-responsive in a web browser - although it does have some limited mobile functionality that works out of the box.
You should also look at Qlik Sense (essentially the successor to QlikView) which seems to me to be the best of both worlds - it's visually appealing like Tableau but has the powerful ETL tools and in-memory technology of QlikView.
Hope that helps. I think the Gartner BI 2017 report just came out, so it'd be worth looking at that for a broader overview of capabilities across BI tools.
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We're evaluating ITextSharp (now known as IText) for producing pdf documents. This will be used in our websites which will be published across a load-balanced solution amongst several servers.
According to Itext, this will require a production license per server (we're not open-source) in our load balanced configuration, as well as uat and developer licenses. This is obviously a considerable investment.
Could anyone recommend any alternatives to reduce the costs?
Also, is there a pattern we could adopt to minimise the migration effort of the existing website prototype if we were to use another product?
You could change your architecture a bit and have a dedicated PDF generation server. You'd then need to boil your requests down to something that could be sent between the servers. Depending on your goals, that could be something relatively simple, such as a user ID and a report name, or complex (text layout, that image there).
As far as distancing yourself from the commercial iText, there are two options.
1) Use the older MPL iTextSharp. It won't have all the latest features and bugfixes, but it's hard to beat the price.
2) The "wrapper" design pattern. Build a relatively generic interface, and have your current implementation of that interface sit atop iText. If you later need to swap it out, you're rebuilding the glue code, not your whole app.
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I keep finding -quite interesting- job positions that require knowledge of this specific framework. My question is: It's worth gaining laboral experience at TIBCO? Besides the job search related sites, where can I find trustful information regarding the current use of a framework/technology?
And, on which factors does usually depend the success of certain programming framework amongst others?
I want to figure out if TIBCO will have a long-term future. Thank you for any help you can provide on this subject.
(Feel free to edit if the question(s) can be formulated better ^^)
TIBCO BusinessWorks (I assume you are talking about that specific product, out of the very large TIBCO product selection) is an integration software. As such, you should learn it if you are interested in working in the integration field.
FYI : Integration requires a lot of soft skills and complex problem resolution techniques. It is mostly related to data routing and transport (think: REST-enabling Mainframe software).
As for selecting TIBCO products, I personally believe the company to be a great integration software provider.
TIBCO is a lot more than BW ! Many products deserve attention, such as EMS, Service Grid, BPM, MFT, Spotfire, etc.
How popular really is TIBCO ?
It might be simplistic, but I like to use Google Trends for that sort of questions...
TIBCO vs Websphere vs webMethods vs Spring int : TIBCO 2nd, Websphere 1st (dropping rapidly)
TIBCO alone (a steady slow drop, but still strong)
TIBCO EMS vs MQ vs Active MQ vs RabbitMQ : EMS steady (but not high), RabbitMQ rising
Some topics like TIBCO Spotfire have some more traction...
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I have been evaluating DNN over a few months. It has it´s pros and cons. I find it hard to evaluate systems by reading articles and don´t have time to check them all on my own.
What are your general feeling about this?
As my background is with .net, which system would you choose?
Also, does anybody know if these pages at stack overflow is based on a CMS and if so which?
Since everyone would rather spend more time criticizing your post than answering it, I'll give it a shot.
You have a few options with building a portal. Either go with an established, open source portal (like DNN), look into some paid solutions or build your own.
Open Source - I've worked with DNN and MojoPortal. DNN is a little slower and has a few more requirements to develop skins and modules, but it has A LOT more features and some of the free/paid modules are really cool. Overall, DNN wins here, but if you don't need a large portal and you want to keep development really simple, MojoPortal might be better. MojoPortal has a few nice features that makes it easier to configure.
Open Source (Other) - There are tons of them out there. Orchard is one I'm thinking of because I'm interested in MVC. But, it's still young in terms of features and support.
Umbraco - I can't really speak to this because I have not used it, but it does have some popularity.
Build it - This is an option and allows the most flexibility, but it takes a lot of time and so many features that are built into these portals could be left out. Role based access, page management, page/module permissions, downloadable modules, profile/profile properties, file management, skinning, acct management, menu management, event logs, etc
I left out non .NET solutions like ones based on PHP, Grails, etc because you are a .NET developer. There is plenty out there, but sticking to .NET will help speed your development up.... unless you are just wanting to learn something new.
Hope this helps.
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i am working as reports developer using Cognos BI and i want to learn any one of below BI tools.
Microstrategy
WebFocus
Can any one suggest the best tool from above to learn in career perspective.
Thanks,
Phani
Disclaimer, I'm a former MicroStrategy employee and I never worked on WebFocus.
My suggestion is to go with MicroStrategy, first of all your knowledge of BI and SQL will came very handy to you to understand how the MicroStrategy SQL engine works and how the objects you create in MicroStrategy will be transformed on the database side.
So, if you have your back(-end) covered you can focus on the other key features of MicroStrategy: in memory cubes, possibility to connect to MDX sources or webservices, advanced analytics and above all the mobile part.
If you are more interested in the nerdy stuff (maybe it's not your case, but I came to BI from the SQL side) the focus on the Mobile and Data Visualization (MicroStrategy Visual Insight) can be a bit appalling, but I believe that to have an exposure to the front-end components is important to see the big picture.
Anyway career wise MicroStrategy looks to me a more wise choice than WebFocus, but as I said at beginnin my perception can be biased
Offcourse Microstrategy.
Its an awesome tool provides the vast ability to analyze huge amounts of data.
Microstrategy provides flexibility to the users, good scalability, nice user interface & impressive iPad capabilities.
And career is always green compared to WebFocous.
My vote goes for Microstrategy!
Thanks
I've always tried to make decisions like this, by focusing on what will be best for my users, rather than what would be best for me.
To support this type of focus with the question at hand, take a look at things like strength/longevity of vendor, scope of product offerings, simplicity of implementation/maintenance, number of back-end databases/appliances supported, number of/type of report/graph formats, scalability,...
Good luck with your decision!
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I am looking for ideas for my undergraduate project and I quite like the area of High Performance Computing , has got a lot of scope for research . Are there any ideas / already existing open source projects worth looking at ?
One hot field right now is in the area of algorithmic trading. You can sign up for $3000 (if you're under 21 -- it's $10k for over 21) at InteractiveBrokers.com and they will give you a free paper trading account (which is fake money traded using realtime data) of $10,000,000. They have API's in C#, C++, VB, Java and reasonable support... You could write your own stock pair trading algorithm. They have good documentation on how to get started.
You can scale this as high as you want, also a lot of people do high frequency trading which requires hpc and in-depth knowledge of Unix and C++.
Worth looking into, my 2 cents.
Perhaps massively parallel processing? Libraries like Cuda, OpenCL, and DirectCompute are just blossoming, and have a high likelihood of becoming commonplace. In my company, we are researching uses for OpenCL, and we're finding that it has the potential to revolutionize our industry.
Just a thought.
I would suggest looking at Sandia National Labs's SST (The Structural Simulation Toolkit). Its a highly parallel simulator framework used for HPC. It uses and incorporates other simulators from academia and industry. For instance, it currently integrates GEM5, QSim, MacSim, DRAMSim, Merlin, Portals, DRAMSim2, Iris, etc. Moreover, it is open source so you can contribute to the development.
You could work on integrating other academia components into SST, improve the interface of one of the components with SST, or just improve of the components themselves.