11 articles in this selection
| 2010/02/04 Rittman Mead Consulting - A Quik Look at QlikView
Outside the world of Oracle, one of the rising stars of the BI world has been Qliktech, the Swedish software company behind QlikView. QlikView is one of a new breed of desktop, in-memory BI tools that are being evaluated by customers as alternatives to traditional relational query tools such as Oracle BI Enterprise Edition and OLAP servers such as Essbase or Oracle OLAP. So what is QlikView, and how does it compare to Oracle's BI tools?...
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| 2009/12/29 Is Lean Better Than Agile?
Agile principles and Lean principles have much in common - to the point where sometimes the terms are used interchangeably. A methodology purest however would argue that they are different - so let's accept that for the moment and consider if one approach is better than the other....
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| 2009/12/22 True Performance Improvements in Excel 2010?
While I'm glad that MS is working on improving performance, the charts presented in the blog post seem to be nothing more than a marketing gimmick carefully crafted to make it appear as if Excel 2010 is better than (one of) its predecessor. What seems to be ignored is that overall, performance has degraded since Excel 2003. I think it's dishonest to ignore this fact when claiming speed improvements....
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| 2009/10/02 Top 5 Technology Selection Pitfalls
Buying major software applications can be stressful. The impact of your choice will reverberate across your company, and switching costs can become prohibitive. Yet, it can seem hard to know in advance whether you're picking the right solution. The good news is that many organizations fall victim to a predictable -- and avoidable -- set of pitfalls. Herewith are my top 5 technology selection pitfalls, along with some advice for avoiding them....
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| 2009/08/26 Making Sense of Revision-control Systems
Choosing a revision-control system is a question with a surprisingly small number of absolute answers. The fundamental issues to consider are what kind of data your team works with, and how you want your team members to interact. If you have masses of frequently edited binary data, a distributed revision-control system may simply not suit your needs. If agility, innovation, and remote work are important to you, the distributed systems are far more likely to suit your needs; a centralized system may slow your team down in comparison....
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| 2009/07/22 A Comparison of Approaches to Large-Scale Data Analysis: MapReduce vs. DBMS Benchmarks
There is currently considerable enthusiasm around the MapReduce (MR) paradigm for large-scale data analysis. Although the basic control flow of this framework has existed in parallel SQL database management systems (DBMS) for over 20 years, some have called MR a dramatically new computing model. In this paper, we describe and compare both paradigms. Furthermore,we evaluate both kinds of systems in terms of performance and development complexity. To this end, we define a benchmark consisting of a collection of tasks that we have run on an open source version of MR as well as on two parallel DBMSs....
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| 2009/07/22 Researchers: Databases still beat Google's MapReduce
The paper, titled "A Comparison of Approaches to Large-Scale Data Analysis" is sure to stoke heated discussion among data junkies over the technical merits of MapReduce versus traditional databases. The conclusion? Databases "were significantly faster and required less code to implement each task, but took longer to tune and load the data," the researchers write. Database clusters were between 3.1 and 6.5 times faster on a "variety of analytic tasks."...
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