Power of Information visualization

Ben Shneiderman is a giant person in information visualization field and he has contributed for many theories in this field. He has coined what he calls information visualization mantra that leads to information seeking behavior:

“Overview first, zoom and filter, then details on demand”

The important point is that a good computer-based visualization is an interface that can support all of these activities. According to this mantra; system should represent the overview of the entire collection, any interested item should be able to zoom, able to filter out uninteresting items, and also able to select an item or group and
get details when needed. Any system which follows this mantra can be representing the high volume of information in an effective manner. Figure 1 shows application (Ex: Spotfire) which built upon using this mantra. In this application entire item collection are displayed and any item can be

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NHibernate

This is new topic for me and I started to work on that few days ago. It is interesting to play and I learn lot during the days. :-) .Learning curve of the NHibernate is bit long and few resources are available. But using trial and error could be able to solve lot of problems. What is ? NHibernate is ORM solution and is intended for transparent binding .NET classes to database tables.Commonly we have mismatch beween the relational database and our objects. The aim of the NHibernate is reducing time efforts to switch application to another database provider .Basically it provides low overhead . “NHibernate increases your performance as a developer”.

Ship It Review -1

This books has been described Habits in interesting manner. Following story took from it and the story shows how we should go for a decision rather considering everybody doing it or becuse of we have already done it. Story: Did you hear the story of the woman who always cooked ham by cutting off and discarding a third of it first? When asked why, she said that was how her mother always cooked hams. When asked, her mother said that was how her mother had always cooked. They finally confronted Grandma, who admitted that when she was young, she didn’t have a pan big enough for an entire ham, so she always just cut the end off, and it became a habit.

tablediff command line utility in SQL Server

Above tablediff utility is very useful for comparing tables.It is not only tells us which records / columns are different but can also generate a SQL script to update the second table to make it the same as the first table. You have to navigate to following path the use this utility SELECT 'C:\Program Files\Microsoft SQL Server\100\COM> Then type command ; tablediff –? Then it shows all the options as follows But only limitation is you could compare one table at a time. Even though you can do some interesting work to overcome this. That is Just go to the SQL sever and type following command execute it. So it will generate the script for all the table. Then you can add it into .bat file. SELECT 'C:\Program Files\Microsoft SQL Server\100\COM>tablediff -sourceserver "SourceDBName" -sourcedatabase "T1" -sourcetable ' + '"' + name +'" ' + '-destinationserver "DestinationDBName" -destinationdataba...

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