Recently I’ve heard from many people that they’re switching to Twitter for their source of news. Why? Because it does all the work for them. Many of the tweets that I follow normally supply a link to a blog or article worth reading. The only downside is the information overload and the excessive amount of “noise” that you need to get through to find the relevant information. Often, Google news (and web) search doesn’t cut it either. So, how do we effectively get through this noise? Here is where a service called Topsy comes in. It is a social search search engine and I think it helps a ton for finding relevant SAP news. For example:
No more need to constantly check your twitter updates, or your RSS, or your feed burner. Just search here. I’m trying to think of ways how I can use the API to provide an even more meaningful way to bring these topics to the people who care. I think there should be a one-stop shop for finding all news regarding in memory computing from SAP. More on that to come…
I just listened to Marc Bernard’s Webinar about the first looks at the architecture around SAP’s HANA. This is the first document I’ve seen that really makes sense out of HANA from a technical perspective. I’ve also worked with Marc in my time at SAP and really enjoy his ability to clearly present technical information to all sorts of audiences. You can check out the PDF and full recorded version of the webinar at the following: http://bit.ly/dU2bQY
I thought it would be worthy to address some of the key technical take aways from the Webinar:
There are two data stores in the In-Memory Computing Engine (IMCE) – row-based and column-based
Both data stores will be stored in memory (column-based will be very similar to existing BWA technology)
The way data is modeled in HANA is via the “Information Modeler”. It is only used for the column based data store
The Information Modeler is built on the Eclipse IDE. I’m going to assume it’s built using Eclipse EMF.
It supports SQL (JDBC/ODBC), MDX (ODBO), and BICS (SQL DBC)
Data comes in either via BO Data Services or Sybase Replicator
From a technical perspective I really like where the technology is going. The Information Modeler is much more intuitive than any BW interface (i.e. Data Warehousing Workbench) I’ve ever seen. The support for different front-ends opens up the possibility to use virtually anything, and more importantly build your own “Apps”. My one concern is around MDX and multi-dimensional OLAP. MDX is very sluggish and BICS was chosen to replace it in BusinessObjects Enterprise 4.0. I’ve been through the pain of seeing how MDX works when BusinessObjects was first implemented on top of SAP BW. The performance is a huge concern. I’d be very interested to see how BICS is implemented in HANA. I wonder if it creates the same type of Star Transformations that exist in the current BW system. Ya know, those basically unreadable SQL Explain statements?