Archive for the ‘Information System’ Category

2012 Conf-IRM   1 comment

The deadline is closer! Must hurry up…wish me luck guys so I can make it this time, this year, after a totally dark hour in 2010.

Conf-IRM 2012
Theme: Information Systems and Accountability in a Digital World

Patronage:
Dr. Michael Häupl – Mayor of Vienna
Brigitte Jank – President of the Vienna Chamber of Commerce and Industry

Vienna University of Economics and Business, Vienna, Austria
May 21-23, 2012

Now open for submissions: Click here to access the Easychair System for submitting your research work, teaching cases, and proposals for panels and tutorials.

This conference aims to bring together information resource management and accounting researchers, educators, and professionals from all over the world to discuss the frontiers of Information Resources Management and Accounting Information Systems, especially to exchange topics, viewpoints and findings that may be radical or even controversial. In the current economic climate, IT managers and academics continue to contemplate over the critical challenges of how to reduce, monitor and control operational IT risks within enterprises to achieve greater organisational transparency and provide environmental sustainability. Responsible IT governance and management is at the core of on-going debates arguing for wider accountability to all involved stakeholders including private and public organisations, and users and citizens. While the efficiency and the effectiveness of operations continue to be at the forefront of IT performance assessments, new dimensions including social and environmental responsibilities are demanding more attention in total responsibility approaches. Regulation is (re-)gaining grounds not only in specific industries (such as financial services) but also across sectors, e.g. with low carbon regulations driving transparency through carbon footprints. Organisations need to re-act by re-evaluating their IT decision making and assessment approaches, change management systems, information technologies and methods in an effort to improve control over their information and technologies guided by new and well aligned organisational objectives. In this context, Conf-IRM 2012 aims at providing a current account on the array of different ideas and initiatives in globalised and digital world promoting Accountability within the discipline of Information Systems.

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Posted October 25, 2011 by hamzahritchi in Information System

IT Governance Open Course – Outline   3 comments

The Wish of Arrianto Mukti Wibowo (Email: amwibowo@cs.ui.ac.id; amwibowo@yahoo.com)

Personal Appeal / Request

” I BEG YOU, PLEASE, in the name of knowledge and science, in the name of the All-Knowing GOD, please REFER, LINK from other pages/websites, COPY, GRAB, BACKUP, SUCK, MIRROR to MANY SERVERS or CD/DVD as much as possible. May The Most Mercifull GOD bless you all (ga peduli kalau Anda atheis atau nyembah batu atau nyembah tuyul, that’s your business). Tapi please bantu backup di server lain. Mohon bantuannya mensosialisasikan. The reason I am asking you this is that in my experience, in a couple of years, for some reasons, sometimes websites are shut down for some reason (like geocities now backed-up in reocities)…” (Arrianto Mukti Wibowo)

I am pleased to have a chance to know Muki (his nikcname) for we are able to get his teaching and consulting materials in relation to IT Governance study. Muki is academics member of University of Indonesia’s School of Computer Science. He places much interest in Strategic IT Planning, and he mainly works in IT Governance Lab. He even begs to copy, grab the whole site contents for further redistribution.

I grant your wish, Muki. He has already acknowledged the power of sharing and peering of web 2.0 as MIT open course did. So do I  (my justification to download and upload those materials:) ). Building the “sharing spirit” on the top of this course materials, please do not hesitate to share it further to your peers. The more share you do, the better, remember Metcalf Law of network effect.

FYI, the original materials is sourced from Wikimuki page which is administered by Muki. Some modifications in terms of the look and data organization is done by me for some consideration. First, this topic will be organized into several posting as I do not want you to get jammed for comprehending all the materials. Taking a baby step is much wiser rather than solely grab the whole stuff but leave them eventually unread. Second, as I am a bit (or perhaps a very) perfectionist, I want my posting babies looked cool and enjoyable to read. That’s why I need time to do this and that kindda stuff, especially for the flow of contents.  Last, I just have to manage my focus with my own study which also takes time. I’m sure you understand that, and thank you for that. One more thing, as the original website is constantly updating, you might need to keep udpated by watching my blog regularly too (not everyday obviously) or simply visit his website.

This first posting is simply a brief outline of the trip we’re about to take. The following points are the topics will be discussed (I don’t modify the order, only slice the whole materials into clusters):

The Outline

  1. IT Governance
  2. IS/IT Strategic Planning 2a and 2b (Muki’s favorite topic and me too!!)
  3. Managing IT Investment
  4. Research Methodology
  5. Information System (IS) Principles
  6. Risk Management and IS Security
  7. IS Audit
  8. Decision Support Systems
  9. Business Process Design & Reengineering
  10. IT Architecture

As soon as the whole contents populate, I will rearrange with some link between the outline and the specific topic group. Some contents are still empty, waiting for uploaded. Do not worry, I keep my eye all the time to the website. Once it get uploaded, I’ll put it into my website too. Two type of materials are posted, video and reading (in pdf, word, or ppt formats).

Disclaimer: I hereby do not claim that part or the whole materials I post in this topics are under my ownership. But I make some modification to make it easier and enjoyable to reader. I will claim some topics if it belongs to me.

That’s it for now. Sorry, no downloads today :D.

Posted July 18, 2011 by hamzahritchi in Information System

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Do[t] Anything   Leave a comment

Imagine the world wide web with infinite identification where everyone can put whatever they want as their internet domain naming address, virtually everything. Now, it is no more imagination. You really can put any name you want, for instance as http://www.business.ritchi. Or for governmental area, you can simply type http://www.trade.paris. Or for education purpose, you can use http://www.children.kindergaten..

After a series of long discussion and debate between internet communities, business groups, and governments, the decision was made on Monday, 20 June 2011 to enter a new order of top-level-domain management ever. The Internet Corporation for Assigned Names and Numbers (ICANN), the organization that coordinates the Internet’s addressing system, approved to increase number of domains that can be used for any industry, community or interest group for their specific needs from that previously limited to only some domain like dot.com, dot.org, dot.net, dot.info or dot.biz. Ratification made by ICANN now provides users more choices to apply name for their own generic top-level domains (gTLDs).

Obviously, this whole new ways of addressing domain will bring impact on the way people search and use information. For trademark holders this ruling would make their brand, innovation or process are more protected by ensuring more authenticity and authorization power for their properties. From now on, no one will be allowed to apply for a particular name, such as dot.Ritchi, without written approval from me. For a local or a specific country, like Thailand, who wants to utilize more internet activity delivered in their local language, gTLD will enable them to their own language structure, not only English.

gTLDs implementation is also seen as a way to prevent or to reduce cybersquatting activities. Value of cybersquatting would be greatly reduced as no logical need for bad faith squatters to keep such dot.something to further sell it to another party with marginal cost. Reflecting the dot.com burst back in 2000, we have seen how many unreliable (or perhaps unrealistic) dot.com start ups failed to show real business value due to unproven business plan. These young IT folks sold huge number of non substantial unbacked business domains to some sloppy venture capitalists in exchange for stock to make them new billionaires. And the trend continued, at least to some degree until gTLDs endorsement, with the selling of variety of these dot.coms/orgs/nets/etc which bears little meaning to the squatters (but great value to real business)to subsequently sell them to companies or groups with high prices.

With such promising merits offered by gTLD, it would be a worth move to get the new domain. But no pain no gain. In order to obtain your dreamed domain name, you have to dig out your wallet a way out deeper. ICANN requires any interested group to spend $185,000 to subscribe for their desired domain. This big investment does not come with unsubstantiated reason. One of ICANN’s argument is that it needs to cover application processing expenses and providing service for litigation and any related issues might arise. From applicant side, this would entail a detailed business plan, clear IT strategy especially in B2B, and likely a ready legal policy to tackle competition and ownership issues. This indicates how serious and fully-controlled the organization and of this new domain naming system will be.

Nevertheless, with such big opportunity, and big money too, there is still challenge in dispute over who will be the most proper one to be entitled with particular domain. For example, there may be a conflict over the use of dot.ritchi between me and the other guy in some US state. If this occurs, auction to the highest bidder will likely be done to overcome the dispute. Auction means more money, and I ain’t got that huge bucks though. So perhaps I will let this other hamzah ritchi to win. C’est la vie.

Some analysts voice some concern over a predicted decline in traffic, and consequently profits, of search engine industry. Under the new system, users are likely to by pass google or yahoo to get their specific needs. They do not have to think what queries to type in search field as they can straightforwardly go to their destination which they knew already. But as Lenny Kravitz said, it ain’t over ’till it over. I will not take a hurried opinion to judge whether Google with its entire kingdom, will diminish.

According to the site, ICANN will soon begin a global campaign to tell the world about this dramatic change in Internet names and to raise awareness of the opportunities afforded by new gTLDs. Applications for new gTLDs will be accepted from 12 January 2012 to 12 April 2012. For quick introduction, a seven minutes video of the coming gTLDs can be watched below or you can see it in ICANN homepage. A new platform emerges for everyone to grab and monetize opportunity in digital environment, and that the internet is all about, to do[t]anything.

BPMN Self Training   1 comment

Hi Guys,

I’ve been quite a while searching for some popular websites or communities where I can learn process model for my study. Learning of something is a lot faster when you have people in the same interests together sharing our stuff. Coping with widely accepted standardized process models such bpmn, it would be best to get skilled by joining such communities in complement of self learning.

So finally I manage to find some useful websites where I can learn better and instantly without having the software downloaded and run in your local laptop. Yes, they are on web and for free (everyone’s need I guess) with some registration to sign up. But they are woth trying. Some of them are hosted by bpmn community for academical and training purpose, and some are run by commercial providers but giving the software for free. There, have fun play around making models and gain more skill in process models with an easy drag and drop feature right in your web browser.

The list obviously does not cover the whole resources though, in fact it’s only a few. But, as world wide web is a place with unlimited resources, I would be more than happy if you would also share for all of us. To me as beginner, these sites give me enough basics, and more importantly facilitate my need for upgrading my process modeling skill. It is neither on alphabetically order nor of importance consideration. I just write them down as per my own intuitive feeling. Oh yeah, another thing, as I use my computing needs with mac, there might be some resources which can only run in Mac OS, but maybe can also run in Windows.

1. BPMN Community. Run by researchers at Business Process Technology Group of Hasso Plattner Institut, University of Potsdam, the BPMN-Community is an open and free platform for the exchange around the Business Process Modeling Notation. Registration is required. There, you will meet another member, and if I we’re lucky, we can contact and make correspondence with expert about some particular modeling issue. You can also create tutorial and some reference for other member. The latest version of BPMN (2.0), is provided.

2. Oryx Project. I am not sure, but it appears that this site is also managed by HPI. So when you select edit model menu in BPMN-Community environment, you will be directed to here. But by knowing the URI, you can immediately go to the editor. Doesn’t matter which way is better. The important stuff about it is, that you can access and modify huge collection of bpmn models stored there. You can, of course, create your own model. Like BPMN Community, you need to have id. Besides BPMN version which spans 1.0 to 2.0, it also give you many collection of other diagrams.

3. Oryx Project for BPMN 2.0. It is the specialized version for bpmn 2.0. The whole environment is the same.

4. Iyopro. This is actually a compony with freeware. It is great for those who want to feel a more “Window” atmosphere, because the software is design to be deployed as if you operate in Window. The artifacts provided are the latest version of BPMN 2.0. Membership is required.

5. yED Graph Editor. It actually a software with download approach. But in the website, they provide option to launch the software. As I’m not really aware of Java, the launch edition is actually operating with java web start technology. So you are not really working in a website look. Beside that, the graph editor is not exclusively for bpmn. And another disadvantage (relative to the other previous tools above) is that it uses bpmn 1.0, not the latest. But, for novice like me, I feel sufficed with yED. The only thing you have to manage is a little bit patience, as java web start will operate at your machine before it launch the editor.

That is all what I got. Feel free to broadcast further, and of course I would also be happy if you would share with me.

Posted July 11, 2011 by hamzahritchi in Information System

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Some nice BPMN resources – 1   Leave a comment

I somehow just hope the emergence of yet-another conceptual models would slow down and eventually vanish. No kidding, this whole variety of diagramming techniques (or grammars, languages, scripts) sometime gets me into my nerves. Just stick with standardized model and dig knowledge would have been better I suppose.

Anyway, quoting from the resource directly, please read this fine reference (at least for me as newbie). There will be more to feed.

Join this group if you want to discuss with BPMN lovers, haters, users and experts about how to use BPMN for (business) process modeling. Do you have any best practices or experience reports about BPMN? Is something in the BPMN specification unclear? Do you have a BPMN model you want to discuss? Here is the perfect BPMN Community place to post all those questions and ideas!

BPMN Community.

Posted July 11, 2011 by hamzahritchi in Information System

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What..the end of the RDBMS?   Leave a comment

Can’t give opinion on this now, just check it out…sourced from this link

The End of a DBMS Era (Might be Upon Us)

Michael Stonebraker

June 30, 2009

Relational database management systems (DBMSs) have been remarkably successful in capturing the DBMS marketplace. To a first approximation they are “the only game in town,” and the major vendors (IBM, Oracle, and Microsoft) enjoy an overwhelming market share. They are selling “one size fits all”; i.e., a single relational engine appropriate for all DBMS needs. Moreover, the code line from all of the major vendors is quite elderly, in all cases dating from the 1980s. Hence, the major vendors sell software that is a quarter century old, and has been extended and morphed to meet today’s needs. In my opinion, these legacy systems are at the end of their useful life. They deserve to be sent to the “home for tired software.”

Here’s why.

If we examine the nontrivial-sized DBMS markets, it turns out that current relational DBMSs can be beaten by approximately a factor of 50 in most any market I can think of. What follows are a few examples.

In the data warehouse market, a column store beats a row store by approximately a factor of 50 on typical business intelligence queries. The reason is because column stores read only the columns of interest to the query and not all of them. In addition, compression is more effective in a column store. Since the legacy systems are all row stores, they are vulnerable to competition from the newer column stores. The interested reader can start with “C-Store: A Column-oriented DBMS” to explore this topic further.

In the online transaction processing (OLTP) market, a lightweight main memory DBMS beats a row store by a factor of 50. Leveraging main memory and the fact that no DBMS application will send a message to a human user in the middle of a transaction, allows an OLTP DBMS to run transactions to completion with no resource contention or locking overhead. The interested reader can start with “The End of an Architectural Era (It’s Time for a Complete Rewrite)” to explore this topic further.

In the science DBMS market, users have never liked relational DBMSs and want a non-relational model and query facility. This was the topic of my last ACM blog, “DBMSs for Science Applications: A Possible Solution.”

If you are storing Resource Description Framework (RDF) data, which is popular in the bio community and elsewhere, then “Scalable Semantic Web Data Management Using Vertical Partitioning” points out that column stores are very good at certain RDF workloads. In addition, other ideas, such as “RDF-3X: A Risc-style engine for RDF,” will beat conventional DBMSs in other situations. Lastly, native RDF engines (e.g., Virtuoso, Sesame, and Jena) may well gain traction. The point is that something else will beat conventional row stores in this market.

Text applications have never used relational DBMSs. This was pointed out to me most clearly by Eric Brewer nearly 15 years ago in the early days of Inktomi. He wanted to use a relational DBMS to store the results of Web crawling, but found RDBMS to be two orders of magnitude slower than a home-brew system. All the major Web-search engines use home-brew text software to serve us search results. None use relational DBMSs.

Even in XML, where the current major vendors have spent a great deal of energy extending their engines, it is claimed that specialized engines, such as Mark Logic or Tamino, run circles around the major vendors, according to a private communication by Dave Kellogg.

In summary, one can leverage at least the following ideas to get superior performance:

A non-relational data model. If the user’s data is naturally something other than tables and if simulating his natural data model on top of tables is awkward, then chances are that a native implementation of the natural data model will significantly outperform a conventional RDBMS. This is certainly true in scientific data.

A different implementation of tables. If something other than a row store accelerates the user’s queries, then a direct implementation of the relational model using non-row store technology will run circles around a conventional RDBMS. This is true in the data warehouse marketplace.

A different implementation of transactions. Current row stores give you a “one size fits all” implementation of transactions. This can be radically beaten if a user has lesser requirements or if the system can take advantage of workload specific features. This is true in the OLTP marketplace.

One of these characteristics is true in every market I can think of. Hence, in my opinion, the days of a “one size fits all” monolithic DBMS are at an end. The replacement will be a collection of vertical market specific engines, with much higher performance.

You might ask, “What if I don’t care about performance?” The answer: Run one of the open source relational DBMSs. They are mature, reliable, and, best of all, they are free.

You might also ask, “I am dug in deep with my current vendor(s). What do I do?” The answer: Take some portion of your DBMS budget and allocate it to new solutions. Over time, you will move onto better technology.

References

Michael Stonebraker et al., “C-Store: A Column-oriented DBMS,” Proc 2005 VLDB Conference, Trondheim, Norway, Sept. 2005.

Michael Stonebraker et al., “The End of an Architectural Era (It’s Time for a Complete Rewrite)” Proc 2007 VLDB Conference, Vienna, Austria, Sept. 2007.

Dan Abadi et al., “Scalable Semantic Web Data Management Using Vertical Partitioning,” Proc. 2007 VLDB Conference, Vienna, Austria, Sept. 2007.

Thomas Neumann et al., “RDF-3X: A Risc-style engine for RDF,” Proc VLDB Endowment, 1(1): 647-659 (2008)

Posted July 22, 2009 by hamzahritchi in Information System

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COBIT and COSO   Leave a comment

Here is an extract of one of my academic papers. Originally written in Indonesia. This paper was originally explored with my colleagues Deni, Ina, and Darwin and subsequently refined by me. I guess it’s a good idea to be able to discuss control in accounting information system context. Let me know if you would like to invite me into a constructive discussion since I find the paper still needs refinement in many dimension.

Posted July 13, 2009 by hamzahritchi in Information System

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