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Monthly Archives: October 2011

Week 12 Reflective Post

In this week, we plan to have a guest lecture. However, due to the sudden availability of the planned guest lecturer, we did not have lecture this week. Hence, for this weekly online journal, I will write a reflective post about the both two assignments. In addition, I will reflect what I have learned and gained from this unit through this semester.

Reflection on Assignment

We have two assignments for this unit. The first one is about reflective dialogue journal. For completing this task, I have maintained writing a blog post each week. The blog posts are critical reflection upon the content of lectures, guest presentations, tutorial, readings and assignment progress. For example, I have summarised the major key points mentioned during the classroom session. In particular, I have chosen some critical topic I am really interested in, and taken much more investigation and research on that area. In addition, I have also reported the progress that I work on my assignment 2. In order to make my post informative and impressive, I use WordPress as my blog platform. Many pictures, videos and clickable links are inserted to my posts. I will provide my blog site address again at the end of this post.

For assignment 2, the first component is about service description, and the second component is to write a client advising letter for proposing an electronic medical record system. In the first part of this assignment, I have conducted as web-based research in order to identify services. There are seven services that have been determined. They are Carsales, Linkedin, SurveyMonkey, PayPal, Google Groups, WordPress (Blog), and Twitter. All of these services come from different domains and offer various functionality. Each service is described with reference to overall functionality, stakeholders, constraints on access, technical access, pricing factors, legal factors and delivery model. These services are further analysed regarding service integration. In the advising letter, I present a good example, which I have recently read for the Internet, to support my advice. It describes a middle aged man has had some health issues. He complains that his medical records are scattered all over different doctors’ offices. This makes it harder for him to get well. Whenever he goes to a new doctor, he has to explain his health history all over again. This is a waste of time for both him and his doctor. Based on this patient’s expression, it apparently shows that a need for the Personally Controlled Electronic Health Record system is very urgent.

Reflection on the Unit

Through this unit, I have learned so many information about impact of Information Technology, and how IT is changing the world. I think the lectures are well prepared and designed. They cover various areas such as government, education, health, e-commerce, business process management, enterprise architecture and gaming in order to deliver the impact of IT. In particular, guest lecturers provide us much more information and knowledge in the real world. Tutorials and weekly readings are also very helpful. I discuss some hot issues arose from lectures and assignment questions with the tutor in tutorial session. By reading weekly reading, I gain further understanding of a specific topic, for example, Green IT. In conclusion, this unit provides me a solid grounding knowledge about impact of IT.

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Posted by on October 22, 2011 in Weekly Post

 

Graphic Processing Unit (Week 11)

This week’s lecture has been divided into two parts. In the first part, Prof. Alistair further explained Business Process Modelling with some specific examples. During the second half, a guest lecture provided information regarding gaming and graphic technology. In this weekly journal, firstly I will review some knowledge of Business Process Modelling, because we continuously discussed BPM in our tutorial. Secondly, I will focus on the gaming and graphic technology based on my understanding.

Business Process Modelling

Business Process Modelling refers to the methods, notations, grammars, tools and purposed of process modelling. Business Process Modelling Notation (BPMN) is presented as a business process modelling language. Its main objective is to increase awareness of the close link between business requirements and IT capabilities, and the related fundamental role of business processes. For example, within an organization, the manager could know that they have some operational technology and various business services with corresponding business processes. However, he may not totally understand capabilities of these services and technology. BPM aims to settle these kinds of problems.

Graphic Processing Unit

According to this week’s lecture, I know lots of knowledge about Graphic Processing Unit (GPU). After the lecture, I have searched online about GPU and tried to gather relevant information together. GPU is a concept relative to the CPU (central processing unit). In the modern computers, especially desktop’s system, graphics processing becomes more and more important. It needs a dedicated graphics core processor. GPU can accelerate the building of images and output high quality graphic display. For example, 10 years ago, we played first person shooting games with very rough images by using a computer. In contrast, 10 years later, some kinds of computer games, such as “Call of duty”, it represents excellent graphics display, because modern computers are equipped with GPU technology. GPU acts as a heart of graphical display card. It determines the class and most of performance of the graphics card.

For GPU’s computational functions, modern GPU uses most of their transistor to do calculations for 3D computer graphics. Recent development in GPU include support for programmable shaders which can manipulate vertices and textures with many of the same operations supported by CPUs, oversampling and interpolation techniques to reduce aliasing, and very high-precision color spaces. Because most of these computations involve matrix and vector operations, engineers. Scientists have increasingly studied the use of GPUs for non-graphical.

Assignment progress

Last I have defined carsales.com.au, however I faced some problems with this service, for example, the pricing of using private car selling service. At last, I have figured out this question. During this week, I am continuously working on my assignment for identifying several services. For instance, I find SurveyMonkey is a kind of web-based service, and it can be identified as software component service, because it has survey templates for its users to generate online survey. It is also can be found that people use SurveyMonkey for everything from customer satisfaction and employee performance review, to course evaluations and research of all types. In addition, the pricing factor for SurveyMonkey is quite clear. It has four different plans including BASIC, SELECT, GOLD and PLATINUM with price of free, 19 AUD/month, 25 AUD/month and 65 AUD/month respectively. Further investigation of this service will be focus on functionality and some legal factors.

 
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Posted by on October 15, 2011 in Weekly Post

 

Enterprise Architecture (Week 10)

In this week’s lecture, Ayed has talked about Enterprise Architecture. He started the lecture with questions, such as “what is Architecture” and “what is Enterprise”. Generally, architecture is known as a process of product planning, designing and constructing. According to IEEE standard, “architecture is the fundamental organization of a system embodied in its components, their relationships to each other, and to the environment, and the principle guiding its design and evolution”. In addition, from the lecture, we know that an enterprise is any collection of organizations that has a common set of goals and/or a single bottom line. Base on understanding of enterprise and architecture, I think an enterprise architecture is a comprehensive description of the structure of an enterprise, which consists of different layers including business layer, application layer and technology layer. In each layer, there are different components. For example, business layer comprises business actor, business role, business function, business service and business process. Furthermore, enterprise architecture works as strategy. It is designed to ensure alignment between the business and information technology. Apparently, it provides enterprises with effective strategies, operating models, and guiding principles. The other purpose of enterprise architecture is to help enterprise with the software development projects and service delivery.

During the lecture, some enterprise architecture frameworks have been discussed. These enterprise architecture frameworks include The Zachman Framework, ArchiMate and TOGAF. All of these three enterprise architecture frameworks have been briefly introduced to us by Ayed. First of all, The Framework is named after its creator John Zachman, who first developed the concept in the 1980s at IBM. It has been updated several times since. The Zachman Framework provides a formal and highly structure way of viewing and defining an enterprise. Secondly, ArchiMate is partly based on the IEEE standard. It was developed in the Netherlands. ArchiMate is an open and independent Enterprise Architecture modelling language that supports the description, analysis and visualization of architecture within and across business domains (Archi User Guide, 2011). The following picture shows a part of enterprise architecture modelling by using ArchiMate. It shows relationships among business actors, roles, services and processes.The third enterprise architecture framework is TOGAF. TOGAF is the acronym of The Open Group Architecture Framework, which was developed by members of The Open Group. It consists of a detailed method and a set of supporting tools for developing an enterprise architecture. All of these EA frameworks or EA modelling software aim to help us understand and model enterprise architecture.

In the tutorial session, we have discussed web service, mashup, and revision of cloud computing. We also discussed about our assignment. For my assignment progress, I have identified a few services for Part A. For instance, I choose carsales.com.au, specifically in private car selling. Based on my research, first of all, I know that carsales.com.au aims to provide the useful and helpful automotive advertising in Australia. It is operated by a team of over 200 staff nationwide. Furthermore, I define this service as an informational service, because it provides numerous cars’ information. However, I have not figured out the pricing of this service. I think I need to try to search more details. For the assignment Part B, I have reviewed several paper about PCEHR. And the client letter of advice is almost done. In the future two weeks, I think I need to revise the content according to criteria sheet.

Reference:

Archi UserGuide. (2011). ArchiMate Modelling.

 
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Posted by on October 7, 2011 in Weekly Post

 
 
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