Describing Services (WEEK 8)

17 Sep

In this week’s lecture, we have discussed what services are and how services can be described. All of the information closely related to the assignment. In general, service is associated with goods, which is intangible. It is provide to the consumer in some manner. According to ITILv3, service is a means of delivering value to customer by facilitating what they want to achieve without the ownership of specific risks and costs. For example, a physician provides healthcare support or services for his customers. Telephone companies provide communications services, such as national call, international call, and other features that enhance the electronic communication processes. Banks provide a range of financial services to customers, ranging from basic and checking accounts to investment opportunities. Nowadays, with the development of the Internet and mobile communications, various new business models are emerged. Web-based applications including Facebook, Amazon, Ning, Linkedin and Flickr, provide online services to customers. Furthermore, there are also some web services include enterprise software service, IT infrastructure service and insurance services.

It is apparent that people encounter various services in everyday life. However, there is not unified way or standard to represent services. Therefore, the need to describe a service become much more observably. In order to describe services, we need to know aspects of services. During the lecture, several aspects of services have been introduced to us. In general, they include type of service, service functionality, and contribution parts. For describing services, the first thing come into my mind is capabilities of services. It is important to describe what services do. Service capabilities are the actions performed or the information delivered by a certain service. The purpose of a capability description is to allow clients to discover services that perform particular kinds of operations in particular contexts to satisfy their needs. For instance, people are used to find their desired services referred to “yellow pages”.  “Yellow pages” is a kind of capability description of a service. This means the description should allow capabilities to be classified in some way to permit discovery using those classifications. That is to say, a service description support service discovery in order to find the services people need. In addition to this, service description is necessary to provide service understanding about what a service do.

Working on Assignment

The written assignment is released this week, which consists of two components. For the first part, it asks to find minimum five services in various domains, which are available through the web. Based on the Unified Services Description Language as introduced in this week’s lecture, services need to be discussed by some key characteristics of the USDL module. For example, here is an Account Opening Service shown in the following picture. This service is captured in eight aspects, such as general, organizational, technical, operations, legal, security and so on. Besides, we also need to evaluate identified services. The second part of the assignment is a client letter of advice. In this part, brief background information is provided. In this letter, I need to find several fundamental reasons for using the new EMR system and development plan for the PECHR system. As I gain much more information from future lectures, I think I can understand the assignment much better.

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Posted by on September 17, 2011 in Weekly Post


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