Knowledge Base System

A web-based Knowledge Base System is an online Knowledge resource on the net. Knowledge Base System creates a huge archive of information on a website that help people gain knowledge. Knowledge Base System also is a communication tool that helps people sh

Knowledge Base System Basic Knowledge TABLE OF CONTENTS CHAPTER 1 – OVERVIEWS 4 CHAPTER 1 – OVERVIEWS 41.1 SCENARIO 41.1 SCENARIO 41.2 BACKGROUND .51.2 BACKGROUND .51.3 INFRASTRUCTURE 71.3 INFRASTRUCTURE 71.4 ORGANISATION CHART 71.4 ORGANISATION CHART 71.5 SCOPE 101.5 SCOPE 101.5.1 Scope of application 101.5.2 Target user .101.5.3 Software Requirement .121.5.4 Hardware Requirement .12 CHAPTER 2 – DEVELOPING TOOLS .13 CHAPTER 2 – DEVELOPING TOOLS .132.1 DATABASE MANAGEMENT SYSTEM (DBMS) 132.1 DATABASE MANAGEMENT SYSTEM (DBMS) 132.1.1 Kinds of DBMS .132.1.2 Choose DBMS and explain reasons 152.2 PROGRAMMING LANGUAGE (PL) .172.2 PROGRAMMING LANGUAGE (PL) .172.2.1 Kinds of Programming Languages 172.2.2 Choose PL and explain reasons .20 CHAPTER 3 – DETERMINING REQUIREMENTS OF CURRENT SYSTEM 22HUT – Genetic Computer School Page 1 Knowledge Base System Basic Knowledge CHAPTER 3 – DETERMINING REQUIREMENTS OF CURRENT SYSTEM 223.1 ANALYZE SAMPLE FORMS .223.1 ANALYZE SAMPLE FORMS .223.1.1 Personnel Profile Form 223.1.2 Student Profile Form .243.1.3 User Information Form 253.1.4 Category Information Form 283.1.5 ArticleType Information Form 303.1.6 Article Information Form 323.2 FUNCTIONAL DIAGRAM .363.2 FUNCTIONAL DIAGRAM .363.3 DATA FLOW DIAGRAMS .373.3 DATA FLOW DIAGRAMS .373.3.1 Level 0 DFD for Knowledge Base System 373.3.2 DFD level 1 for User Management function .383.3.3 DFD level 1 for Content Management function 403.3.4 DFD level 1 for Category Management function 413.3.5 DFD level 1 for Search function .423.3.6 DFD level 1 for Statistics function 433.4 DATA DICTIONARY 443.4 DATA DICTIONARY 443.5 NEW SYSTEM IDENTIFICATION 493.5 NEW SYSTEM IDENTIFICATION 49 CHAPTER 4 – SYSTEM DESIGN 50 CHAPTER 4 – SYSTEM DESIGN 504.1 DATABASE DESIGN 504.1 DATABASE DESIGN 504.1.1 Database Normalization 504.1.2 Normalize User Information Form 534.1.3 Normalize Category Information Form .57HUT – Genetic Computer School Page 2 Knowledge Base System Basic Knowledge 4.1.4 Normalize ArticleType Information Form 594.1.5 Normalize Article Information Form 614.1.6 Entity - Relationship Diagram 664.2 PROGRAM DESIGN 674.2 PROGRAM DESIGN 674.2.1 System menu design 674.2.2 Flow chart 70 CHAPTER 5 – OPERATING INSTRUCTIONS 88 CHAPTER 5 – OPERATING INSTRUCTIONS 885.1 OPERATING INSTRUCTIONS .885.1 OPERATING INSTRUCTIONS .885.1.1 Installation of SQL Server 2000 885.1.2 Installation for IIS .965.1.3 How to run total program 965.2 HARDWARE REQUIREMENT 975.2 HARDWARE REQUIREMENT 975.3 SOFTWARE REQUIREMENT 985.3 SOFTWARE REQUIREMENT 98HUT – Genetic Computer School Page 3 Knowledge Base System Basic Knowledge CHAPTER 1 – OVERVIEWS1.1 SCENARIO Information technology is becoming increasingly clear that the growth of computing and communications technology is exceeding our understanding of its economic and social impacts. Information technology is being used by organizations in a wide variety of settings and ways and that information technology is critical for the smooth operation of many organizations. Further, its usage is positively correlated with organizational productivity and efficiency. Change driven by information technology is having a significant impact on every aspect of life and is an increasingly critical issue for education. Information technology is able to improve the delivery of education and enhance student achievement. They are not only make teaching, learning, study more convenient and easy but also ensure desired efficiency and scientific methods. Because of the following rationales that government attempts encouraging the use of information technology in education. The education system can prepare for students to participate fully in an advanced information society in which they live (a social rationale). Environments equipped with computers and network accessing are extremely useful for providing a foundation for learning, promoting independent learning, and creating better environment. In order to help universities that disclose information using the Internet (websites) is an extremely useful tool for sharing information on what goes on in universities and classrooms and for establishing a new level of exchange with caregivers and the community. It also provides the potential to deepen and expand the understanding on students across the entire student curriculum (a learning effectiveness rationale). And it helps them to overcome problems of distance and isolation (an efficiency rationale). Each of these there rationales supports each other.The Internet has penetrated rapidly and extensively into U.S. public universities. A U.S. Department of Education survey found that as of fall 1996, 65 percent of universities had access to the Internet; penetration had increased by 15 percentage points in each of the prior 2 years. The Office of Technology Assessment (OTA) estimated that in 2000, U.S. universities had 7.4 million computers for use in instruction. But in Viet Nam, instead of being fully HUT – Genetic Computer School Page 4 Knowledge Base System Basic Knowledge aware of that, we failed to apply it successfully. So what are the reasons? Inadequate facilities, lack of qualified manpower, limitation on development of technology and the deficiency of infrastructure when referring to this problem. In fact, the impact on the bulk of teaching and learning has been minimal. Developments in paper/printing technologies have had far more influence, with the consequence that face-to-face discussion and paper resources still dominate public education. As the matter of fact, there is a communication gap between lectures and students only in classrooms because of the passive way of learning. In an attempt to handle the knowledge, students have no choice except for the traditional means such as coming to libraries to read printed materials.Needless to say, the application of information technology is an access road to mine of knowledge. Therefore, applying the information technology in the field of education becomes more and more important and pressing. And it gives us the reason to hope that the quality of education and training in Viet Nam will be so much improved.1.2 BACKGROUNDWhat is a Web-based Knowledge Base System?A web-based Knowledge Base System is an online Knowledge resource on the net. Knowledge Base System creates a huge archive of information on a website that help people gain knowledge. Knowledge Base System also is a communication tool that helps people share knowledge quickly and easily.Objectives of Web-based Knowledge Base SystemWeb-based Knowledge Base System changes significantly the roles of traditional lecturer and student. Students assume increasing responsibility for their learning while lecturers become resources, facilitators and evaluators, guiding students in their problem-solving efforts. For you as a learner, the ability to concentrate and to use your time well is the key to succeed. Since the dawn of the Internet age, the online Knowledge Base System was supposed to let great lecturers reach any student, any subject, any time, and anywhere. Online teaching/learning are not fixed in time or space. Many students find the flexibility of online learning a practical alternative to sitting in a campus classroom for hours on end. Students can interact with the lecturer and their classmates at any time from anywhere to seek clarification HUT – Genetic Computer School Page 5 Knowledge Base System Basic Knowledge for issues they encounter in their homework assignment, to discuss topics in the course contents, or to initiate new discussions on related topics. A successful online discussion has the same synergistic effect as group or in-class discussion, in which students build on one another's perspectives to gain a deeper understanding of the materials form different perspectives. Online Knowledge Base System engages and empowers students, increase their enjoyment and encourage them to share and participate in their learning process. In an effective collaborative learning environment a group of students comes together to share and learn from one another. You are held together by a common interest in a body of knowledge and are driven by desire and need to share problems, experiences, insights, templates, tools, and best practices. Active participation in collaborative learning deepens your knowledge by interacting on a daily basis. It is a channel for knowledge to flow and is a means to strengthen the social fabric in online learning environment. Facilitating creative dialogues between lecturers and students is the Internet's greatest contribution to enhancing education, much more important than just putting lecture notes online. Most face-to-face courses involve a low-level of collaboration among students and lecturers. A Web-based environment is where the students can think and experience a sequential flow of learning allowing "teach-yourself" by way of thinking for yourself. Subsequently, it must allow the students interacting freely with the lecturer whenever they need to. Unlike face-to-face setting, where the responsibilities are ranked with emphasis on teaching then learning, for the online learning the emphasis is on learning then teaching. From the experience in both settings, we have realized that for online Knowledge Base System students and lecturers are partners in the learning process. Partnership makes the success faster, less expensive, and easier to achieve. There is great opportunity in putting this concept into the hands of lecturers and supporting their change in thinking with exposure to excellent mentoring. Therefore web-based system is for both students and lecturers as a team without any separation. Students today no longer spend all their time in a noisy lecture room or the deadly silence in the huge reading room of a university library. These components of learning environment still HUT – Genetic Computer School Page 6 Knowledge Base System Basic Knowledge exist but their functionality has changed. Web-based system delivery is the beginning of a new wave of technology development in higher education. Freeing student work from paper and making it organized and transportable opens enormous possibilities for re-thinking whole curricula: the evaluation of faculty, assessment of programs. Besides the required textbook a collection of online resources replacing the traditional printed materials in the libraries must be provided.The impact of class size is of concern to all parties involved on Web-based learning/teaching. It takes 2 or 3 times as much time to teach an on-line course as a face-to-face course for both students and the Lecturers. A subject that works for 15 or 20 students now may be possible with 100 students.Online Knowledge Base System allows knowledge to spread near-instantly, and makes it accessible to everyone, i.e., breaking down the walls of education. Given the ease and speed at which information travels. Strategy using online Knowledge Base System could prove successful not only economically, but could exploit also human resources that would foster innovation and strengthen the democratic foundation of a knowledge-based society. 1.3 INFRASTRUCTUREThe faculty has an Information Center with more than 300 networked PCs that connect directly to the Internet. A broadband will be implemented in a near future. The faculty also has a server running MS Windows 2000 Server, IIS Web server and MS SQL Server 2000.1.4 ORGANISATION CHARTThe faculty of Informatics and Economic - National Economic UniversityNational Economic University (NEU) is known to be the top Universities in Vietnam. NEU has approximately 700 personnel including 2 People’s teachers, 29 meritorious teachers, 13 Processors, 32 Prof. Doctors, 149 Doctors, 120 Masters, 145 official lecturers, 260 lecturers. NEU is not only famous of its qualified staffs but also the quality of training. NEU is rewarded many medals and certificate of merit from the government. NEU’s training scale is about 27,000 students.HUT – Genetic Computer School Page 7 Knowledge Base System Basic Knowledge Figure 1.4.1 - Organization chart of National Economic UniversityThe Faculty of Informatics and Economic equips the students with knowledge of business management and administration. On top of it, students have chance to know more about computing and software technology which help them be able to apply the latest achievements in information technology. The Faculty of Informatics and Economic includes two subjects and one information technology center:Figure 1.4.2 –The organization chart of The Faculty of Informatics and EconomicThe faculty trains 16 subjects:• Informatics Foundation• Applied Informatics• Computer Architecture• Operating Systems • Programming Technique 1 • Programming Technique 2• Object Oriented Programming HUT – Genetic Computer School Page 8 Knowledge Base System Basic Knowledge • Data Structure and Algorithm• Database 1• Database 2• MIS • Computer Aided- Accounting• Software Engineering• Computer Networking• Internet and E-Commercial• Applied Information in Human Resource ManagementBesides learning in the classroom, the students of faculty always have to depend on traditional approach such as reference from libraries, direct exchange of ideas among students, along with lectures’ help to search for books and support materials. And this approach is not be efficient and still has a lot of limitation in space and time. Meanwhile, an infrastructure with 300 personal computers connected to Internet – a support tool to apply in information technology is not used efficiently in knowledge supporting and sharing. By using MS Internet Information Service (MS IIS) combined with MS SQL Server 2000 on the platform of Windows 2000 Server, National Economics University created a website with the address of www.neu.edu.vn. However, the information available in system is general problems such as organization of NEU, history and activities instead of supporting lecturers and students. That is why, at right time, the Online Knowledge Base System becomes more pressing and necessary. And it is not overstated to say that this system is a necessary addition to the improvement of teaching quality. System can categorize and manage huge information resources. Its function is as knowledge link between student and lecture. It is also a mine of knowledge to both lectures and students. Lectures can exchange experience as well as provide the information, knowledge and material for students. Through efficient ways of research, students can avail themselves of opportunity to be in contact with the ocean of knowledge classified. As a matter of course, HUT – Genetic Computer School Page 9 Knowledge Base System Basic Knowledge students are also received swiftly and efficient support from lectures and easily share knowledge and experience together.1.5 SCOPE1.5.1 Scope of applicationKnowledge Base System can be applied for many fields like education: in universities, institutes; to create supporting system for communities in exchanging knowledge and information, so on. In other words, the system helps narrowing spatial gap, searching information conveniently and becoming an efficient supporting tool for studying and teaching. In addition, the system can be used for customer support services.1.5.2 Target userTypical objects of the system are described in the following figure:Figure 1.5.2 – Mechanism of Knowledge Base SystemHUT – Genetic Computer School Page 10 [...]... used to access the system nvarchar All Quyda81 All validatePassword 14 RegDate Date that user registered to join the system datetime dd/mm/yyyy 01/11/1981 The system generates automatically 15 Role Role in the system (1: administrator, 2: moderator, 3: user tinyint 1 255 1 The system generates automatically HUT – Genetic Computer School Page27 Knowledge Base System Basic Knowledge use it without... Page 13 Knowledge Base System Basic Knowledge 19 CommentID The unique number defines a comment int 1…2^31 1 The system generates automatically 20 CommentText Comments about an article ntext All I think you made some mistakes All 21 CommentUserID Name of user who commented the article int 1…2^31 25 1…2^31 validateUsername HUT – Genetic Computer School Page35 Knowledge Base System Basic Knowledge. .. (*) is generated by the system automatically) Figure 3.1.5 – ArticleType Information Form HUT – Genetic Computer School Page30 Knowledge Base System Basic Knowledge 3.5 NEW SYSTEM IDENTIFICATION Although there are three types of objects joining the system (students, lecturers and administrators), information of these objects are added in a unique object called user. In the system, user is distinguished... Page34 Knowledge Base System Basic Knowledge The students can Register and manage their own user profile. The Lectures have got the administrator handle them their username and password for the first time. The Administrators have the privilege to manage user profile including registering or escalating a username as a lecturer. HUT – Genetic Computer School Page39 Knowledge Base System Basic Knowledge. .. DATABASE MANAGEMENT SYSTEM (DBMS) 13 2.1 DATABASE MANAGEMENT SYSTEM (DBMS) 13 2.1.1 Kinds of DBMS 13 2.1.2 Choose DBMS and explain reasons 15 2.2 PROGRAMMING LANGUAGE (PL) 17 2.2 PROGRAMMING LANGUAGE (PL) 17 2.2.1 Kinds of Programming Languages 17 2.2.2 Choose PL and explain reasons 20 CHAPTER 3 – DETERMINING REQUIREMENTS OF CURRENT SYSTEM 22 HUT – Genetic Computer School Page 1 Knowledge Base System. .. 0 0, 1 27 ArticleID The unique number defines an article AutoNumber 1 2^31 1 The system generates automatically 28 ArticleName Name of an article nvarchar All Instructions about Pascal All HUT – Genetic Computer School Page46 Knowledge Base System Basic Knowledge The Student can browse through the Knowledge Base System for information, post an article (or question) and edit their own articles... DATABASE MANAGEMENT SYSTEM (DBMS) 2.1.1 Kinds of DBMS There are many different types of DBMS, ranging from small systems that run on personal computers to huge systems that run on mainframes. Now we will introduce some types of DBMS before choose one: Oracle, SQL, Access, MySql etc. Oracle Oracle is a relational database system from Oracle corporation extensively used in product and internet-based... powerful relational database management system that offers a large feature set. Along with Microsoft SQL Server, Oracle is widely regarded as one of the two most popular full-featured database systems today. Oracle is only used for databases with huge size, from millions to tens of millions records. This DBMS runs based on Client/Server model, can adopt different operating systems and security level.... operating process of the system but also provides general numbers about current system for user. Utilizing benefits of network environment, new system with clearly categorized information structure and useful functions will create a rapid and convenient environment for user in exploring and sharing information. HUT – Genetic Computer School Page49 Knowledge Base System Basic Knowledge 3.3.3 DFD level... room or the deadly silence in the huge reading room of a university library. These components of learning environment still HUT – Genetic Computer School Page 6 Knowledge Base System Basic Knowledge 3.2 FUNCTIONAL DIAGRAM Knowledge Base System Member Management Category Management Content Management Search Member registration Update Member Info Post an article Update article information Add a category Update . Web-based Knowledge Base System? A web-based Knowledge Base System is an online Knowledge resource on the net. Knowledge Base System. gain knowledge. Knowledge Base System also is a communication tool that helps people share knowledge quickly and easily.Objectives of Web-based Knowledge Base