1. Systems Analysis & Design 7 th Edition Systems Analysis & Design 7 th Edition Toolkit 5

2. 22 Toolkit Objectives  Describe the characteristics of the Internet and the World Wide Web  Formulate an Internet search strategy, evaluate your information requirements, choose a proper tool, assess the quality of the results, and download virus-free results  Explain how to use search engines, subject directories, and the invisible Web to locate the information you require

3. 33 Toolkit Objectives  Demonstrate advanced search techniques, including Boolean logic and Venn diagrams  Describe other Internet communication resource tools, including newsgroups, blogs, podcasts, newsletters, mailing lists, Web-based discussion groups, chat rooms, and instant messaging  Provide examples of IT community resources and their value to a systems analyst  Explain the benefits and disadvantage of online learning opportunities

4. 44 Introduction  The Internet offers a wealth of information about every conceivable subject  Will describe various Internet resources, assist you in formulating an effective information gathering strategy, and explain Internet resource tools and techniques that you can use to access the information you need

5. 55 Overview  Internet  World Wide Web or Web  Web pages  Web site  Web server  Web browser or browser

6. 66 Overview  Summary of Internet Resources and Tools – Many navigation tools are available to you – Search Engines Meta-search engines – Subject Directories Topic directory – The Invisible Web Deep Web or hidden Web – Internet Communication Resources

7. 77 Planning an Internet Research Strategy  To be effective, you should consider a four- step approach: 1.Evaluate your information requirements 2.Match your information requirements to the proper tool 3.Assess the quality of the results 4.Download the results and perform a virus scan

8. 88 Planning an Internet Research Strategy  Evaluate Your Information Requirements – The first step to finding the information you need is to make sure you really understand what you are seeking – Start with a more generalized search instead of going directly to vendor sites

9. 99 Planning an Internet Research Strategy  Match Your Information Requirements to the Proper Tool – Once you feel that you understand the information required, it is time to pick an initial tool – As with most skills, the more you use them, the more expertise you acquire – Will develop your own list of favorite sites and resources

10. 10 Planning an Internet Research Strategy  Assess the Quality of the Results – By definition, the Internet is essentially open and unregulated – Questions to ask when accessing content include: Source Accuracy Scope - Sub-search Currency Look and Feel

11. 11 Planning an Internet Research Strategy  Download the Results and Perform a Virus Scan – Once you have discovered the appropriate information, you can save it to your hard drive or network – Many sites allow you to click a link and download the file directly to your hard drive – It is important to protect your network and computer system from any unwanted viruses or malware

12. 12 Search Engines  Search Engine Basics – Spider or crawler – Indexing – Keywords – Hits – Pay per performance

13. 13 Search Engines  Search Engine Basics – You usually can determine an engine’s approach by clicking the About tab or link on the search site – Sponsored links – Indexed Search Engines – Meta-Search Engines

14. 14 Search Engines  Search Techniques – Consider the following suggestions Refine your topic Translate your question into an effective search query Review the search results and evaluate the quality of the results – To be effective, you should understand the mechanics of the search engine, use proper spelling, find unique phrases, and experiment with a variety of approaches

15. 15 Search Engines  Advanced Search Techniques

16. 16 Search Engines  Advanced Search Techniques – OR – AND – NOT You should use the NOT operator carefully, because the term you want to exclude may be intertwined with the term you seek in many documents that would be useful to you

17. 17 Search Engines  Advanced Search Techniques – Using phrases Phrase Implied Boolean logic Advanced search

18. 18 Search Engines  A Search Checklist 1.Does the topic have any unique words, phrases, or acronyms? 2.Do any of the search terms have other spellings or names? 3.Are certain additional words or phrases likely to appear in any Web document?

19. 19 Search Engines  A Search Checklist 4.Is there any unrelated material that my search terms might pick up? 5.Are any organizations, publications, or institutions likely to have an interest in my topic? 6.Is the search returning results too numerous to examine?

20. 20 Subject Directories  A subject directory collects and organizes Web sites in a top-down format  Portal  Many subject directories are reviewed by human experts, rather than computer robots, to ensure relevance and quality of links

21. 21 Subject Directories  A Subject Directory Example – Subject directories organize information into various categories and provide an overall framework for finding information – In addition to Yahoo!, other popular subject directories include About.com and the Librarians’ Index to the Internet

22. 22 Subject Directories  Advantages and Disadvantages of Subject Directories – The main advantage of a subject directory is that it provides an overview – Many subject directories use human expertise – This process involves subjective decisions – A subject directory forces you to work your way through a series of levels, rather than using specific words and phrases to locate directly the material you seek

23. 23 The Invisible Web  Visible Web  Much more information is available on the Internet that is not indexed  Much of the invisible Web is open to the public, but some databases are password protected  Spidering

24. 24 The Invisible Web  Invisible Web Examples – Specialized topic databases – Hardware and software vendors – Publications – Libraries – Government databases – Auction sites – Locators – Career opportunities

25. 25 The Invisible Web  Navigation Tools for the Invisible Web – Use a search engine to locate a portal – Using specialized portals – You might want to use special navigation software to assist you – Z39.50 protocol

26. 26 Internet Communication Resources  Suppose that you are asked to analyze your organization’s virus protection requirements  As part of your research you would want to learn about relevant news, developments, and the latest virus threats  You can consider using newsgroups, newsletters, mailing lists, Web-based discussion groups, chat rooms, and instant messaging

27. 27 Internet Communication Resources  Newsgroups – Usenet – Threads – Newsreader – FAQs – Netiquette

28. 28 Internet Communication Resources  Newsletters, Blogs, and Podcasts – Some newsletters are published daily, others weekly – Many vendors offer Web-based training options, including podcasts  Webinar – A prerecorded Webinar session also can be delivered as a Webcast

29. 29 Internet Communication Resources  Mailing Lists – Listserv – Users can post messages and view postings made by others – A mailing list uses e-mail to communicate with users – List server – Digest

30. 30 Internet Communication Resources  Web-Based Discussion Groups – Most Web-based discussion groups can be accessed through a portal – In addition to text messages, group Web sites often include membership lists and contact information, photo galleries, and links of interest to members – Web-based discussion groups are popular

31. 31 Internet Communication Resources  Chat Rooms – Channel – IRC – Internet Relay Chat – Various companies also provide chat rooms

32. 32 Internet Communication Resources  Instant Messaging – Although instant messaging began as a popular feature in home-oriented services such as AOL and Yahoo!, it has become an important business communication tool – Raises serious security and privacy concerns because it is relatively uncontrolled

33. 33 Information Technology Community Resources  Information technology (IT) community  This vast collection includes many sites that IT professionals can use to research specific questions or obtain background information  Four important components of the IT community are corporate resources, government resources, professional resources, and online learning resources

34. 34 Information Technology Community Resources  Corporate Resources – An important corporate resource to systems analysts is their own internal company Web site or intranet – An intranet must be easy to access and provide access to valuable information – Intranets can contain company policies and procedures, lessons-learned files, and financial information

35. 35 Information Technology Community Resources  Government Resources – Government sites can provide information on federal, state, and local business policies and regulations – The General Services Agency (GSA) site is a good source for federal policies and regulations, especially for firms that do business with the government

36. 36 Information Technology Community Resources  Professional Resources – Many associations focus on a specific topic – Information Technology Association of America (ITAA) – Many associations offer electronic newsletters

37. 37 Information Technology Community Resources  Online Learning Resources – Advances in bandwidth and processing power have made online learning an increasingly attractive option for many IT professionals – Online learning - e-learning – Gov Online Learning Center

38. 38 Information Technology Community Resources  Online Learning Resources – Benefits of online learning Convenient Economical Customizable – Disadvantages of online learning Interaction Interface Suitability

39. 39 Information Technology Community Resources  Online Learning Resources

40. 40 Toolkit Summary  The Internet is a worldwide network that integrates many thousands of other networks  The primary research tools include search engines, subject directories, and a collection of searchable database resources called the invisible Web  An Internet research strategy should use a four- step approach

41. 41 Toolkit Summary  The IT community includes corporate, government, professional, and online learning resources  Professional development through online learning is a way for IT workers to remain current in their chosen areas  Toolkit 5 complete