Information Systems. Tools for Information Systems

Transcription

1 Information Systems Tools for Information Systems

2 1. Databases Last Week 2. Artificial Intelligence 3. Expert systems

3 Expert systems This Week Internet Data mining Assignment 3

4 Expert systems Attempt to replicate human experience. Allow inexperienced people to provide expert knowledge. Asks a series of questions. Need to know the rules in order to develop the system. How could your business use an expert system?

5 Expert systems TASK Rules of assignments If the criteria aren t met it is a fail. If the pass criteria are met it is a pass. If the pass and merit criteria are met it is a merit. If the pass, merit and distinction criteria are met it is a distinction. If the pass criteria aren t met it can be referred once If it is late the maximum is a pass If it is referred the maximum is a pass Draw an expert system for assignments

6 Websites supported by databases (e-commerce) Internet Tools E-commerce What facilities, or features, are required? For the customer For the business

7 Facilities CUSTOMER Stock info Returns Contact info Cost Reviews/ratings Inclusive pricing Itemised billing Exclude VAT option Tracking ID Payment methods Upfront costs Customer support Live chat Insurance/security Good descriptions Special offers Accounts Cart/basket BUSINESS Store finder Customer feedback Stock control Best sellers Customer information Targeted marketing Protected customer data Statistics Credit control Delivery confirmation Payment confirmation Loyalty system Special offers Trade accounts

8 How easy is it to find a software e-commerce package? E-commerce Select a package and compare it with the list of requirements you generated. Is anything missing Are there extra facilities

9 Data mining Data mining identifies trends within data that go beyond simple analysis. Users have the ability to identify key attributes of business processes and target opportunities. Software can make predictions Data mining is a relatively new term, but the technology is not. Companies for a long time have used powerful computers to sift through volumes of data such as supermarket scanner data to produce market research reports. Continuous innovations in computer processing power, disk storage, and statistical software are dramatically increasing the accuracy and usefulness of analysis.

10 Data mining Data mining software: Number crunching and statistical functionality not normally found in programs like MS Access. Ability to analyse sub levels in data. Report writing functionality. Works with most database software. Task Find five different examples of where data mining tools provide a distinct benefit which would not have been available without data mining techniques.

11 Data mining Investigate Statistical ( and determine if there are any solutions from the following list that are applicable to your business: Banking Hedge Fund Applications Financial Risk Management Capital Equipment Mfg. Chemical / Petrochemical Consumer Product Goods Food Manufacturing Healthcare Insurance Marketing Pharmaceuticals Semiconductors Six Sigma

12 Data Warehousing Historical data can be deposited in a data warehousing application Data must be: Well organised Non volatile (cannot be deleted or edited) Data in the warehouse is then available to data mining software without interfering with day to day operations

13 Feedback Loops What happens in the organisation as a result of information from the MIS? Output should have some effect (direct or indirect) on future inputs. E.g. Data feed of actual sales -> stock control system- >reorder high-selling items to prevent out-of-stocks. E.g. 2. management examine sales report and maximise profits by increasing price on high volume items or offer promotion to boost sales on low-sellers.

14 Closed System Which report do you want to run? Reports are already defined user has little choice on format can choose from limited range of options. Often graphical output Aimed at management Limited flexibility Easy to use

15 Open System Here is the data... User can decide format and content of report Graphical and textual Greater flexibility Difficult to use, requires significant training Aimed at analysts

16 What is Data Mining? Questions What function does a Database have in the information process? What is the difference between a closed system and an open system?