By Rosemary Rock-Evans
An easy advent to info and task research
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Additional info for A Simple Introduction to Data and Activity Analysis
A Design Abstraction is simply the means by which the information needed manifests itself in the system design. Look for record layouts forms (input, output or master file) listing layouts screen layouts The abstractions are simply the "templates": the record layouts and forms themselves. If time is limited, for Data Analysis purposes concentrate on master record layouts and forms. 1 An example showing the difference betweeen each type of input Design Occurrences are the forms filled in with real data or a print of the contents of a number of records showing the value of the items in each actual record.
31. 48 A Simple Introduction to Data and Activity Analysis Course Course Courses ARE REQUESTED BY a Client or Company l·. \ Course ARE REQUESTED BY ] Client ^-T- Company Teacher Teacher Teachers ARE ALL consultants Consultant Teacher Teachers CREATE Courses Teacher ? Create ? Course A Company REQUESTS a Course Company Requests ? 29 ? Course How to do Data Analysis 9. Sessions are allocated to Consultants Session 10. +11. Β. If some teachers have not created sessions then by implication some consultants won't have either.
28 Exercise in deriving the Data Model from interview notes Analyst: The area of your job which covers course administration. Could you tell me a bit about what happens? User: Well, we have a number of courses which can be requested by a client or company. Analyst: What form do these courses take? User: Well the teachers we have, who by the way are all consultants, create new courses from scratch if a company requests a sort of course we haven't got. Analyst: In other words, courses are created on demand.