By Ib M. Skovgaard
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Analysis reports may be produced using the repository information to show where the design is incomplete or contains errors. 4 The repository concept. SALES ANALYSIS REPORT ITEM TOTAL DESCRIPTION SALES ADD CUSTOMER NUMBER XXXXXX NAME STREET CITY STATE ZIP XXXXXXXXXXXXXX XXXXXXXXXXXXXX XXXXXXXXXXXXXX XXXXXXXXXXXXXX XXXXXXXXXXXXXX XXXXXXXXXXXXXX XXXXXXXXXXXX XXXXXXXXXXXX XXXXXXXXXXXX XX XXXXX-XXXX ZZ,ZZ9 ZZ,ZZ9 ZZ,ZZ9 ZZ,ZZ9 ZZ,ZZ9 ZZ,ZZ9 Screen and Report Design System Diagrams and Models Item = Number + Description + Cost + Price + Quantity on hand + Quantity on order + Reorder point + Monthly sales + Year to date sales DO WHILE NOT End of file Read Item record IF Item is low in stock Print Purchase Order Update Item record ENDIF ENDDO System Requirements • Add new customers • Identify fast- and slow-selling items • Enter customer orders • Look up customer credit balance • Maintain adequate inventory Data Dictionary and Process Logic Deliverables • • • • • Add customer screen Item Analysis Report Customer order entry screen Customer inquiry screen Vendor purchase order program • Seasonal forecasting Project Management Chapter 1 • Systems, Roles, and Development Methodologies 11 Visible Analyst (VA) is one example of a CASE tool that enables systems analysts to do graphical planning, analysis, and design in order to build complex client/server applications and databases.
Then complete the specifications. Systems design means modifying the existing system, and that implies modifying the diagrams drawn in the previous phase. These diagrams can be used to derive classes, their attributes, and methods (methods are simply operations). An analyst will need to write class specifications for each class, including the attributes, methods, and their descriptions. The analyst will also develop method specifications that detail the input and output requirements for each method, along with a detailed description of the internal processing of the method.
Identifying objectives is also an important component of the first phase. The analyst must first discover what the business is trying to do. Then the analyst will be able to see whether some aspect of information systems applications can help the business reach its objectives by addressing specific problems or opportunities. The people involved in the first phase are the users, analysts, and systems managers coordinating the project. Activities in this phase consist of interviewing user management, summarizing 6 Part 1 • Systems Analysis Fundamentals the knowledge obtained, estimating the scope of the project, and documenting the results.