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University of Nevada, Reno College of Business Administration What are we going to learn 9/27 – 9/29? 1. Answer questions about MS Access queries. 2. Understand the necessary components of a business application. 3. Understand the role of the application developer for each component. 4. Understand the function served by forms and reports within a business application. 5. Know the basic constructs of creating forms and reports with MS Access. 6. Know how to customize forms with MS Access. 1
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Components of a business application 2 Data Storage: Database Initial Data Population Data Maintenance: Ongoing adding, deleting, and changing data (Forms) Data Access: Convert data to information and make it available (Queries, forms, reports)
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Data Storage: Database Role of an application developer Define what data must be stored. Design the database including tables, attributes, and relationships. Create the database with appropriate constraints to protect data integrity. 3
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Initial Data Population Usually done by importing data from another computer application: Database, spreadsheet, text. Occasionally done through human input (rarely) Role of an application developer: Decide how to input the data. Create the methods. Supervise or actually conduct data population. 4
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Data maintenance Add, delete, and change data. Done through: human input, computer connection, automated input devices, or combination of some/all. Role of an application developer: Choose the appropriate methods. Design, program and test appropriate methods. Train. Rarely does actual data entry. 5
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Data access Converting data to information. Referred to as “accessing” or looking at the data: queries, reports, forms, viewing, visualizing, etc. Role of an application developer: Choose the appropriate methods in conjunction with discussions from the people who need the information for decision making. Design the methods. Program, test, and train users to access the information successfully. 6
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Data access methods in MS Access Queries Used to view sub-sets of data. Used to create information by: Combining data from multiple tables into a single table; Performing, calculations, conditions, and grouped summaries. Forms and Reports Used to look at data from tables and/or queries. Used to enhance the formatting of information by: Adding navigation (buttons, combo boxes, list boxes); Adding visually pleasing elements such as lines, colors, boxes, etc. 7
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Forms vs. Reports CharacteristicFormsReports Interactivity YesNo Update-ability YesNo Quantity of Information Less informationMore information Level of detailed information Very detailed More columns Few rows Patterns Fewer columns Many rows Media ScreenPaper Immediacy Quick LookSlow perusal 8
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Views of a form Available views of a form Form view: How the form will look and feel to the user of the system. Layout view: Beginning application developer view. Puts data into the form, but still allows some modification of the form. More visually oriented than design view for application development. Design view: Advanced application developer view. No data is in the form, allows everything to be manipulated on the form. Much more flexible than layout view. 9
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Form Structure Form Header Page Header Detail Page Footer Form Footer Layout and design tools Drawing area Properties 10
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Controls A control is an object on a form that passes information between the user and the form. Examples of controls are labels, boxes, buttons. Types of controls are: Bound control: Connected or bound to a field in the database. Unbound control: Not connected to a field in the database. Includes labels, lines, pictures, etc. Calculated control: Displays a value that is the result of an expression. Expressions are just like the ones in queries: IIF, sum, count, mathematical expression. 11
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University of Nevada, Reno College of Business Administration Creating a form Simple form Form wizard Choose table/query Choose fields Choose format More forms Blank form 12
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