mywbut.com Data Flow Diagrams (DFDs) 1 mywbut.com Specific Instructional Objectives At the end of this lesson the student will be able to: • • • Identify the activities carried out during the structured analysis phase. Explain what a DFD is. Explain why constructing DFDs are important in arriving at a good software design. • Explain what a data dictionary is. • Explain the importance of data dictionary. • Identify whether a DFD is balanced. Structured Analysis Structured analysis
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Figure 1.0: Entity Relationship Diagram of Generic Academic Performance Monitoring System Figure 2.0: Context Diagram of Generic Academic Performance Monitoring System The figure 2.0 represents the two (2) users of the Generic Academic Performance Monitoring System namely the Administrator and the Professor. The Administrator entity shows the capability to access the system; manage account by modifying account’s profile; managing member’s account such as creating new user profile and updating
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KRISTEN ’S COOKIE COMPANY (A1) The overview of the process: QUESTION 1 If we make a table‚ we can see that the minimum time to fill a rush order is 26 minutes. ACTIVITY RESOURCE TIME START TIME FINISH TIME Order Entry E-mail 0 minutes 00:00 00:00 Wash Bowl‚ Mix Self 6 minutes 00:00 00:06 Fill Tray Self 2 minutes 00:06 00:08 Start Oven Roommate 1 minute 00:08 00:09 Baking Oven 9 minutes 00:09 00:18 Remove Roommate 0 minutes 00:18 00:18 Cool None 5 minutes 00:18 00:23
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OPIM 902 – Operations Management Case Analysis – Kristen’s Cookie Company Arif Durak‚ İlker Koç‚ Nihat Alpin Mütevellioğlu‚ Uğur Günal‚ Ersan Bilik 31 May 2014 1) How long will it take you to fill a rush order? For an order that is for 1 dozen (or less) cookies with the same ingredients‚ it takes 26 minutes assuming the customer pays after packing. If they pay during the cooling period‚ a minute could be saved. Time (minutes) Operation 0 Take Order 6 Wash
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Starting up a cookie company on-campus You and your roommate are preparing to start a company producing cookies in your oncampus apartment. By starting up this business‚ you want to provide fresh cookies to starving fellow students late at night. However‚ you still have to figure out some aspects of the business model such as the price to charge‚ whether you will be able to make profit and how many orders you can accept. The business concept You have an extraordinary idea: to bake fresh cookies
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Kristen’s Cookie Company Case Study and Analysis Forecasting and Operations Management Saint Mary’s College of California Executive MBA Program Jessica Marie – www.jessicamariemba.com Kristen’s Cookie Company Agenda Introduction and Preliminary Modeling Key Questions and Problems for Further Thought Recommendations for Improvement Q & A Session and Discussion Kristen’s Cookie Company Introduction Kristen’s Cookie Company Mission Statement: Born from a hunger to feed the student
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5 Design Decision Styles. What’s Yours? By Jared M. Spool Originally published: Jan 21‚ 2009 In the early days of e-commerce‚ we studied how seasoned hiking customers bought hiking boots online. Two sites in our study‚ L.L. Bean and REI‚ both sold virtually identical boots at the same price with practically the same marketing copy. Yet the customers we studied were far more likely to buy the boots on the REI site than on the L.L. Bean site. Why? Because the product pictures on the REI site showed
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Free Data Flow Diagrams Tutorial DFD Tutorial Data Flow Diagrams - Introduction Data flow diagrams can be used to provide a clear representation of any business function. The technique starts with an overall picture of the business and continues by analyzing each of the functional areas of interest. This analysis can be carried out to precisely the level of detail required. The technique exploits a method called top-down expansion to conduct the analysis in a targeted way. [pic] The
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4.3 DATA FLOW DIAGRAM A data flow diagram is a graphical technique that depicts information flow and transforms that are applied as data move from input to output. The DFD is also known as Data Flow Graph or Bubble Chart. The DFD is used to represent increasing information flow and functional details. Also DFD can be stated as the starting point of the design phase that functionally decomposes the requirements specifications down to the lowest level of detail. A Level 0 also called a fundamental
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Level (0) Data Flow Diagram [pic] Level (1) Data Flow Diagram of General Enquiry [pic] Level 1DFD of Passenger Enquiry Section [pic] Level 2 DFD of Booking [pic] Level 2 DFD Cancellation ----------------------- Passenger 1.0 General Enquiry 2.0 Passenger Enquiry 3.0 Booking Counter 4.0 Cancellation Information Booking Inquiry
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