TYPES OF DATA FLOW DIAGRAM: LOGICAL DFD PHYSICAL DFD Data Flow Diagrams (DFDs) are categorized as either logical or physical. A logical DFD focuses on the business and how the business operates. It describes the business events that take place and the data required and produced by each event. On the other hand‚ a physical DFD shows how the system will be implemented. Design Feature Logical Physical What the model depicts How the business operates How the system will be implemented
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-Working capital cycle is a firm’s current assets. Current assets are those that the firm’s expect to convert into cash within a year. b) Explain the working capital cycle and illustrate your answer by using a diagram. -The working capital cycle is measures the time between paying for goods supplied to you and the final receipt of cash to you from their sale. It is desirable to keep the cycle as short as possible as it increases the effectiveness of working capital cycle. The diagram below show how
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The Business Cycle: Recession: Characteristics: The economy slows down‚ and the level of sales and production orders start declining. Production facilities become underutilized‚ and companies respond by reducing the work rate. Workers who had been hired basis are laid off‚ and/or this reduces their disposable income. Celebrity Example: Stephen Baldwin Filed for bankruptcy. Personal debt of $2.3 million. Owed more than $1 million in taxes. Victim of the housing market collapse. Trough: Characteristics:
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The carbon cycle shows how carbon is recycled -Carbon dioxide is taken in by plants in order to carry out photosynthesis and make food. -The carbon from the carbon dioxide is used to make carbohydrates‚ fats and proteins that make up the plant body. For example the cell wall of plants is made from cellulose - a carbohydrate. -Some of this carbon is returned into the atmosphere as carbon dioxide when the plant respires. When these plants are eaten by other animals this carbon becomes part
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System Analysis and Design/ Tools for systems analysts Learning Objectives Learning Objectives What are Data Flow Diagrams (DFDs)? Why they are useful? How are they developed? How to level DFDs? Good style conventions in developing DFDs Difference between Logical and Physical DFDs Tools available to draw DFDs V. Rajaraman/IISc. Bangalore //V1/June 04/1 System Analysis and Design/ Tools for systems analysts Motivation Motivation WHY DFD ? Provides an overview of
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Apollo Accounting and Control Systems: Purchasing and Expenditure Cycle The employee prepares a purchase requisition and has a supervisor approve it. The supervisor retains Copy 2 of the pre-numbered purchase requisition for the department‚ sends Copy 1 to the Purchasing Department and Copy 3 to Accounts Payable. When the Purchase Department receives the purchase requisition‚ they search the approved vendor list and consult the listed prices for the goods desired for each vendor. Once a vendor
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releasing more energy and waves of shorter wavelengths. 3. a. Draw the energy-level diagram and write the electronic configuration for zirconium (element 40). (3 marks) Energy-level diagram for zirconium is drawn below: 4d 5s 4p 3d 4s 3p 3s 2p 2s 1s Electronic configuration for zirconium is given below: 1s2 2s2 2p6 3s2 3p6 4s2 3d10 4p6 5s2 4d2 b. Use the diagram to explain why the Zr4+ ion exists. (2 marks) When the outer orbitals are filled with
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CHAPTER 4 HARDWARE DESCRIPTION 4.0 Arduino: The Arduino Uno is a microcontroller based on the ATmega328. It has 14 digital input/output pins in which 6 can be used as PWM‚ 6 analog inputs‚ a 16 MHz ceramic resonator‚ a USB port‚ a power jack‚ an ICSP header‚ and a reset button. It contains everything needed to support the microcontroller; simply connect it to a computer with a USB cable or power it with a AC-to-DC adapter or battery to get started.[11] The Uno differs from all preceding boards in
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Patient leaves If Follow Up appointment requires then make an Appointment Date‚ Patient leaves Question 2: Draw the Event Process Chain Diagram for a Business Process based on the following Activities. The following are the Events and Functions for a Business Process. Develop an Event Process Chain (EPC) Diagram by using the three connectors OR‚ AND‚ XOR. Activities: If the customer order is received‚ check for the availability‚ either the articles are available or
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This is project is about the phoenix payroll system. This payroll system is used by the Canadian federal government to manage the payroll for all the federal employees. This project was taken up by IBM in 2011‚ which was funded by the government. This payroll was previously handled by a company named Public Works‚ the main purpose was to replace federal governments payroll system and centralise payroll of the employees into one system. Their aim was to simplify the system and make it more efficient
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