Entity-Relationship Diagrams (ERD) Data models are tools used in analysis to describe the data requirements and assumptions in the system from a top-down perspective. They also set the stage for the design of databases later on in the SDLC. There are three basic elements in ER models: Entities are the "things" about which we seek information. Attributes are the data we collect about the entities. Relationships provide the structure needed to draw information from multiple entities. Generally
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LAN supports all the engineers in that office. Due to the requirement for collaboration among the offices‚ all the computers should be able to view and update the data from any of the three offices. In other words‚ the data storage server within each LAN should be accessible to all computers‚ no matter where they are located. Draw a network diagram that will support this configuration. 3. A small start-up company has a Web-based customer sales system that is written by using PHP and JavaScript
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Several weaknesses of paper-based medical records have been identified‚ such as illegible handwriting‚ ambiguous and incomplete data‚ data fragmentation‚ and poor availability.1 In addition‚ paper records often become bulky with time‚ which leads to lack of overview. Because paper records still represent the usual medium for collecting and recording patient data‚ these weaknesses could impede the continuity and quality of care. Allow for all medical offices to send‚ receive‚ and share data & resources
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BAR DIAGRAMS Bar diagrams are one of easiest and the most commonly used devices of presenting most of the business and economic data. These are satisfactory for categorical data or series. They consist a group of equidistant rectangles‚ one of each group or category of the data in which the values or the magnitudes are represented by the length or height of the rectangles‚ the width of the rectangles being arbitrary and immaterial. These diagrams are called one-dimensional because in such diagrams
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shown. force Y force X 0 0 0 time 0 time What are forces X and Y ? force X A air resistance resultant force B air resistance weight C upthrust resultant force D upthrust weight The diagram shows four forces applied to a circular object. 30 N 20 N 20 N 30 N Which of the following describes the resultant force and resultant torque on the object? resultant force resultant torque A zero zero B zero non-zero
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A Venn diagram is a drawing‚ in which circular areas represent groups of items usually sharing common properties. The drawing consists of two or more circles‚ each representing a specific group or set. This process of visualizing logical relationships was devised by John Venn (1834-1923). Each Venn diagram begins with a rectangle representing theuniversal set. Then each set of values in the problem is represented by a circle. Any values that belong to more than one set will be placed in
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Love and Relationships U P D A T E S BY KOLIN GUALLAR Communication is the key to maintaining a healthy relationship. Taking serves to nurture your relationship and prevents problems or issues from festering.” Working things out is part of every relationship and everyone will do it differently. Many would have never been that serious when it comes to knowing more about how relationships work and how will it ever go well. Here’s how to deal with conflicts and how to manage your
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The following table contains information on this product’s task times and precedence relationships. TASK TASK TIME(SECONDS) IMMEDIATEPREDECESSOR A 30 - B 35 A C 30 A D 35 B E 15 C F 65 C G 40 E‚F H 25 D‚G 106878243848Draw a precedence diagram What is the workstation cycle time (takt time)? C = Production time per day/Output per day =450 mins. x 60 seconds / 360 units per day = 27000 seconds/ 360 units C = 75 N=275/75=3.66 (4) Balance this line using the
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Functional Decomposition Diagram An analyst first must understand an organization’s business functions before he or she can begin developing information systems. The functional decomposition diagram (FDD) is a business planning tool that depicts the hierarchy of business functions‚ processes‚ and subprocesses within an organization that are later described in detail using process models (chapter 6). The exercise of breaking down‚ or decomposing‚ the business functions into processes makes complex
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05/04/2015 update: 请各位在周一06/04/2015 12点前把自己负责部分补充编辑完毕，如有困难，请提前告知。 暂定周一晚上澳洲东海岸6点再简单沟通一次（取消） ————————————————————_———————————————————————— Minor case FootView 3D Module 4: Product and market development 1‚ What are the strategic options for product and/or market development for the organisation? – Ansoff’s product-matrix Ansoff’s product-matrix PRODUCTS / SERVICES Existing products New Products M A R K E T S Existing Market Market Penetration: Price drop for current measurement
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