systems. Some of design phase diagrams are presented that could be useful for software developing companies. Index Terms—B2C‚ Electronic Commerce‚ Online Shopping System‚ SDLC Phases. I. INTRODUCTION As electronic services are dependent on many governmental and private organizations‚ they grow and develop slowly in developing countries. A case in point could be online payment services which could be used whenever traditional banks change their systems into modern ones or shipping rates and services
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1. Draw an E-R diagram for each of the following situations (if you believe that you need to make additional assumptions‚ clearly state them for each situation): a. A hospital has a large number of registered physicians. Attributes of PHYSICIAN include Physician_ID (the identifier) and Specialty. Patients are admitted to the hospital by physicians. Attributes of PATIENT include Patient__ID (the identifier) and Patient_Name. Any patient who is admitted must have exactly one admitting physician
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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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The Electric Miles Davis Born in Alton‚ Illinois‚ Miles Davis grew up in a middle-class family in East St. Louis. Miles Davis took up the trumpet at the age of 13 and was playing professionally two years later. Some of his first gigs included performances with his high school bandand playing with Eddie Randall and the blue Devils. Miles Davis has said that the greatest musical experience of his life was hearing the Billy Eckstine orchestra when it passed through St. Louis. In September
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Food Miles A food mile is the distance food travels from the farm to the store where you buy it‚ and these miles are costly to the environment. They are among the fastest-growing sources of greenhouse gas emissions worldwide. The concept of food miles started in the early 1990’s in the United Kingdom .The more the food miles that are attached to a particular food‚ the less sustainable and the less environmentally the food is desired. Professor Tim Lang at the Sustainable Agriculture Food and Environment
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FISHBONE DIAGRAM The cause-and-effect diagram was initially developed by Japanese quality expert Professor Kaoru Ishikawa. In fact‚ these diagrams are often called Ishikawa diagrams; they are also called fishbone charts for reasons that will become obvious when we look at an example. Cause-and-effect diagrams are usually constructed by a quality team. For example‚ the team might consist of service designers‚ production workers‚ inspectors‚ supervisors‚ quality engineers‚ managers‚ sales representatives
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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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a collection of well defined and distinct objects‚ considered as an object in its own right. Sets are one of the most fundamental concepts in mathematics. Developed at the end of the 19th century‚ set theory is now a ubiquitous part of mathematics‚ and can be used as a foundation from which nearly all of mathematics can be derived. In mathematics education‚ elementary topics such as Venn diagrams are taught at a young age‚ while more advanced concepts are taught as part of a university degree. A
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death‚ there are no exceptions but‚ oh God‚ sometimes the Green Mile seems so long" said Paul Edgecombe after his friend died and he understood that his Green Mile doesn’t have end. Paul Edgecombe is one of the main characters in "The Green Mile" movie. This film is a drama and it was nominated to an Academy Award in 1999. "The Green MIle" was directed bvy Frank Darabont and adapted by him from the Stephen King novel "The Green Mile". The main characters in this movie Paul Edgecombe played by Tom
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