agents (REA) model as a means of specifying and designing accounting information systems that serve the needs of all of the users in an organization. The chapter is comprised of three major sections. The first introduces the REA approach and comments on the general problems associated with traditional accounting practice that can be resolved through an REA approach. This section presents the REA model and describes the structure of an REA diagram. The basic REA model consists of three entity types (resources
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The entity-relationship model (or ER model) is a way of graphically representing the logical relationships of entities (or objects) in order to create a database. entity type is a collection of entity instances sharing similar properties Strong Entity Vs Weak Entity An entity set that does not have sufficient attributes to form a primary key is termed as a weak entity set. An entity set that has a primary key is termed as strong entity set. A weak entity is existence dependent. That is the
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Saudi Arabia‚ and a shipment slip will be generated from the branch and attached to the shipped package. Develop an entity relationship diagram model for this application. Do the following tasks when developing your ERD model: 1. Write the business rules 2. Determine entities‚ relationships‚ and relationship class (1-1‚ 1-M‚ and M-M). 3. Resolve M-M relationships. 4. For each entity‚ define a unique identifier and two more attributes. Business Rules: Business Rule 1: a Customer makes more than
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A data model is a collection of high-level data description constructs that hide many low-level storage details A semantic data model is a more abstract‚ high-level data model that makes it easier for a user to come up with a good initial description of the data in an enterprise. A database design in terms of a semantic model serves as a useful starting point and is subsequently translated into a database design in terms of the data model the DBMS actually supports. A widely used semantic
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37 minutes Results Displayed All Answers‚ Submitted Answers‚ Correct Answers Question 1 0 out of 1 points The figure below is an example of a(n): Selected Answer: [None Given] Answers: supertype/subtype hierarchy. hierarchical data model. entity cluster. None of these. Question 2 0 out of 1 points Which of the following statements is true about the figure shown below? Selected Answer: [None Given] Answers: A rental unit must be either an apartment or a house‚ and cannot
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revised waterfall model approach of Software Development Life Cycle (SDLC). Bomarius et al.‚ (2009) stated that Walter Royce’s article in 1970 is the first publication on the waterfall model. Waterfall model is seen flowing steadily downward resemble water cascading down a series of steps. In this approach‚ there are five phases involved that are requirements‚ design‚ implementation‚ testing and documentation. Figure 3.1 illustrates the revised waterfall model. Revised waterfall model being choose for
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CONTENTS CERTIFICATE DECLARATION ACKNOWLEDGEMENT DISADVANTAGES OF OLD SYSTEM ADVANTAGES OF NEW SYSTEM REQUIREMENT SPECIFICATIONS DATA FLOW DIAGRAM (DFD) ENTITY RELATIONSHIP DIAGRAM (ERD) DATA DICTIONARY FORMS DESIGN DATA REPORTS DISADVANTAGES OF OLD SYSTEM As we know the manual processing is quite tedious‚ time consuming‚ less accurate
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STEP 1 | | Read the following business requirements closely to determine the entities and relationships needed to fulfill the requirements. The nouns in the paragraph will tell you the entities that will be needed. The verbs in the paragraph will help you determine the relationships between the entities. Muscles Health Club Database Requirements | The Muscles Health Club needs a database to keep track of its members‚ their personal trainers‚ and the fitness classes they are taking.Employees
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REPORT ON USES OF DATA BASE IN DIFFERENT SECTORS BY MANAGERS SUBJECT- MANAGEMENT INFORMATION SYSTEM SUBMITTED TO: DR. RICHA MISRA SUBMITTED BY: SHUBHADIP BISWAS ROLL NO.-FT-10-948 SEC-A GDM 10-12 IILM-GSM DATE
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Question 1 What is a data warehouse? What problems does it solve for a business? A data warehouse is a place where data is stored for archival purpose‚ analysis purpose. Usually a data warehouse is either a single computer or many computers servers tied together to create one giant computer systems. Data warehouse solve a lot of problems to companies as it helps to structure files and avoid unnecessary duplication of data. Data warehouse also allows to easily updating data and encourages management
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