CHAPTER 6 CONCLUSION‚ RECOMMENDATION AND FUTURE IMPROVEMENTS 6.1. Conclusion This thesis writing is aimed to generate a logical and conceptual data model for Galur Motor operational system. The proposed data model is expected to support the staff and owner activity in running the daily business operation. The new system of the proposed data model is expected to be able to handle the growth of the company by improving their productivity and efficiency. The new system is also expected to
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functions of storing‚ retrieving‚ adding‚ deleting and modifying data (Mike Chappel‚ 2012). 1.2 5 Advantages of database management system 1. Minimized data inconsistency – In a properly designed database‚ the chance of finding inconsistency within the data becomes very slim. 2. Less redundancy – Inside the database‚ the data is only recorded in one part of the database. This reduces the amount of redundancies (or copies) of the data as well as save storage space http://navdeep19.blogspot.com/2012/04/advantages-and-disadvantages-of
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2.7.2.3 Unified Modeling Language (UML) “UML is defined using a meta-modeling approach. Meta-model is use to analyse‚ construct and develop the frames‚ rules‚ constraints‚ models and theories. While‚ a model is defined through the instantiation of model elements defined in a meta-model‚ the main purpose of a meta-model is to explain and define the relationships among the different components of the applied model itself using processing language. This meta-modeling approach can be applied in another
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a task like working with two equations setting them equal to each other for all else to be equal. What is Normalization? Normalization as stated in our text is‚ “A technique for producing a set of relations with desirable properties‚ given the data requirements of an enterprise.” What does this mean? It means that normalization is a process and it is often to perform a sequence of tests to see whether it satisfies or violates the requirements of a given normal form. The five normal forms that
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Tour Operator Agency Database Name: Institutional Affiliation: Tour Operator Agency Database 1. Data Model a. Propose an efficient data structure that may hold the tour operator’s data using a normalization process. Describe each step of the process that will enable you to have a 2nd Normal Form data structure The Company is seeking to have a database that will accommodate and sustain its business operations as it continues with the expansion plan. The existing database system is restricted
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Assignment #1‚ 11th Edition Review Question #2) 1) Data C 2) Database Application B 3) Constraint L 4) Repository G 5) Metadata F 6) Data Warehouse M 7) Information A 8) User View J 9) Database Management System K 10) Data Independence H 11) Database E 12) Enterprise Resource Systems Planning I 13) Systems Development Life Cycle R 14) Prototyping O 15) Enterprise Data Model D 16) Conceptual Schema Q 17) Internal Schema P 18) External Schema N Problems & Exercises: 1) Attached
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information. Sometimes‚ a physical database stores only a single file with one value or word in it. 2. What is the primary purpose of a report? * A document used to display summarized or formatted data. 3. What is the primary purpose of a form? * A document that is used to gather data. 4. What is the domain of a database? * This is the focus of the database. 5. What is work shadowing? * It means following and observing persons as they go through their work routine
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1 Define data mining. Why are there many different names and definitions for data mining? Data mining is the process through which previously unknown patterns in data were discovered. Another definition would be “a process that uses statistical‚ mathematical‚ artificial intelligence‚ and machine learning techniques to extract and identify useful information and subsequent knowledge from large databases.” This includes most types of automated data analysis. A third definition: Data mining is the
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problems. There are three problems. First is deletion problem‚ second is update problem‚ third is insertion problem. Deletion problem is when you want to delete data‚ you may lost too much data. Update problem is when you want to update data‚ the sheet may have inconsistent data. Last insertion problem is when you want to insert some data‚ you must insert a row with incomplete values‚ called null values. C. Split the list into tables. Create appropriate ID columns. Create appropriate ID
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of (A) Recovery measures. (C ) Concurrency measures. (B) Security measures. (D) Authorization measures. Ans: (A) Q.5 Tree structures are used to store data in (A) Network model. (B) Relational model. (C) Hierarchical model. (D) File based system. Ans: (C ) Q.6 The language that requires a user to specify the data to be retrieved without specifying exactly how to get it is (A) Procedural DML. (B) Non-Procedural DML. (C) Procedural DDL. (D) Non-Procedural DDL. Ans: (B)
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