• Explain Plan
    ................................................ 3 What is Cost .................................................................................. 8 Understanding the execution plan ..................................................... 8 Cardinality .....................................................
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  • DBMS
    problems using Database System. 2. Define Data Abstraction and list the levels of Data Abstraction. A major purpose of a database system is to provide users with an abstract view of the data. That is, the system hides certain details of how the data are stored and maintained. Since many database systems...
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  • Modeling the Requirements Engineering Process
    implement a working system that is specified against the specification, may be called Design Engineering. This practise provides an answer of sorts to the fundamental question : what does the information handled by my information system means? It also tends to draw the attention away from another equally...
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  • Gfgddgfdgfdggdgd
    properties that are important to the business without regard to their representation in a particular computerised system using particular software, we have what we are concerned with, implementation­independent data analysis. It is fair to ask why data analysis should be done if it is possible, in practice...
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  • NPS Journal Paper
    demystify this art, we present a set of modeling building blocks that we call “formulettes.” Each formulette consists of a short verbal description that must be expressed in terms of variables and constraints in a linear or integer linear program. These formulettes can better be discussed and analyzed...
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  • Constrained Portfolio Optimization with Multi&Objective
    bounds constraints. But it is di¢ cult to implement when there are cardinality constraints which limit the number of assets included in a portfolio. The heuristic algorithm has been introduced to resolve this problem in recent research. In this paper, I consider all relavant real world constraints– group...
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  • Modern Database Mgt
    application, Pine Valley could also consider utilizing the Internet to exchange information with suppliers. For example, when supply levels reach a certain threshold, an order for materials could be prepared and electronically submitted to suppliers...
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  • Question Bank
    Software Engineering Question Bank * 1) a) What is Software Development Life Cycle? (SDLC) (2 mks) System Development Life Cycle (SDLC) is the overall process of developing information systems through a multi-step process from investigation of initial requirements through analysis, design...
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  • Conceptual Data Modeling
    entity, entity instance, attribute, relationship, cardinality, and foreign key. Describe the entity modeling process. Discuss how to draw an entity relationship diagram. Describe how to recognize entities, attributes, relationships, and cardinalities. Describe how to model supertype/subtype structures...
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  • Sports Day Database System
    |Pg.63 | A. Objective Introduction Whenever a sports day is held, there are a lot of data needed. For example, the personal data of students, data about the events (time, place and venue) and teachers’ job etc. All these data need to be managed first in order the...
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  • Design Progress for Web Application
    aesthetics—it includes reduced user learning time, reduced user error rates, and high productivity. An object-oriented user interface design approach provides the means to achieve high usability. I’ve developed a design model for developing Web applications based on object-oriented user interface (OOUI)...
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  • Study of Kfc
    introduce the Logical Database Design and the Relational Model. At the end of the topic it is desired from the reader to be able to:  Concisely define each of the following key terms:  Key or Primary Key  Surrogate Primary Key  Second Normal Form  Foreign Key  Recursive Foreign Key  Partial Functional...
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  • Data Base Management System
    of related fields, such as the student’s name, the course taken, the date, and the grade, comprises a record. * A group of records of the same type is called a file. * A group of related files makes up a database. * A record describes an entity. * An entity is a person, place,...
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  • Business Objects User Guide
    .............15 What is a universe?................................................................................................................15 What is the role of a universe?...............................................................................................16 What does a universe contain...
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  • Database Management
    library science etc. A database is a collection of related data. Data can be defined as facts that can be recorded and that have implicit meaning. Example: Name of person, Phone number, Address. A database has the following implicit properties: • A database represents some aspect of the real world...
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  • Project Proposal
    college for Electrical course and later joined UICT for information technology in business. Currently working with East African breweries limited. What we have in common is that every one of us first did Electrical Engineering before enrolling for ICT which has made it interesting to interact amongst...
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  • project
    Information System Modelling ASSESSMENT TYPE Assignment Instructions This assessment is worth 40% of your final result for this unit of study This is a group assessment. Each group must consist 3 members. You must submit the electronic files for each part of your project on a CD or DVD disk...
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  • -------------------
    appreciated by system developers nowadays. What is a Database ? Let us try to get the answers from the different Database Management System book authors. Answer from Pratt/Adamski: A Database (DB) is structure that can store information about: 1 multiple types of entities, 2 the attributes that describe...
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  • Is Systems Development
    details of each activity Methodology Unfortunately, the words method and methodology are used interchangeably when describing development methods. Methodology is the science of studying and comparing various methods. A methodology implements a life cycle by defining activities. Each activity has...
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  • Capstone Guidelines
    Chapter I - Introduction Background of the Study The background information provides sufficient content to the reader so they can understand the purpose of the experiment, the design and the interpretation of the results. The writer must research the background information and properly site all sources...
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