attribute? An attribute is a property of an entity. It describes a part of an entity. Entity could have one or more attributes. What is ER diagram? An Entity Relationship Diagram is diagrammatic representation of the logical structure of a database system. Describe the concept of keys. Candidate key An attribute that uniquely identifies a row is called candidate key. It is also called das surrogate key. Primary key A candidate key that you choose to identify
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CONCEPTS OF PROGRAMING LANGUAGES (COMPUTER SCIENCE 7) PRELIMINARIES Reasons for Studying Concepts of Programming Languages 1. Increased capacity to express ideas – People with limited grasp of natural language are limited in the complexity of their thoughts‚ it is difficult for people to conceptualize structure that they cannot describe‚ verbally or in writing. Programmers in the process of developing software encounter the same constraint. Programmers can increase the range of their software-development
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Between the levels of government there exist different structures‚ the federal government is a body is the government body of individuals at the federal level that sets and administers public policies‚ in US the federal government is established by the US constitution guides and it helps to maintain the use of power within the federation. In the US the federal government has three branches with which it operates and share sovereignty over the United States with the individual government of the states
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LANGUAGE NOTES Language -- how we combine spoken‚ written words as we think and communicate Structure a. Phonemes – smallest distinctive sound unit b. Morphemes – smallest unit that carries meaning c. Grammar – a system of rules that allows us to understand one another i. Semantics – the study of meaning in language ii. Syntax – a set of rules for combining words in a sentence Development d. Babbling stage
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Levels of Language Proficiency Elementary to Limited Proficiency * The first two levels of language proficiency deal with the absolute basics of the language. These levels are where speakers learn vocabulary and grammar‚ especially how to properly conjugate words and how to speak in the past‚ present and future tenses. By the time these two levels are completed students should have some basic grasp of the language‚ and they should be able to hold casual‚ relatively simple conversations about
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TABLE OF CONTENTS Title Page I. Introduction 3 II. Functional Structure 4-6 III. Geographical Structure 7-9 IV. Product Structure 10-12 V. Matrix Structure 13-15 VI. Conclusion 16 VII. References 17 INTRODUCTION Organisational is a key element in a process of management. It is a system of structural relationship‚ all the way through which people under
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Analysis of Language Levels Monday october 28‚ 2013 Formal linguistics : speaks about language in general. Then they divide it to levels‚ such as phonology ‚ morphology ‚ semantics and syntax (pragmatics) It is important to remember the distinction between phoneticsand phonology . while phonetics is concerned with the description of how speech sounds are produced by speech organs and perceived by hearer I.E production and percepton . Phonology deals with how these speech sounds
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that most people overestimated their abilities and did not take into account the method of encoding. Memory and Self Assessment 3 Levels of Processing and their effect on Information Retention Do we perceive our ability to retain information accurately? Significant time and effort has been invested into researching memory and the effect the depth of processing has on the ability to recall words. Research has shown that semantic encoding has resulted in significantly better word retention than
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Levels of programming languages There are two major levels namely; 1. Low-level languages 2. High-level languages These two languages are sub-divided into five generations. 1st and 2nd gen - low level languages 3rd‚ 4th‚ and 5th – high level Xtics of low level languages. 1. They are easily understood by the computer directly i.e. they require little effort to translate into computer understandable form. 2. These languages are hardware oriented and thus not portable i.e. such that a
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The model put forward by Craik and Lockhart (1972) which showed the levels of processing in memory focuses on the processes involved in memory. They focused on two types of processing; shallow processing and deep processing. Both argued that memory is a processing continuum. They also proposed that different types of rehearsal lead to different types of processing. For example‚ shallow to deep processing. In order to prove their theory Craik and Lockhart carried out an experiment. I also took
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