Introduction to Data Dictionary
Data dictionary is an essential and important tool in the software development. Process as its name indicates, it is a comprehensive definition of all the data (and control) items (elements) in given software. Or it can state as it is a structured central repository of data about data. In a data dictionary one should find a clear and complete definition of each data item and its synonyms. The data dictionary often becomes source document for specification and design of input processing files and data structures processing algorithms and design of output processing. Typically data dictionary development begins very early in the development process and expands as the software development process continues and more detail becomes available.
To describe the data dictionary sufficient information should be collected about data items. As such there are a number of methods to collect the information about data items. In some methods the data dictionary as a repository is not developed and the related information about the data items is collected in the requirements design and interface specification only. In the other development methods a separate document as a data dictionary is made to reside information.
Format of Data Dictionary
Although the format of data dictionaries varies from method to method, most use the followings table3.7, called as project
Data element sheet and information about the data item:
Name - a formal or primary name of the data or control item data storage or external entity.
Alias - other names or acronyms of data item.
Use - a listing of processes which use the data or control item. And how or when it is used.
Content description - standard format for representing the contents of data or control item.
Supplement / additional Information - other information such as limitations, restriction defaults or initial value etc.
The description format is frequently given a highly structured form but it is to be noted that consistency in naming must be followed. Except the content description all the information may be provided directly. To develop the content description of a data item some notations (symbols) as shown in table3.8.
As an example using the tables 3.7 and3.8, a telephone number might appear in data dictionary as shown in table3.9,
Latest technology based Software Engineering Online Tutoring Assistance
Tutors, at the www.tutorsglobe.com, take pledge to provide full satisfaction and assurance in Data Dictionary homework help via online tutoring. Students are getting 100% satisfaction by online tutors across the globe. Here you can get homework help for Data Dictionary, project ideas and tutorials. We provide email based Data Dictionary homework help. You can join us to ask queries 24x7 with live, experienced and qualified online tutors specialized in Data Dictionary. Through Online Tutoring, you would be able to complete your homework or assignments at your home. Tutors at the TutorsGlobe are committed to provide the best quality online tutoring assistance for Software Engineering homework help and assignment help services. They use their experience, as they have solved thousands of the software engineering assignments, which may help you to solve your complex issues of Data Dictionary. TutorsGlobe assure for the best quality compliance to your homework. Compromise with quality is not in our dictionary. If we feel that we are not able to provide the homework help as per the deadline or given instruction by the student, we refund the money of the student without any delay.
www.tutorsglobe.com offers chemical bonding homework help, chemical bonding assignment help, online tutoring assistance, physical chemistry solutions by online qualified chemistry tutor's help.
troubleshooting and recitation of the fault in an am receiver - usually two types of faults are occurred in radio receiver. they are - live fault, dead fault.
Gnathostomata tutorial all along with the key concepts of Features of Superclass Gnathostomata, Characteristics of Class Placodermi, Cartilaginous fishes and Features of Class Osteichthyes
Theory and lecture notes of Finite Difference Method-Nonlinear ODE all along with the key concepts of differential equations, Heat conduction with radiation, Relaxation Method, Implementing the Relaxation Method. Tutorsglobe offers homework help, assignment help and tutor’s assistance on Finite Difference Method-Nonlinear ODE.
Heat Engines tutorial all along with the key concepts of Basic Operation of Heat Engine, Thermodynamic Efficiency of Real Engines, Efficiency of Otto Engine, Efficiency of Stirling Engine, Heat Flow into Ideal Stirling Engine
The driver transformer contains two secondary coils that are wound in reverse directions. It sends the needed signals to the output transistors.
General principles of Volumetric Analysis tutorial all along with the key concepts of Requirements for Titration, Methods of Detecting Completion of a Titration Reaction, Features of standard solution, Types of Volumetric Procedures, Volumetric calculation
www.tutorsglobe.com offers hydroboration reactions homework help, hydroboration reactions assignment help, online tutoring assistance, organic chemistry solutions by online qualified tutor's help.
Classification of Plants and Related Organisms tutorial all along with the key concepts of Five Kingdoms, Monera, Protista, Fungi, Plantae, Animalia, Environmental Degradation and Plant Diversity
tutorsglobe.com chemosynthesis assignment help-homework help by online plant physiology tutors
maxwell and calusius-clapeyron equation tutorial all along with the key concepts of the maxwell relations, gibbs-helmholtz equation and clausius-clapeyron equation
tutorsglobe.com radiation assignment help-homework help by online control of microorganisms tutors
Preparation and Properties of Ethers tutorial all along with the key concepts of Dehydration of alcohols, Williamson Synthesis, Heating Alkyl halides with dry silver oxide, Grignard reagents, Oxymecuration-demecuration, Chemical Properties of Ethers
tutorsglobe.com method of computing cost of capital assignment help-homework help by online cost of capital tutors
www.tutorsglobe.com offers Programming Languages homework help, assignment help, case study, writing homework help, online tutoring assistance by computer science tutors.
1964261
Questions Asked
3689
Tutors
1483443
Questions Answered
Start Excelling in your courses, Ask an Expert and get answers for your homework and assignments!!