Introduction to Classes of Data Items
Basically there are three classes of data items to be considered, as shown fig 3.15,
Data Element: The smallest unit of data that cannot be further decomposed.
Data Structure: Once data items have defined the data structure required by the particular system under consideration can be identified. The terms normally used to define data structures are:
Database: A collection of records which are interrelated for purposes of processing to meet use requirements. For an example in a deliveries database, the delivery record would be interrelated with the order record product record customer record and invoice record, in such a way to minimize duplication of data.
Data Stores and Data Flows: Data stores and data flows are made up of data structures and elements. Consequently, data store and flow entries contain data structure and data elements. The data is these entries are described using any of the above notations. Entries about data stores and flows also include other references. For example, the data flow description contains the origin and destination of the data flow. It also contains the physical description of the data flow, in this case stating that it takes the form of paper invoices. Data store descriptions also contain physical information, such as the medium used to store the data and where it is located.
Latest technology based Software Engineering Online Tutoring Assistance
Tutors, at the www.tutorsglobe.com, take pledge to provide full satisfaction and assurance in Classes of Data Items homework help via online tutoring. Students are getting 100% satisfaction by online tutors across the globe. Here you can get homework help for Classes of Data Items, project ideas and tutorials. We provide email based Classes of Data Items homework help. You can join us to ask queries 24x7 with live, experienced and qualified online tutors specialized in Classes of Data Items. 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 Classes of Data Items. 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.
tutorsglobe.com biotic factor assignment help-homework help by online environmental factors tutors
The important advantages of Inter Firm Comparison are Improvement in efficiency, Increased productivity, Reliable information, Assistance to Government, etc.
tutorsglobe.com physiological effects of sleep assignment help-homework help by online sleep tutors
tutorsglobe.com germ line cell gene therapy assignment help-homework help by online gene therapy tutors
tutorsglobe.com process of urea assignment help-homework help by online urea cycle tutors
tutorsglobe.com gamopetalous and regular assignment help-homework help by online forms of corolla tutors
Chemistry of the Noble Gases tutorial all along with the key concepts of Rediscovery of Noble gases, Position of Noble Gases in the Periodic Table, Occurrence, Isolation and uses of noble gases and General Characteristics of noble gas
Overhead costs are also known as indirect or supplementary costs. These are costs that cannot be completely debited directly to a specific job.
tutorsglobe.com structures of interhalogen compounds assignment help-homework help by online interhalogen compounds tutors
Tissue system is a group of tissues that performing an identical function irrespective of its position in the plant body.
infrared (transmitting or passing) filters can be created from several dissimilar materials. one type is created of poly sulfones plastic which blocks over 99percent of the visible light spectrum from “white” light sources.
www.tutorsglobe.com offers leveling of dfd homework help, assignment help, case study, writing homework help, online tutoring assistance by computer science tutors.
tutorsglobe.com herspes simplex virus assignment help-homework help by online herpes viruses tutors
tutorsglobe.com promoting development in private sector assignment help-homework help by online objectives of fiscal policy tutors
tutorsglobe.com skeletal biology assignment help-homework help by online humanities tutors
1938901
Questions Asked
3689
Tutors
1474037
Questions Answered
Start Excelling in your courses, Ask an Expert and get answers for your homework and assignments!!