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What are the various elements of data design?
i. Data object - The data objects are identified and relationship between various data objects can be shown using ERD or data dictionaries.
ii. Databases - Using software design model, the data models are translated into data structures and data bases at the request level.
iii. Data warehouses - At the business level useful information is identified from several databases and the data warehouses are formed.
Question This question refers to the database Schema. Express the following queries in SQL: (a) List the First Name, Last Name and telephone number of all employees who wer
What is Constant? In software or software testing, a constant is a meaningful name that shown a number, or string, that does not alter. Constants are variables that remain the s
What is Data integrity? Ans) Data integrity is one of the six fundamental components of information security. Data integrity is the soundness, completeness and wholeness of the
What is Exception? Ans) An event that causes suspension of normal program implementation. Types contain addressing exception, operation exception, data exception, overflow excep
What is Data Dictionary? Data dictionary is a storehouse of data giving information about data. It is a list of terms and their meaning for all data items and data files of a s
What does Validation represent? Validation shows the set of activities that ensure that the software that has been built is satisfying the customer needs.
Common coupling: Common coupling is when two modules share the similar global data (e.g. a global variable). Changing the shared resource implies changing all the modules using it
Usability testing is testing of 'user-friendliness'. User interviews, surveys, video recording of user sessions and other methods can be used. Programmers and developers are usuall
Q. How can we use Spiral model in large-scale systems? Spiral model is as well known as spiral life cycle model is the system development life cycle model utilized in informati
Ask quewhat is code restructuringstion #Minimum 100 words accepted#
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