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State Entity and relationship diagram.
ERD depicts linkage between data objects.
The ERD is the notation that is used to execute the data modelling activity.
The primary mechanism involved in the ERD is:
Data objects, attributes relationships and various types of indicators.
ZeroJet, a new low cost airline, wants a brand new web-based system to allow people to book seats for flights on-line. They want an automated check in system which has no staff.
Write short notes on empirical estimation models. Estimation model for computer software uses empirically derived formulas to expect effort as a function of line of codes (LOC)
What are the types of Software system requirements? Functional requirements: Services the system should give. Non-functional requirements: Constraints on the services.
What is the use of User Interface prototyping? This prototyping is used to pre-specify the look and feel of user interface in an effective way.
Define Data Dictionary. The data dictionary can be explained as an organized collection of all the data elements of the system with precise and rigorous explanations so that us
Why is maintenance of a software important? The alteration of a software product, after delivery, to correct faults, to improve performance or other attributes, or to adapt th
Boundary Value Analysis: It's widely examined that input values at the extreme ends of input domain cause more errors in system. More application errors happen at the boundaries
State the Testing and Debugging Testing is process of verifying if the application matches needs and reporting bugs; Testing is usually done by an independent testing team wher
Determine the Sanity testing - Sanity testing is used to ensure that conflicting or multiple functions or variables don't exist in system. - It verifies that components of
What are decision tables? Why do we use them? - Decision tables are specification-based techniques that are more focused on business rules or business logic. - A decision ta
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