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Explain about the E-R Diagram
Entity-relationship (E-R) diagram is detailed logical representation of data for an organisation. It is data oriented model of a system while DFD is a process oriented model. ER diagram represent data at rest whereas DFD tracks the motion of data.
ERD doesn't provide any information regarding functionality of data. It has 3 main components - data entities, their relationships and their associated attributes.
Case Study: LHM is a London based privately owned hospital which provides healthcare to its patients. The hospital uses in-house software to manage and service its patients whi
1) The process of operating a system or component under particular conditions, observing or recording the results, and making an evaluation of some aspect of the system or componen
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What is cardinality in data modeling? Cardinality in data modeling, cardinality specifies how the number of occurrences of single object is related to the number of occurrences
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what is COCOMO model and where it is used also say about COCOMO model when in use then how it act and its characteristtics details
What is meant by Data dictionary? The Data dictionary is an organized listing of all data constituents that are related to the system, with precise, accurate definitions so tha
Aim to follow the weekly schedule - some time in each tutorial class will be devoted to working in your teams of two under the guidance of your tutor on this project. However, te
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