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22 USD

Data Flow diagrams of 0 and 1 levels

22 USD

Databases & SQL

6 out of 6

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You need to build the Data Flow diagrams of 0 and 1 levels in CaseStudio.Create an informational system for supporting DAI activities.It contains information about the vehicles and their owners.One owner can have several cars, and one vehicle can have several owners.The IS keeps the archives of all operations from the registration of the TZ, and their removal from the registration.Typical for IS are requests: • Which vehicles have a number sign that contains the sequence "667".• The smallest number of owners.• Brands of cars that owned X (e.g., Ivanov I.I.)for all the time.At the design stage, the following requirements for the IS were formulated: in all documents (e.g., trust in the right to drive the TS) the vehicle is identified with a number sign.Ensure that these business needs are fulfilled.In the process of implementation of the IS, the following characteristics were revealed: in the case of loss (theft) of the number sign for the TZ, 11 new number sign is given, and the old for a certain time is placed on the list of "in search".Re-use of the number signs is also permitted.Create a migration scenario from the prototype to the updated version.What changes do you need to make in the basic task questions?Create questions that will answer the following questions: • Who was the owner of the TZ, the number marks of which contain the numbers "777" in the 2011-2015 years.• List of three persons with the highest number of TZs.Which brands of cars are most trusted?Analyze the plan of fulfilment of one of the requests.Examples of work performed
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Alexey approached the project very responsibly, which was very pleased. All of the tasks were carried out quality and quickly. Thank you for work! I recommend cooperation!

Anzhelika Neroda | Safe

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Angelica gave a clear tz, I advise for cooperation. Always in contact.

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Anzhelika Neroda

Kyiv 8

Data Flow diagrams of 0 and 1 levels

Work results

Client's review of cooperation with freelancer

Freelancer's review of cooperation with Anzhelika Neroda

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