Create an ER-model and a relative model from a database
45 USD 
The task is to design the ER model of the future automated information system (AIS).The subject area of the system, the functional requirements of the system and the types of users of the system will be selected independently.1 .The ER model must contain: at least 5 essential and non-obligatory attributes at least one derivative attributes at least one complex attributes at least one multi-significant attributes must be at least one connection of shortness n:m and several connections of shortness 1:n at least one recurrent connection 2.A comment on the ER-model to indicate the formulas of the calculation of each output attribute.Example: term_day_contract = date_depletion_contract - date_signature_contract.3 .With a comment on the ER model to specify all corporate data integrity limits.Example: age of employee = 18 years.and 4.The number of types of AIS users must be not less than 2.Example of the finished model - Supermarket.png
It is desirable to take the foundation of something else, not a supermarket, it can be a bar, restaurant, etc.Per with some of your own characteristics, you will get to your own mind.Relational to this ER-model.This will be a table(The ready empty table for this task is attached).An example of the building is in the Library_ER_RM file(An example of filling the table of the description of the relational model (“Bibliothèque”)).Additionally, the general rules for the translation of any ER model into the relative are also attached.
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Client's review of cooperation with Vladyslav Y.
Create an ER-model and a relative model from a databaseThe project was performed well and in a short time. I recommend this executive.
Freelancer's review of cooperation with Oleg Rusak
Create an ER-model and a relative model from a databaseIt’s great, I recommend cooperation.
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2 days45 USD
1298 26 2 2 days45 USD
Good night, ready to get to work, I have experience in it, I have done it many times. The results will be within 2 days.
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Winning proposal2 days45 USD
1330 62 2 1 Winning proposal2 days45 USD
Welcome to.
I can develop an ER-model and a relative model.
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