Login

Forums for the Business Analyst

 
  Modern Analyst Forums  Business and Sy...  General  howto historicize concept - Database ER diagram
Previous Previous
 
Next Next
New Post 10/6/2019 12:52 AM
User is offline zio_mangrovia
1 posts
No Ranking


howto historicize concept - Database ER diagram 

In this diagram for concept model (excuse for italian language), I'm not able to understand 2nd diagram because according to my opinion generalization is FULL, It should be down as filled arrow, what do you think?

If IMPIEGO(job) has cardinality (1,1), It means that for each IMPIEGO It exists at least one PERSONA(employee) and IMPIEGO(job) for this PERSONA(employee) can be current or past,

so Generalization cannot be partial. What do you think?

 






 

Impiego corrente = current job

Impiego passato = past job

persona = employee

azienda = company

inizio = start

fine = end

indirizzo = address

città = town;



 
 
 Page 1 of 1
Previous Previous
 
Next Next
  Modern Analyst Forums  Business and Sy...  General  howto historicize concept - Database ER diagram

Community Blog - Latest Posts

Bekka Ball
Bekka Ball

Recipe Redesign: There Is No Box, Only Possibilities

I have always loved cooking. I learned from my Grandma June and her kitchen was her sanctuary, a small, warm sunlit space filled with jars of spices, stacks of cookbooks, and the comforting smell of something always on the stove or baking in the oven. Grandma June was as great a cook as she was a teacher to me. She never followed a recipe “to...
Lenny Steinman
Lenny Steinman

BPO Explained: A Smart Guide for Today’s Leaders

Now, I know, I don’t know what kind of new intro BPO may require, but at least I can promise you upfront that I have something different to say about Business Process Outsourcing or simply BPO. What is it? This hasn't been a call center job or a sales job as we all think. It is a mammoth profile, and firms are grappling to ge...
Victoria Ogunsanya
Victoria Ogunsanya

Leveraging Blockchain Technology for Enhanced Data Security in Business Operations

Leveraging Blockchain Technology for Enhanced Data Security in Business Operations
In an age where data breaches and cyberattacks are becoming more frequent and sophisticated, businesses are searching for robust solutions to safeguard their data. Blockchain technology has emerged as a promising tool in this quest, offering a way to secure data with unparalleled reliability. Although initially known for powering cryptocurrencies l...

 



Upcoming Live Webinars




 

brought to you by Modern Analyst Media LLC enabling practitioners & organizations to achieve their goals using:

Copyright 2006-2025 by Modern Analyst Media LLC