Este documento presenta un resumen de los conceptos clave del Modelo Entidad-Relación (MER) y los diagramas de flujo de datos. Explica que el MER expresa entidades y sus interrelaciones para modelar los datos de un sistema de información, mientras que los diagramas de flujo de datos representan los procesos, flujos de datos, y almacenamientos en un sistema.
Contribución en la VI Jornada de Buenas Prácticas en la docencia universitaria con apoyo de TIC celebrada en el Edificio Paraninfo de la Universidad de Zaragoza el 16 de septiembre de 2015 y organizada por la Cátedra Banco Santander de la Universidad de Zaragoza.
Ayman is mijn bureau voor vernieuwing. Ik help u graag te vernieuwen door te inspireren, te innoveren en te realiseren. http://www.ayman.nl/blog
Rollen die ik vervul zijn die van adviseur, conceptontwikkelaar en interim-ondersteuning.
U kunt mij inzetten om te bedenken en realiseren van bijv. nieuwe producten en/of diensten, nieuwe klantgroepen, nieuwe (distributie)kanalen en nieuwe marktbenaderingen.
Mijn specialisaties zijn:
- Marketing & Communicatie
- Internet & Nieuwe media
- Ondernemerschap & Innovatie
“Als alle dagen hetzelfde lijken, komt dat doordat we de goede dingen niet meer zien die zich aandienen in ons leven.” Paulo Coelho
Contribución en la VI Jornada de Buenas Prácticas en la docencia universitaria con apoyo de TIC celebrada en el Edificio Paraninfo de la Universidad de Zaragoza el 16 de septiembre de 2015 y organizada por la Cátedra Banco Santander de la Universidad de Zaragoza.
Ayman is mijn bureau voor vernieuwing. Ik help u graag te vernieuwen door te inspireren, te innoveren en te realiseren. http://www.ayman.nl/blog
Rollen die ik vervul zijn die van adviseur, conceptontwikkelaar en interim-ondersteuning.
U kunt mij inzetten om te bedenken en realiseren van bijv. nieuwe producten en/of diensten, nieuwe klantgroepen, nieuwe (distributie)kanalen en nieuwe marktbenaderingen.
Mijn specialisaties zijn:
- Marketing & Communicatie
- Internet & Nieuwe media
- Ondernemerschap & Innovatie
“Als alle dagen hetzelfde lijken, komt dat doordat we de goede dingen niet meer zien die zich aandienen in ons leven.” Paulo Coelho
2024 State of Marketing Report – by HubspotMarius Sescu
https://www.hubspot.com/state-of-marketing
· Scaling relationships and proving ROI
· Social media is the place for search, sales, and service
· Authentic influencer partnerships fuel brand growth
· The strongest connections happen via call, click, chat, and camera.
· Time saved with AI leads to more creative work
· Seeking: A single source of truth
· TLDR; Get on social, try AI, and align your systems.
· More human marketing, powered by robots
ChatGPT is a revolutionary addition to the world since its introduction in 2022. A big shift in the sector of information gathering and processing happened because of this chatbot. What is the story of ChatGPT? How is the bot responding to prompts and generating contents? Swipe through these slides prepared by Expeed Software, a web development company regarding the development and technical intricacies of ChatGPT!
Product Design Trends in 2024 | Teenage EngineeringsPixeldarts
The realm of product design is a constantly changing environment where technology and style intersect. Every year introduces fresh challenges and exciting trends that mold the future of this captivating art form. In this piece, we delve into the significant trends set to influence the look and functionality of product design in the year 2024.
How Race, Age and Gender Shape Attitudes Towards Mental HealthThinkNow
Mental health has been in the news quite a bit lately. Dozens of U.S. states are currently suing Meta for contributing to the youth mental health crisis by inserting addictive features into their products, while the U.S. Surgeon General is touring the nation to bring awareness to the growing epidemic of loneliness and isolation. The country has endured periods of low national morale, such as in the 1970s when high inflation and the energy crisis worsened public sentiment following the Vietnam War. The current mood, however, feels different. Gallup recently reported that national mental health is at an all-time low, with few bright spots to lift spirits.
To better understand how Americans are feeling and their attitudes towards mental health in general, ThinkNow conducted a nationally representative quantitative survey of 1,500 respondents and found some interesting differences among ethnic, age and gender groups.
Technology
For example, 52% agree that technology and social media have a negative impact on mental health, but when broken out by race, 61% of Whites felt technology had a negative effect, and only 48% of Hispanics thought it did.
While technology has helped us keep in touch with friends and family in faraway places, it appears to have degraded our ability to connect in person. Staying connected online is a double-edged sword since the same news feed that brings us pictures of the grandkids and fluffy kittens also feeds us news about the wars in Israel and Ukraine, the dysfunction in Washington, the latest mass shooting and the climate crisis.
Hispanics may have a built-in defense against the isolation technology breeds, owing to their large, multigenerational households, strong social support systems, and tendency to use social media to stay connected with relatives abroad.
Age and Gender
When asked how individuals rate their mental health, men rate it higher than women by 11 percentage points, and Baby Boomers rank it highest at 83%, saying it’s good or excellent vs. 57% of Gen Z saying the same.
Gen Z spends the most amount of time on social media, so the notion that social media negatively affects mental health appears to be correlated. Unfortunately, Gen Z is also the generation that’s least comfortable discussing mental health concerns with healthcare professionals. Only 40% of them state they’re comfortable discussing their issues with a professional compared to 60% of Millennials and 65% of Boomers.
Race Affects Attitudes
As seen in previous research conducted by ThinkNow, Asian Americans lag other groups when it comes to awareness of mental health issues. Twenty-four percent of Asian Americans believe that having a mental health issue is a sign of weakness compared to the 16% average for all groups. Asians are also considerably less likely to be aware of mental health services in their communities (42% vs. 55%) and most likely to seek out information on social media (51% vs. 35%).
AI Trends in Creative Operations 2024 by Artwork Flow.pdfmarketingartwork
This article is all about what AI trends will emerge in the field of creative operations in 2024. All the marketers and brand builders should be aware of these trends for their further use and save themselves some time!
A report by thenetworkone and Kurio.
The contributing experts and agencies are (in an alphabetical order): Sylwia Rytel, Social Media Supervisor, 180heartbeats + JUNG v MATT (PL), Sharlene Jenner, Vice President - Director of Engagement Strategy, Abelson Taylor (USA), Alex Casanovas, Digital Director, Atrevia (ES), Dora Beilin, Senior Social Strategist, Barrett Hoffher (USA), Min Seo, Campaign Director, Brand New Agency (KR), Deshé M. Gully, Associate Strategist, Day One Agency (USA), Francesca Trevisan, Strategist, Different (IT), Trevor Crossman, CX and Digital Transformation Director; Olivia Hussey, Strategic Planner; Simi Srinarula, Social Media Manager, The Hallway (AUS), James Hebbert, Managing Director, Hylink (CN / UK), Mundy Álvarez, Planning Director; Pedro Rojas, Social Media Manager; Pancho González, CCO, Inbrax (CH), Oana Oprea, Head of Digital Planning, Jam Session Agency (RO), Amy Bottrill, Social Account Director, Launch (UK), Gaby Arriaga, Founder, Leonardo1452 (MX), Shantesh S Row, Creative Director, Liwa (UAE), Rajesh Mehta, Chief Strategy Officer; Dhruv Gaur, Digital Planning Lead; Leonie Mergulhao, Account Supervisor - Social Media & PR, Medulla (IN), Aurelija Plioplytė, Head of Digital & Social, Not Perfect (LI), Daiana Khaidargaliyeva, Account Manager, Osaka Labs (UK / USA), Stefanie Söhnchen, Vice President Digital, PIABO Communications (DE), Elisabeth Winiartati, Managing Consultant, Head of Global Integrated Communications; Lydia Aprina, Account Manager, Integrated Marketing and Communications; Nita Prabowo, Account Manager, Integrated Marketing and Communications; Okhi, Web Developer, PNTR Group (ID), Kei Obusan, Insights Director; Daffi Ranandi, Insights Manager, Radarr (SG), Gautam Reghunath, Co-founder & CEO, Talented (IN), Donagh Humphreys, Head of Social and Digital Innovation, THINKHOUSE (IRE), Sarah Yim, Strategy Director, Zulu Alpha Kilo (CA).
Trends In Paid Search: Navigating The Digital Landscape In 2024Search Engine Journal
The search marketing landscape is evolving rapidly with new technologies, and professionals, like you, rely on innovative paid search strategies to meet changing demands.
It’s important that you’re ready to implement new strategies in 2024.
Check this out and learn the top trends in paid search advertising that are expected to gain traction, so you can drive higher ROI more efficiently in 2024.
You’ll learn:
- The latest trends in AI and automation, and what this means for an evolving paid search ecosystem.
- New developments in privacy and data regulation.
- Emerging ad formats that are expected to make an impact next year.
Watch Sreekant Lanka from iQuanti and Irina Klein from OneMain Financial as they dive into the future of paid search and explore the trends, strategies, and technologies that will shape the search marketing landscape.
If you’re looking to assess your paid search strategy and design an industry-aligned plan for 2024, then this webinar is for you.
5 Public speaking tips from TED - Visualized summarySpeakerHub
From their humble beginnings in 1984, TED has grown into the world’s most powerful amplifier for speakers and thought-leaders to share their ideas. They have over 2,400 filmed talks (not including the 30,000+ TEDx videos) freely available online, and have hosted over 17,500 events around the world.
With over one billion views in a year, it’s no wonder that so many speakers are looking to TED for ideas on how to share their message more effectively.
The article “5 Public-Speaking Tips TED Gives Its Speakers”, by Carmine Gallo for Forbes, gives speakers five practical ways to connect with their audience, and effectively share their ideas on stage.
Whether you are gearing up to get on a TED stage yourself, or just want to master the skills that so many of their speakers possess, these tips and quotes from Chris Anderson, the TED Talks Curator, will encourage you to make the most impactful impression on your audience.
See the full article and more summaries like this on SpeakerHub here: https://speakerhub.com/blog/5-presentation-tips-ted-gives-its-speakers
See the original article on Forbes here:
http://www.forbes.com/forbes/welcome/?toURL=http://www.forbes.com/sites/carminegallo/2016/05/06/5-public-speaking-tips-ted-gives-its-speakers/&refURL=&referrer=#5c07a8221d9b
ChatGPT and the Future of Work - Clark Boyd Clark Boyd
Everyone is in agreement that ChatGPT (and other generative AI tools) will shape the future of work. Yet there is little consensus on exactly how, when, and to what extent this technology will change our world.
Businesses that extract maximum value from ChatGPT will use it as a collaborative tool for everything from brainstorming to technical maintenance.
For individuals, now is the time to pinpoint the skills the future professional will need to thrive in the AI age.
Check out this presentation to understand what ChatGPT is, how it will shape the future of work, and how you can prepare to take advantage.
A brief introduction to DataScience with explaining of the concepts, algorithms, machine learning, supervised and unsupervised learning, clustering, statistics, data preprocessing, real-world applications etc.
It's part of a Data Science Corner Campaign where I will be discussing the fundamentals of DataScience, AIML, Statistics etc.
Time Management & Productivity - Best PracticesVit Horky
Here's my presentation on by proven best practices how to manage your work time effectively and how to improve your productivity. It includes practical tips and how to use tools such as Slack, Google Apps, Hubspot, Google Calendar, Gmail and others.
The six step guide to practical project managementMindGenius
The six step guide to practical project management
If you think managing projects is too difficult, think again.
We’ve stripped back project management processes to the
basics – to make it quicker and easier, without sacrificing
the vital ingredients for success.
“If you’re looking for some real-world guidance, then The Six Step Guide to Practical Project Management will help.”
Dr Andrew Makar, Tactical Project Management
2024 State of Marketing Report – by HubspotMarius Sescu
https://www.hubspot.com/state-of-marketing
· Scaling relationships and proving ROI
· Social media is the place for search, sales, and service
· Authentic influencer partnerships fuel brand growth
· The strongest connections happen via call, click, chat, and camera.
· Time saved with AI leads to more creative work
· Seeking: A single source of truth
· TLDR; Get on social, try AI, and align your systems.
· More human marketing, powered by robots
ChatGPT is a revolutionary addition to the world since its introduction in 2022. A big shift in the sector of information gathering and processing happened because of this chatbot. What is the story of ChatGPT? How is the bot responding to prompts and generating contents? Swipe through these slides prepared by Expeed Software, a web development company regarding the development and technical intricacies of ChatGPT!
Product Design Trends in 2024 | Teenage EngineeringsPixeldarts
The realm of product design is a constantly changing environment where technology and style intersect. Every year introduces fresh challenges and exciting trends that mold the future of this captivating art form. In this piece, we delve into the significant trends set to influence the look and functionality of product design in the year 2024.
How Race, Age and Gender Shape Attitudes Towards Mental HealthThinkNow
Mental health has been in the news quite a bit lately. Dozens of U.S. states are currently suing Meta for contributing to the youth mental health crisis by inserting addictive features into their products, while the U.S. Surgeon General is touring the nation to bring awareness to the growing epidemic of loneliness and isolation. The country has endured periods of low national morale, such as in the 1970s when high inflation and the energy crisis worsened public sentiment following the Vietnam War. The current mood, however, feels different. Gallup recently reported that national mental health is at an all-time low, with few bright spots to lift spirits.
To better understand how Americans are feeling and their attitudes towards mental health in general, ThinkNow conducted a nationally representative quantitative survey of 1,500 respondents and found some interesting differences among ethnic, age and gender groups.
Technology
For example, 52% agree that technology and social media have a negative impact on mental health, but when broken out by race, 61% of Whites felt technology had a negative effect, and only 48% of Hispanics thought it did.
While technology has helped us keep in touch with friends and family in faraway places, it appears to have degraded our ability to connect in person. Staying connected online is a double-edged sword since the same news feed that brings us pictures of the grandkids and fluffy kittens also feeds us news about the wars in Israel and Ukraine, the dysfunction in Washington, the latest mass shooting and the climate crisis.
Hispanics may have a built-in defense against the isolation technology breeds, owing to their large, multigenerational households, strong social support systems, and tendency to use social media to stay connected with relatives abroad.
Age and Gender
When asked how individuals rate their mental health, men rate it higher than women by 11 percentage points, and Baby Boomers rank it highest at 83%, saying it’s good or excellent vs. 57% of Gen Z saying the same.
Gen Z spends the most amount of time on social media, so the notion that social media negatively affects mental health appears to be correlated. Unfortunately, Gen Z is also the generation that’s least comfortable discussing mental health concerns with healthcare professionals. Only 40% of them state they’re comfortable discussing their issues with a professional compared to 60% of Millennials and 65% of Boomers.
Race Affects Attitudes
As seen in previous research conducted by ThinkNow, Asian Americans lag other groups when it comes to awareness of mental health issues. Twenty-four percent of Asian Americans believe that having a mental health issue is a sign of weakness compared to the 16% average for all groups. Asians are also considerably less likely to be aware of mental health services in their communities (42% vs. 55%) and most likely to seek out information on social media (51% vs. 35%).
AI Trends in Creative Operations 2024 by Artwork Flow.pdfmarketingartwork
This article is all about what AI trends will emerge in the field of creative operations in 2024. All the marketers and brand builders should be aware of these trends for their further use and save themselves some time!
A report by thenetworkone and Kurio.
The contributing experts and agencies are (in an alphabetical order): Sylwia Rytel, Social Media Supervisor, 180heartbeats + JUNG v MATT (PL), Sharlene Jenner, Vice President - Director of Engagement Strategy, Abelson Taylor (USA), Alex Casanovas, Digital Director, Atrevia (ES), Dora Beilin, Senior Social Strategist, Barrett Hoffher (USA), Min Seo, Campaign Director, Brand New Agency (KR), Deshé M. Gully, Associate Strategist, Day One Agency (USA), Francesca Trevisan, Strategist, Different (IT), Trevor Crossman, CX and Digital Transformation Director; Olivia Hussey, Strategic Planner; Simi Srinarula, Social Media Manager, The Hallway (AUS), James Hebbert, Managing Director, Hylink (CN / UK), Mundy Álvarez, Planning Director; Pedro Rojas, Social Media Manager; Pancho González, CCO, Inbrax (CH), Oana Oprea, Head of Digital Planning, Jam Session Agency (RO), Amy Bottrill, Social Account Director, Launch (UK), Gaby Arriaga, Founder, Leonardo1452 (MX), Shantesh S Row, Creative Director, Liwa (UAE), Rajesh Mehta, Chief Strategy Officer; Dhruv Gaur, Digital Planning Lead; Leonie Mergulhao, Account Supervisor - Social Media & PR, Medulla (IN), Aurelija Plioplytė, Head of Digital & Social, Not Perfect (LI), Daiana Khaidargaliyeva, Account Manager, Osaka Labs (UK / USA), Stefanie Söhnchen, Vice President Digital, PIABO Communications (DE), Elisabeth Winiartati, Managing Consultant, Head of Global Integrated Communications; Lydia Aprina, Account Manager, Integrated Marketing and Communications; Nita Prabowo, Account Manager, Integrated Marketing and Communications; Okhi, Web Developer, PNTR Group (ID), Kei Obusan, Insights Director; Daffi Ranandi, Insights Manager, Radarr (SG), Gautam Reghunath, Co-founder & CEO, Talented (IN), Donagh Humphreys, Head of Social and Digital Innovation, THINKHOUSE (IRE), Sarah Yim, Strategy Director, Zulu Alpha Kilo (CA).
Trends In Paid Search: Navigating The Digital Landscape In 2024Search Engine Journal
The search marketing landscape is evolving rapidly with new technologies, and professionals, like you, rely on innovative paid search strategies to meet changing demands.
It’s important that you’re ready to implement new strategies in 2024.
Check this out and learn the top trends in paid search advertising that are expected to gain traction, so you can drive higher ROI more efficiently in 2024.
You’ll learn:
- The latest trends in AI and automation, and what this means for an evolving paid search ecosystem.
- New developments in privacy and data regulation.
- Emerging ad formats that are expected to make an impact next year.
Watch Sreekant Lanka from iQuanti and Irina Klein from OneMain Financial as they dive into the future of paid search and explore the trends, strategies, and technologies that will shape the search marketing landscape.
If you’re looking to assess your paid search strategy and design an industry-aligned plan for 2024, then this webinar is for you.
5 Public speaking tips from TED - Visualized summarySpeakerHub
From their humble beginnings in 1984, TED has grown into the world’s most powerful amplifier for speakers and thought-leaders to share their ideas. They have over 2,400 filmed talks (not including the 30,000+ TEDx videos) freely available online, and have hosted over 17,500 events around the world.
With over one billion views in a year, it’s no wonder that so many speakers are looking to TED for ideas on how to share their message more effectively.
The article “5 Public-Speaking Tips TED Gives Its Speakers”, by Carmine Gallo for Forbes, gives speakers five practical ways to connect with their audience, and effectively share their ideas on stage.
Whether you are gearing up to get on a TED stage yourself, or just want to master the skills that so many of their speakers possess, these tips and quotes from Chris Anderson, the TED Talks Curator, will encourage you to make the most impactful impression on your audience.
See the full article and more summaries like this on SpeakerHub here: https://speakerhub.com/blog/5-presentation-tips-ted-gives-its-speakers
See the original article on Forbes here:
http://www.forbes.com/forbes/welcome/?toURL=http://www.forbes.com/sites/carminegallo/2016/05/06/5-public-speaking-tips-ted-gives-its-speakers/&refURL=&referrer=#5c07a8221d9b
ChatGPT and the Future of Work - Clark Boyd Clark Boyd
Everyone is in agreement that ChatGPT (and other generative AI tools) will shape the future of work. Yet there is little consensus on exactly how, when, and to what extent this technology will change our world.
Businesses that extract maximum value from ChatGPT will use it as a collaborative tool for everything from brainstorming to technical maintenance.
For individuals, now is the time to pinpoint the skills the future professional will need to thrive in the AI age.
Check out this presentation to understand what ChatGPT is, how it will shape the future of work, and how you can prepare to take advantage.
A brief introduction to DataScience with explaining of the concepts, algorithms, machine learning, supervised and unsupervised learning, clustering, statistics, data preprocessing, real-world applications etc.
It's part of a Data Science Corner Campaign where I will be discussing the fundamentals of DataScience, AIML, Statistics etc.
Time Management & Productivity - Best PracticesVit Horky
Here's my presentation on by proven best practices how to manage your work time effectively and how to improve your productivity. It includes practical tips and how to use tools such as Slack, Google Apps, Hubspot, Google Calendar, Gmail and others.
The six step guide to practical project managementMindGenius
The six step guide to practical project management
If you think managing projects is too difficult, think again.
We’ve stripped back project management processes to the
basics – to make it quicker and easier, without sacrificing
the vital ingredients for success.
“If you’re looking for some real-world guidance, then The Six Step Guide to Practical Project Management will help.”
Dr Andrew Makar, Tactical Project Management
Beginners Guide to TikTok for Search - Rachel Pearson - We are Tilt __ Bright...
Presentacion de sistema
1. Modelo Entidad-Relación (MER)
Ejercicio.-
M.E.R: Un diagrama o modelo entidad-relación es una
herramienta para el modelado de datos de un sistema de
información. Estos modelos expresan entidades relevantes
para un sistema de información así como sus interrelaciones
y propiedades.
Sistema de Información. Ing. Alejandra Colina (modificado por Lcdo. Obmaro García)
2. NOTA C IÓN DE L Modelo E -R
E l modelo de datos entidad-relación es tá bas ado en una
percepción del mundo real que cons ta de una colección de objetos
bás icos , llamados entidades , y de relaciones entre es os objetos .
E ntidad:
Repres enta una “ cos a” u " objeto" del mundo real con exis tencia
independiente, es decir, s e diferencia unívocamente de cualquier
otro objeto o cos a, inclus o s iendo del mis mo tipo, o una mis ma
entidad.
A lgunos E jemplos :
Una pers ona. (S e diferencia de cualquier otra pers ona, inclus o
s iendo gemelos ).
Un automóvil. (A unque s ean de la mis ma marca, el mis mo
modelo,..., tendrán atributos diferentes , por ejemplo, el número de
bas tidor).
Una cas a (A unque s ea exactamente igual a otra, aún s e
diferenciará en s u dirección).
.
Sistema de Información. Ing. Alejandra Colina (modificado por Lcdo. Obmaro García)
3. NOTA C IÓN DE L Modelo E -R
A tributos :
Los atributos s on las caracterís ticas que definen o identifican a una entidad. E s tas
pueden s er muchas , y el dis eñador s olo utiliza o implementa las que cons idere más
relevantes . Los atributos s on las propiedades que des criben a cada entidad en un
conjunto de entidades .
E n un conjunto de entidades , cada entidad tiene valores es pecíficos as ignados para
cada uno de s us atributos , de es ta forma, es pos ible s u identificación unívoca.
E jemplos :
A la colección de entidades « alumnos » , con el s iguiente conjunto de atributos en
común, (id, nombre, edad, s emes tre), pertenecen las entidades :
(1, S ofía, 38 años , 2)
(2, J os efa, 19 años , 5)
(3, C arlos , 20 años , 2).
Sistema de Información. Ing. Alejandra Colina (modificado por Lcdo. Obmaro García)
4. NOTA C IÓN DE L Modelo E -R
Relación:
Des cribe cierta dependencia entre entidades o permite la as ociación de las
mis mas .
E jemplo:
Dadas dos entidades " Habitación 502" y " Mark Henry J ons hon Mcfly B ogard" ,
es pos ible relacionar que la habitación 502 s e encuentra ocupada por el hués ped
de nombre Mark.
C orres pondencia de cardinalidades
Dado un conjunto de relac iones binarias y los conjuntos de entidades A y B , la
corres pondencia de cardinalidades puede s er:
Uno a Uno: Una entidad de A s e relaciona únicamente con una entidad en B y
vicevers a (ejemplo relación vehículo - matrícula: cada vehículo tiene una única matrícula, y
cada matrícula es tá as ociada a un único vehículo).
Uno a varios : Una entidad en A s e relac iona con cero o muchas entidades en B . Pero
una entidad en B s e relaciona con una única entidad en A (ejemplo vendedor - ventas ).
Varios a Uno: Una entidad en A s e relaciona exclus ivamente con una entidad en B .
Pero una entidad en B s e puede relacionar con 0 o muchas entidades en A (ejemplo
empleado-centro de trabajo).
Varios a Varios : Una entidad en A s e puede relacionar c on 0 o muchas entidades en B
Sistema de Información.ociaciones - Alejandra Colina (modificado por Lcdo.pueden García)
y vicevers a (ejemplo as Ing. ciudadanos , donde muchos ciudadanos Obmaro
5. E jemplo de un Modelo E -R
Sistema de Información. Ing. Alejandra Colina (modificado por Lcdo. Obmaro García)
6. Diagrama de Flujo de Datos
Ejercicios.-
Sistema de Información. Ing. Alejandra Colina (modificado por Lcdo. Obmaro García)
7. NOTA C IÓN DE L DFD
Proces os
Trans formac iones que s ufren los
datos realizadas por pers onas ,
proc edimientos o dis pos itivos .
Flujos de Datos
Repres entan la manera en que los
datos cambian c onforme pas an a
traves del s is tema.
Sistema de Información. Ing. Alejandra Colina (modificado por Lcdo. Obmaro García)
8. NOTA C IÓN DE L DFD
A lmacenamiento de Datos
Medio lógic o res ervorio de los datos
que c irc ulan a traves del s is tema
E ntidades externas
S on entes que alimentan al s is tema
c on informac ión útil al proc es o .
Sistema de Información. Ing. Alejandra Colina (modificado por Lcdo. Obmaro García)
9. Pas os para elaborar un DFD
Identificación de las entidades
externas
Identificación de los flujos de entrada
Identificación de los flujos de s alida
Identificación de los medios lógicos
de almacenamiento.
Sistema de Información.
Ing. Alejandra Colina (modificado por Lcdo. Obmaro García)
10. Pas os para elaborar un DFD
A s ignación de nombres s ignificativos a
todos los elementos del diagrama
E laboración de un Diagrama de Flujo de
Datos borrador.
E valuación, revis ión y reorganización del
Diagrama de Flujo de Datos .
Repetición del Diagrama de Flujo de Datos .
Sistema de Información. Ing. Alejandra Colina (modificado por Lcdo. Obmaro García)
11. E J E MPLO DE DFD
S e des ea modelar el s is tema de
informac ión para el control de ins c ripc ión
de los participantes al C ongres o
B inac ional de E ducac ión Mención
Informátic a a realizars e en la c iudad de
C oro, utilizando la téc nic a de los
diagramas de flujo de datos . Obtener
diagrama de c ontexto y diagrama de nivel
1.-
Sistema de Información. Ing. Alejandra Colina (modificado por Lcdo. Obmaro García)
12. E J E MPLO
E ntidades E xternas : Los us uarios
Flujos de entrada: Petic ión de
ins c ripc ión
Flujos de S alida: Planilla de
ins c ripc ión
Medios de almacenamiento: A rc hivo
Programa, c onferenc ias e ins criptos .
E laborar DFD borrados :
Sistema de Información. Ing. Alejandra Colina (modificado por Lcdo. Obmaro García)
13. NIVE L DE C ONTE XTO
SOLICITUD_INSCRIPCION
0
USUARIO SISTEMA DE
GESTION DE
INSCRIPCION
INSCRIPCION
DE CONGRESO
Sistema de Información. Ing. Alejandra Colina (modificado por Lcdo. Obmaro García)
14. NIVE L O
2 INSCRIPCION
PONENTE
SOL_INSCRIPCION_PONENTE REALIZAR
INSCRIPCION
PONENTE
1
SELECCIONAR
TIPO
SOL_INSCRIPCION_ASISTENTE
INSCRIPCION
SOLICITUD_INSCRIPCION
3
INSCRIPCION
ASISTENTE
REALIZAR
INSCRIPCION
ASISTENTE
Sistema de Información. Ing. Alejandra Colina (modificado por Lcdo. Obmaro García)
15. NIVE L 1
SOL_INSCRIPCION_PONENTE
1
SOLICITUD_INSCRIPCION
SELECCIONAR
TIPO
INSCRIPCION
SOL_INSCRIPCION_ASISTENTE
Sistema de Información. Ing. Alejandra Colina (modificado por Lcdo. Obmaro García)
16. NIVE L 1
SOL_INSCRIPCION_ 2.1 SOL_INSCRIPCION_ 2.2
PONENTE PONENTE PROCESAD
INSCRIPCION
VALIDAR PREPARAR
PONENCIA_VAL PONENTE
RES_PONENCIA PONENCIA INSCRIPCION PROCESADA
PONENTE
DATOS PONENCIA VAL
DATOS PROGRAMA
A1 PROGRAMA-CONFERENCIA
Sistema de Información. Ing. Alejandra Colina (modificado por Lcdo. Obmaro García)
17. NIVE L 1
3.2 INSCRIPCION
SOL_INSCRIPCION_
ASISTENTE INSTITUCION
SOL_INSCRIPCION_INSTITUCION GESTIONAR
INSCRIPCION
INSTITUCION
3.1
SELECCIONAR
TIPO
ASISTENTE
3.3
INSCRIPCION
SOL_INSCRIPCION_ESTUDIANTE ESTUDIANTE
GESTIONAR
INSCRIPCION
ESTUDIANTE
Sistema de Información. Ing. Alejandra Colina (modificado por Lcdo. Obmaro García)