PERT Chart EXPERT
Posted by Armando Brito Mendes | Filed under Investigação Operacional, planeamento
Bom software para alindar a discrição das tarefas
PERT Chart EXPERT is a Windows-based project management software application that is used to create PERT charts (also known as Network Charts, Precedence Diagrams and Logic Diagrams). A PERT chart displays the tasks in a project along with the dependencies between these tasks. Using a PERT chart is a great way to define and display the dependency relationships that exist between tasks. The order in which tasks occur is an important part of project planning and PERT Chart EXPERT simplifies the process of creating dependencies and displaying dependencies in an easy to follow diagram.
Tags: gestão de projetos
MS Solver Foundation
Posted by Armando Brito Mendes | Filed under Investigação Operacional, software
Bom software para otimização em Excel
Microsoft Solver Foundation
Solver Foundation makes it easier to build and solve real optimization models. Solver Foundation includes a declarative modeling language (OML) for specifying optimization models; a .NET API and runtime (Solver Foundation Services) for model creation, reporting, and analysis; and powerful built-in solvers. Key features include:
- Modeling and solving scenarios by using constraints, goals, and data.
- Programming in the Optimization Modeling Language (OML), in C# imperatively, in F# functionally, or in any .NET language.
- Built-in solvers for commonly encountered model types.
- Integration with popular solvers such as Gurobi, Ziena Knitro, Frontline Solver Platform SDK™, Mosek™, FICO™ Xpress, LINDO, and lp_solve.
- Interfaces to familiar tools such as Microsoft Office Excel and SharePoint to create and solve models.
Microsoft Solver Foundation is a .NET solution for mathematical optimization and modeling. Solver Foundation makes it easier to build and solve real-world optimization models by providing a .NET API and runtime for model creation, reporting, and analysis; a declarative language (OML) for model specification; and powerful built-in solvers.
Tags: otimização, programação em folha de cálculo
See effect of dependent risk by using a decision tree
Posted by Armando Brito Mendes | Filed under Investigação Operacional, materiais para profissionais, planeamento
Uso de cenários e árvores de decisão no cálculo de Risco
Takeaway: Certain risks may only appear as a result of actions taken as a result of managing another risk. Project management expert Tom Mochal says that is when you want to use a decision tree.
Tags: gestão de projetos
Time Management Reminders
Posted by Armando Brito Mendes | Filed under Investigação Operacional, materiais para profissionais, planeamento
Begin with the end in mind.
First things first.
Don’t just list priorities; schedule them
Schedule only two or three “big rocks.”
Chunk tasks together, like with like.
Tags: gestão de projetos
Learn About OR
Posted by Armando Brito Mendes | Filed under Investigação Operacional, materiais para profissionais
Explicação para professores e alunos sobre IO
In a nutshell, operational research (O.R.) is the discipline of applying advanced analytical methods to help make better decisions.
By using techniques such as problem structuring methods (sometimes known as ‘Soft O.R.’) and mathematical modelling to analyse complex situations, operational research gives executives the power to make more effective decisions and build more productive systems based on:
- More complete data
- Consideration of all available options
- Careful predictions of outcomes and estimates of risk
- The latest decision tools and techniques
Tags: intro IO
The Project Management Hut
Posted by Armando Brito Mendes | Filed under Investigação Operacional, planeamento
Excelente site sobre tudo o que se relaciona com gestão de projetos
PM Hut – The Project Management Hut, came to life when a group of Project Managers decided to make their vast experience accessible to everyone. Needless to say, they started writing articles and gathering articles from all over the world, categorizing these articles, and presenting them in a very digestible format for the dynamic Project Manager.
Today, PM Hut is considered to be the largest database of categorized Project Management articles on planet Earth. Apparently, a group of Project Managers working together were able to finish something; it seems that reading the “Conflict Management” articles on PM Hut managed to resolve our own conflicts!
Tags: gestão de projetos
Introduction to lp_solve
Posted by Armando Brito Mendes | Filed under Investigação Operacional, software
Um bom solver open source para Excel Solver Foundation
manual completo, escolher a versão no menu acima
link para download do software
Tags: Excel, otimização, programação em folha de cálculo
VideoLectures.Net
Posted by Armando Brito Mendes | Filed under estatística, Investigação Operacional, matemática, materiais ensino
montes de vídeos sobre imensos temas
VideoLectures.NET is a free and open access educational video lectures repository. The lectures are given by distinguished scholars and scientists at the most important and prominent events like conferences, summer schools, workshops and science promotional events from many fields of Science. All lectures, accompanying documents, information and links are systematically selected and classified through the editorial process taking into account also users’ comments.
Tags: data mining, grafos, inferência, inquéritos, intro IO, otimização, previsão, problemas
The Zero Saga
Posted by Armando Brito Mendes | Filed under Investigação Operacional, matemática
debate um erro comum em IO x/zero=infinito
- Introduction
- A Common Fallacy
- Dividing by Zero Can Get You into Trouble!
- A Sample of the Grown-ups’ Arguments Insisting on Dividing by Zero
- What About Taking the Limit?
- Educating the Educators
- Act of Dividing by Zero Is a Meaningless Operation: Forget Its Result
- Origin of the Common Fallacy: Dividing by Zero
- The Need for Numbers
- The Two Notions of Zero
- Is Zero Either Positive or Negative?
- Is Zero an Even or Odd Number?
- Zero is “not there”
- Is 1 a Number or Just a “Unit” for Counting?
- Origin of Infinity and its Symbol
- Other Apparent Difficulties with Zero
- Descartes’ Representations of Numbers
- Mathematics Is for Unification and Extensions
- Genealogy of Rational and Irrational Numbers
- The Two Numbers Nature Cares Most: Inventions or Discoveries
- Equation: Its Structure, Roots, and Solutions
- SQRT(4) = +2, and – 2 right? Misplacement of the Sign
- 1 = 2 right? Confusions between Continuous and Discrete Variables
- 1 = 5 right? Confusions between Numbers and Operations
- Recurring Fractions Are Rational Numbers: Confusions between Series and Their Limits
- IEEE Special Floating Point
- 0 = 1 right?
- From Finger Numbers to Computer: The Most Fascinating Journey
- Errant Views and Calculator-assisted Experiment
- Notes, Further Readings, and References
- A Collection of JavaScript E-labs Learning Objects
Europe Mirror Site Collection
Tags: definição, otimização
Linear Optimization with Applications
Posted by Armando Brito Mendes | Filed under Investigação Operacional, matemática, materiais ensino
Uma boa página sobre programação linear
- Introduction & Summary
- Optimization-Modeling Process
- Ingredients of Optimization Problems and Their Classification
- Linear Programming (LP)
- Dual Problem: Its Construction and Economics Implications
- Learning From the Optimal Strategy
- Goal-Seeking Problem
- Exercise Your Knowledge to Enhance What You Have Learned (PDF)
- Linear Optimization Solvers to Download (free-of-charge),
Tags: otimização, problemas
