Object-oriented design is the process of planning a system of interacting objects for the purpose of solving a software problem.
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How much time should be spent with use cases?
I'm starting to work with agile iterative approach to software development and this question seems quite natural. After gathering the requirements I should write a few use cases to describe how the ...
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3answers
69 views
Deciding how to model customer when it can be both natural and legal person
Suppose that we are developing some application that requires us to be able to manage customers and that those customers can be both natural and legal person. There are some different ways on which we ...
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2answers
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Is this a good use case?
I've been studying object oriented analysis and, so to get started with this in practice I've decided to first of all build my own management system to have my customers data and so on. Trying to ...
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4answers
315 views
How to figure out design pattern for this particular solution?
While working on a project I've come up with some design solution. I am having a hard time relating it to any general design pattern or analyzing this situation in details. This is also prohibiting me ...
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5answers
216 views
How to handle assumptions while designing any system?
I have been going through various system design examples to understand how we approach any system design question.
Here is what I have understood till now.
Know the system first and find out how it ...
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1answer
176 views
Is using protected inheritance to hide (but exploit) implemented interface from the public ok?
Recently, we had a discussion about code using protected inheritance in order to hide the fact (to client code) a class inherits from a specific base class but to exploit this fact in the ...
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136 views
Code design: is this specific case of monkeypatching in python acceptable?
I'm using python to do some research tasks. I have a class hierarchy for "tools", where each object is an instance of a particular tool. They all share some functionality and have many similarities in ...
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2answers
333 views
Does cohesion really reduce coupling?
'Cohesive classes reduce coupling'
So, if cohesive classes or connected classes reduce coupling (union), which piece of the puzzle is missing me?
BTW, I took this sentence from an article about ...
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448 views
How do you learn to take a more OO approach to problems? [duplicate]
I have been learning C# and am trying to tackle some common projects / works of my own to become even better. Currently I am working on understanding the Mars Rover Problem. I read the description and ...
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33 views
How to gather requirements and design the technology and presentation of the application?
I don't know if this has already been asked here, so sorry if that's the case. Well, my doubt is kind of simple: I've seem a Lynda.com course about Object Oriented Analysis and Design which is very ...
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3answers
69 views
Can certain expectations of behavior be part of an interface's contract?
Given the following code:
public interface IUserDataProvider {
ICollection<SomeClass> getSomeClassRecordsForUser(int idUser);
}
Is it possible to define (via documentation) an ...
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1answer
53 views
Where to put entity model classes in case of using a dataservice layer?
If my solution has both a "dataservice" project and a "business logic" project, where do the entity models, which represent database tables, belong?
At first i thought putting them in the ...
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2answers
176 views
Does increasing the number of classes increase code complexity? [duplicate]
To illustrate the question, let's say we have two programmers of comparable skill that both solve the same problem. The code they turn out has roughly the same lines of code, but one programmer uses 5 ...
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3answers
650 views
How to create better OO code in a relational database driven application where the database is poorly designed
I am writing a Java web application that consists mainly of a bunch of similar pages in which every page has several tables and a filter that applies to those tables. The data on these tables comes ...
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1answer
97 views
How should I implement “queueing” of approval on my objects?
I have a list of objects that will need to go through an approval process.
I am curious if it would be best to simply add some properties to my object, like ApprovedBy, and ApprovedOn.
Another ...
