In software and systems engineering, a use case is a list of steps, typically defining interactions between a role and a system. From Wikipedia: http://en.wikipedia.org/wiki/Use_case

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Software functionality mapping format [on hold]

What is the common format for mapping all functionality of a software system? I'm aware of facade use cases, but there's a lot of space for actors but not many for actual use cases, e.g. how do you ...
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43 views

How should I generate controller classes based on my domain model classes? [on hold]

I know to draw a UML use case diagram and class diagram for a problem domain. As I have UI and database, I can think of classes for View (for example Forms in Visual C#) and connection to the ...
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2answers
60 views

Forming heavy use case diagram

We have a use case diagram for our software engineering course project that we have many use cases in every system and about 5-6 actors. How should we separate this heavy diagram to light weight ...
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51 views

Notifications in Use-case Diagrams

I'm writing a use-case diagram in which an actor gets a notification. My question is similar to this one except that I'm not sure if my notification use-case is a crosscutting concern. Suppose my ...
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How can I make my CASE statements more efficient and shorten the amount of code [migrated]

I'm taking part in this Daily Challenge on http://www.reddit.com/r/dailyprogrammer/comments/29zut0/772014_challenge_170_easy_blackjack_checker/ Basically, you have to develop a program that runs two ...
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1answer
32 views

Include system timer in use case diagram

Here in my use case diagram, an sms will be sent to a referenced person by the applicant automatically by the system when an applicant fills up and submits a form. Here as the SMS sending is ...
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1answer
39 views

When should I use a precondition and when to include another use-case to provide those conditions?

For example, suppose 'Borrwoing a book' a use case: I can figure out two description for it: Description one: Precondition: The member to access this use-case should be already logged in. OR EVEN ...
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113 views

Use Case Diagram. Can a system be its own actor?

Hello I got the definition below for an actor. That means the system cannot be an actor to itself. I was wondering what if the system is supposed to display certain elements on a screeen. In that case ...
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166 views

In what case a use case should be written

I am trying to figure out some questions to help me decide whether a use case should be written for that requirement or not. Is it neccesesary to have a use case for each requirement? E.g I have ...
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1answer
110 views

When, if ever, should I draw the use-case diagram of the existing system?

When I want to design a software I usually think about the use-cases of my software, but I have heard some sort of analyzing the existing (non-automated) system is required. To be specific, is ...
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80 views

Difference between the actors in the existing (non-automated) and the new (automated) system [closed]

I guess two main use-case diagrams in building an automated system (Software) from a non-automated system are: Analysis of the existing system by a use-case diagram. Mapping the current use-cases ...
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4answers
418 views

What exactly is a business rule? [duplicate]

I'm trying to better organize my application architecture, so I've been doing some reading, but I keep running into references to "Business Logic" and "Business Rules". I've never really understood ...
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1answer
75 views

Finding methods of classes from the use case

I know some nouns in the use case scenario are candidate to be class, for example member, customer, student .... I can find such entities and some attributes of them, but my problem is that I can't ...
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2answers
148 views

Use case diagram : distingishing the actor of a use case

I know a system contains a set of use case diagrams and not one use case diagram, but anyway in the first step to find the system requirements or to analyze them I have problem in distinguishing the ...
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1answer
180 views

Use case diagram, which behaviours should be included?

I teach OOD&A course to some students. When I want to draw a use case diagram or write the scenario of them for a system, I don't know should I include everything (behavior) which is done in the ...
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3answers
596 views

Extension in use case diagram: Library management example?

I have problem to understand the extension relation in the use case diagrams, sometimes some relations seem extension. For example in the library system, what is the relation between borrowing a ...
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1answer
153 views

Is this a specific pattern and what is its purpose? [closed]

I recently stumbled over the following C++ Code which confused me a bit: class One {/*definition*/}; template<class Base > class Two : public Base {/*definition*/}; template<class Base > ...
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2answers
78 views

More requirements in a single use case - correct?

I have been arguying with a developer who insists that 1 functional request (FR) == 1 use case (UC). I think that is nonsense as there are requirements often describing situations arising from the ...
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3answers
316 views

Sequence diagrams and the Implementation

In the design phase we create UML Sequence diagrams (in OOD). My understanding is that after creating an Use Case diagram if we need to show further information in terms of time sequence of events of ...
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2answers
108 views

Are the following Use Case Levels determined correctly?

I am confused about use case levels. All I could understand was that use cases that are contained in another use case fall under the level which is below the level of the container use case. I have ...
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1answer
34 views

How to measure the quality of my use cases?

When I'm coding something I know that there are many ways to see if my code is good or not. First is testing: I can do unit tests or even test the software by myself and see that it works or not. ...
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2answers
156 views

How to capture “Display advertisement” use case?

What kind of use case it would be for to "show ad in part of the view"? Who could be the actor to relate with? User or System? As user has no specific goal to see ads, i am wondering what is the best ...
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3answers
139 views

How to consider the login function collecting requirements of an application? is it a user requirement?

I am working on an application that expected to the user logs in when the application is started (as for example it is in Skype: the user open the application and appear to him a login mask when he ...
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1answer
106 views

Use cases sequentialy related, how to deal with this?

I'll express my doubt with an example. Suppose I have the following requirement: The customer needs a page in his website that displays all the products he has with a quantity field on the side ...
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3answers
971 views

How to create a use case diagram for board game played on PC

I'm struggling with a task as I was given to practice UML and use cases. The problem is that I should model computer version of a board game so I am unsure about a few things. obviously it does not ...
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1answer
93 views

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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334 views

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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133 views

How to deal with requirements and use cases in this kind of situation?

Recently I've started to work with object oriented analysis and design and it seemed very interesting to me as a way to get work done better. But I'm still in doubt with one kind of situation. If this ...
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2answers
808 views

Alternatives to Traditional Password Authentication [closed]

The third party login is excellent function that has come in recent years that relieves the load on a programmers mind so that I have to remember less useless passwords. I don't use the same ...
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1answer
124 views

How to model optional use cases in UML

Let's say, I want to model an application which allows users to model class diagrams. The high level use case can be modelled as UC1:Model Class Diagram, which refines itself into UC11: Model Class, ...
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1answer
54 views

Is where a link goes part of a view use case?

Say I got a minimal use case such as "view home page" or "view banner ad". Should it be included or exluded in the use case actually following the link? What I mean is that whether it belongs to the ...
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2answers
424 views

Use Case Diagrams - should I create a diagram just for a view business rule? [closed]

I'm modeling a UCD where I have two actors ( a content producer and a developer).. the content producer is going to create and specify details of a storyboard functionality, and the other actor ...
2
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1answer
504 views

Use case decomposition for class registration system

I am currently working on refactoring a summer camp registration system to include some new features and will also be using it as the basis for a new after-school class registration system. For this ...
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3answers
1k views

Should I create a use case diagram for each screen?

In projects with many use cases, it's valid to create different use case diagrams, one for each screen? Or I shouldn't guide myself on the GUI of the software to make this, why? As a clarification, ...
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902 views

How to show an “or includes” relationship - UML Use case diagram

I haven't come across this issue before and can't find it in my Schaum's Outline UML book and was wondering if someone here could help. I'm making a use case diagram for e-commerce, and in it I want ...
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4answers
2k views

Applications of heapsort

Heapsort is a sorting algorithm that has a time complexity of O(nlogn), and performs sorting using O(1) space complexity. However, I know that because it's unstable, it doesn't find many applications ...
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480 views

What can be used in lieu of use cases to gather requirements?

I'm a programmer currently working in rounds of meetings along with BAs and PM to gather/describe modules and functionality of our case management system; after a few meetings I saw that using 'use ...
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1answer
338 views

Use Cases with respect to downstream systems

Use cases are primarily meant for interaction between user and a system. It could be used for interaction between system and another system. The actors are primarily roles. It is easy to document ...
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When are RPC-ish approaches more appropriate than REST?

After watching this talk on REST, Reuse and Serendipity by Steve Vinoski, I wonder if there are business cases in greenfield projects for (XML-)RPC-ish setups, that REST could not solve in a better ...
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2answers
2k views

Describing requirements in SRS - use cases?

I do not have the access to the IEEE standard and information on the net are contradictory. Can I capture user requirements in SRS using use cases? Or I should keep use cases separate as they are more ...
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641 views

Behavior-Driven Development / Use case diagram

Regarding growing of Behavior-Driven Development imposing acceptance testing, are use cases diagram useful or do they lead to an "over-documentation"? Indeed, acceptance tests representing ...
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694 views

How to manage and estimate unstructured requirements received from customers

A lot of the times during the bidding phase of a project I receive a software system's requirements from our potential customers in a very unstructured format from various sources [email, word ...
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363 views

Is this usage of extend relationship in a use case diagram correct?

On this picture: Does updating grades extend a feature that shows grades? I am not sure if the notation is correct, so I am hoping you guys will know it.
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2k views

Is my use case diagram correct?

NOTE: I am self studying UML so I have nobody to verify my diagrams and hence I am posting here, so please bear with me. This is the problem I got from some PDF available on Google that simply had the ...
4
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1answer
572 views

Should the database of a web application be considered an actor?

I'm just learning about use-case analysis and use-case diagrams and am a little confused whether or not the MySQL database of a web app should be considered an actor. Is the databased considered ...
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6answers
1k views

Writing a killer use case for a cron job [closed]

I'm a beginner when it comes to writing use cases, but I searched a lot and most of the materials I found mentioned that I should concentrate on the business value to the customer when writing a use ...
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1answer
8k views

Are using <<include>> and <<extend>> relationship in this use-case diagram actually same?

I am trying to draw a UML use-case diagram to model requirements for a software project. The two requirements I have issue to model are: TravelAgent creates a booking for a [old] client who is ...
2
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3answers
347 views

How to model two similar tasks with the Use-case diagram

I am trying to draw a use-case diagram for a software project. Two requirements for the software I am trying to model in use-case diagram are: A customer (i.e. Client) should be able to cancel its ...
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1answer
455 views

What does “automating a use case” mean and what are the tools to do it?

What does 'automating a use case 'means and how does the tools that automate helps with that? whats makes automation good to do and does it holds any significance for web developement.
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320 views

What Use Cases are Appropriate for JScript.NET?

In this Stack Overflow question: http://stackoverflow.com/questions/9471332 I learned that Jscript is not dead after all. Yay! But what is JScript.NET good for? According to this article, you ...