End-to-End UML Case Study for a Stock Broker

 

uml case studies

Summary: This UML use case diagram example shows actor and use cases for a hospital's reception. Hospital Reception subsystem or module supports some of the many job duties of a hospital receptionist. Receptionist schedules patient's appointment and admission to the hospital, collects information from the patient by phone and/or upon patient's. Case Study UML - Free download as Word Doc .doc), PDF File .pdf), Text File .txt) or read online for free. This is a complete case study on UML focusing on Library Management system. This is a complete case study on UML focusing on Library Management system. Search Search. Close suggestions.5/5(1). This document describes UML versions up to UML and is based on the corresponding OMG™ Unified Modeling Language™ (OMG UML®) specifications. UML diagrams were created in Microsoft® Visio® using UML 2.x Visio Stencils. You can send your comments and suggestions to webmaster at [email protected]


Use Case case study – UML Modelling – Business Analysis Blog by Techcanvass


Mohsin Sheikh Ganesh Prakash Roll no. UML is a result of the evolution of object-oriented modeling languages. UML is used for modeling software systems; such modeling includes analysis and design, uml case studies. By an analysis the system is first described by a set of requirements, and then by identification of system parts on a high level. The design phase is tightly connected to the analysis phase, uml case studies. It starts from the identified system parts and continues with detailed specification of these parts and their interaction.

For the early phases of software projects UML provide support for identifying and specifying requirements as use cases. Class uml case studies or component diagrams can be used for identification of system parts on a high level.

During the design phase class diagrams, interaction diagrams, component diagrams and state chart diagrams can be used for comprehensive descriptions of the different parts in the system, uml case studies.

Modeling is an activity that has been carried out over the years in software development. When writing applications by using the simplest languages to the most powerful and complex languages, uml case studies, you still need to model.

Modeling can be as straightforward as drawing a flowchart listing the steps carried out by an application.

Defining a model makes it easier to break up a complex application or a huge system into simple, discrete pieces that can be individually studied. We can focus more easily on the smaller parts of a system and then understand the "big picture.

Readability brings clarity—ease of understanding. Understanding a system is the first step in either building or enhancing a system. This involves knowing what a system is made up of, how it behaves, and uml case studies forth. Modeling a system ensures that it becomes readable and, most importantly, easy to document. Depicting a system to make it readable involves capturing the structure of a system and the behavior of the system. Reusability is the byproduct of making a system readable.

After a system has been modeled to make it easy to understand, we tend to identify similarities or redundancy, be they in terms of functionality, features, uml case studies, or structure. Even though there are many techniques and uml case studies for modeling, in this article series, we will be concerning ourselves with modeling object-oriented systems and applications using the Unified Modeling Language.

This essentially means that UML provides the ability to capture the characteristics of a system by using notations. UML provides a wide array of simple, easy to understand notations for documenting systems based on the object-oriented design principles. These notations are called the nine diagrams of UML. UML does not have any dependencies with respect to any technologies or languages. This implies that we uml case studies use UML to model applications and systems based on either of the current hot technologies; for example, J2EE and.

Every effort has been made to keep UML as a clear and concise modeling language without being tied down to any technologies. The underlying premise of UML is that no one diagram can capture the different elements of a system in its entirety.

Hence, UML is made up of nine diagrams that can be used to model a system at different points of time in the software life cycle of a system. The nine UML diagrams are:. The primary elements are termed as "actors" and the processes are called "use cases.

The class diagram classifies the actors defined in the use case diagram into a set of interrelated classes. The relationship or association between the classes can be either an "is-a" or "has-a" relationship. Each class in the class diagram may be capable of providing certain functionalities. These functionalities provided by the class are termed "methods" of the class. Apart from this, each class may have certain "attributes" that uniquely identify the class.

An object is an instance of a class. This essentially means that an object represents the state of a class at a given point of time while the system is running. The object diagram captures the state of different classes in the system and their relationships or associations at a given point of time, uml case studies.

Objects in the system change states in response to events. In addition to this, a state diagram also captures the transition of the object's state from an initial state to a final state in response to events affecting the system. Similar to a state diagram, an activity diagram also consists of activities, actions, transitions, initial and final states, and guard conditions.

This means that the exact sequence of the interactions between the objects is represented step by step. Different objects in the sequence diagram interact with each other by passing "messages", uml case studies.

The interactions are listed as numbered interactions that help to trace the sequence of the interactions, uml case studies. The collaboration diagram helps to identify all the possible interactions that each object has with other objects.

This diagram depicts, at a high level, what components uml case studies part of the system and how they are interrelated. A component diagram depicts the components culled after the system has undergone the development or construction phase. This diagram is by far most useful when a system is built and ready to be deployed.

A software system can be said to have two distinct characteristics: a structural, "static" part and a behavioral, "dynamic" part. In addition to these two characteristics, an additional characteristic that a software system possesses is related to implementation. Before we categorize UML diagrams into each of these three characteristics, let us take a quick look at exactly what these characteristics are. The uml case studies characteristics uml case studies what parts the system is made up of.

Each of these views represents how a system can be modeled, uml case studies. This will enable us to understand where exactly the UML diagrams fit in and their applicability. This gives an idea of what a given system is made up of. Class diagrams and object diagrams form the design view of the system, uml case studies. The different diagrams such as the state diagram, uml case studies, activity diagram, sequence diagram, and collaboration diagram are used in this view.

Use case diagrams of UML are used to view a system from this perspective as a set of discrete activities or transactions. Because the primary use of a UML tool is to enable you to draw diagrams, first and foremost, we need to see what types of UML diagrams the tool supports.

Let us take a look at another scenario. Suppose you were given a large set of source code files with lots and lots of classes. Wouldn't it be a nightmare wading through the code trying to figure out how all the classes are interconnected? This is where UML tools step in to make things a lot easier by providing support for such features. Now, let's define these features in technical uml case studies. Because the structure of the system defined by the diagram is translated by a developer into actual source code classesthe UML tool should bridge this step by generating the source code of the classes with the methods stubbed out.

Developers can take up this stub code and fill in with the actual code. This characteristic of automating the generation of source code is called forward engineering.

Forward engineering support by a UML tool is normally for a specific language or a set uml case studies languages. If you are a Java developer, verify that the UML tool that you want to use has forward engineering support for Java. Reverse engineering is a feature normally provided uml case studies sophisticated and high-end UML tools, uml case studies. Forward and reverse engineering are essentially one-off activities that take input and generate the required output.

Round-trip engineering extends these features. An important rule in software design is that no design remains unchanged.

This is as true for small systems as it is for large systems. During development, the design structure defined in the UML model does undergo changes to incorporate physical differences in implementation that may not uml case studies been envisaged during design.

It becomes very difficult to keep the design of the system updated with the changes in the source code. The round-trip engineering feature enables the UML uml case studies to synchronize the model with the changes in the application code.

Software designing, by nature, is an abstract process. Apart from a few syntax and semantic ground rules, there are no other rules. The thought process of a software architect who designs applications using UML can be lost if the reasons behind certain design decisions are not captured and well documented, uml case studies.

This becomes painfully clear when large systems are maintained and no one has a clue to why a subsystem was designed in a certain way. Hence, a UML tool must necessarily provide some way for the designer to document design decisions in the diagrams by using simple things such uml case studies annotations or comments.

Apart from the above features, you should also identify a few features that would definitely be useful to have in the UML tool. Configuration management is an integral part in the building of software systems. Considering that the design of a system is a very important artifact of the software lifecycle, maintaining versions and baselines of the system design is a desirable feature to have in UML uml case studies. In the absence of direct support for version control, it is the responsibility of the designer to maintain versions of the design.

While designing complex systems, uml case studies, there may be different teams involved and may carry out design work on different subsystems in parallel.

This collaborative design effort needs to uml case studies properly synchronized by the UML tool. The UML tool should provide support for a collaborative modeling environment with capability to compare uml case studies versions designs for differences or even merge different versions of a design.

Collaborative modeling is always a nice feature to have in UML tools. Hence, it would be really useful if, in addition to generating stub code, uml case studies, the tool also generates test scripts that can be used for testing how the generated class functions.

Hence, if you design n-tier, Web-enabled enterprise applications, you should look for a UML tool that supports designing applications based on the MVC architecture. Support for MVC modeling makes it easier to organize and clearly distinguish the design elements along the lines of the MVC layers. This will help in the long run in improving the readability of the model. We will list here a few of the "movers and shakers" of vendors of UML tools, uml case studies. Please note that this list is by no means exhaustive and is not meant to provide any ranking for any UML tool.

It comes in different versions suited to different requirements.

 

Case Studies | BioManufacturing | UMass Lowell

 

uml case studies

 

View the complete E. Coli Fermentation Development case study (pdf) Analytical Development and Characterization A variety of state-of-the-art tools are used to characterize the recombinant protein GPIB-FC in order to understand the basis of aggregate formation. The problem with many Unified Modeling Language (UML) educational texts is that they present the various concepts each in isolation; so you see a use case diagram for one problem domain, a class diagram for an entirely different problem domain, and you never get to see the important traceability between the diagrams. In this case study we aim to put it right by working through a single problem. Case Study UML - Free download as Word Doc .doc), PDF File .pdf), Text File .txt) or read online for free. This is a complete case study on UML focusing on Library Management system. This is a complete case study on UML focusing on Library Management system. Search Search. Close suggestions.5/5(1).