sequence diagrams

This time, we'll dig in a little deeper, with a look at the two forms of sequence diagrams specified by the UML.

On visualized static Java method sequence diagrams, you can now drill down on methods to produce new diagrams, as shown in Figure 12.

Transactions are very easy to identify in sequence diagrams.

Architecturally significant use cases are often used to create sequence diagrams through component interfaces.

To understand how the code implements a method, generate sequence diagrams.

Sequence diagrams are used to specify the interactions between classes on the borders of these subsystems.

You can monitor classes or instances by using sequence diagrams to see the behavior of the running executable target.

Instance sequence diagrams are best for modeling individual scenarios during the analysis phases of the software development life cycle.

Application of UML stereotypes and notes to sequence diagrams increases the communication value of your models .

JSP calls - The calls to JSP(s) in a use case are shown in the sequence diagrams.

If you're modeling a use case scenario, your sequence diagrams will generally represent an interaction with an external entity.

It would mature over time, with the help of screen mockups, collaboration and sequence diagrams, and further analysis details.

Much like the class diagram, developers typically think sequence diagrams were meant exclusively for them.

There are several ways that you can improve the quality and effectiveness of your UML sequence diagrams.

UML supports several diagrams, including use case diagrams, package diagrams, sequence diagrams, and activity diagrams.

Our initial sequence diagrams (developed in previous installments of the UML workbook) included known actors.

In micro design, the class diagrams and sequence diagrams are designed and modeled for each of the components in the component model.

My style is not to indicate the return values when it's obvious what is being returned, so I don't clutter my sequence diagrams.

Another key insight that the working group had during the development of the sample application had to do with the sequence diagrams.

Sequence diagrams are a mainstay in the overall process of moving your model driven development process from design to analysis.

I prefer not to indicate return values on sequence diagrams to simplify the diagrams whenever possible.

A Recursion is a type of Message used in Sequence diagrams to indicate a recursive function.

Interface driver, constraint, and timing rules, modeled using interaction or sequence diagrams.

These diagrams are, for the most part, UML sequence diagrams, as shown in Figure 2.

Sequence diagrams realize the use cases by describing the flow of events in the use cases when they are executed.

Sequence diagrams provide information on interactions between objects in the sequential order that the interactions occur.

Also, UML collaborations or sequence diagrams support the modeling of service collaborations.

While drawing the sequence diagrams, you'll identify specific operations and assign them to specific objects within your design.

Sequence diagrams are structured representations of behavior as a series of sequential steps over time.

We've partially worked through sequence diagrams in conjunction with use case modeling in the two previous columns.

A UML model includes several views, including class, component, use case, activity, and sequence diagrams.

An organization's technical staff can find sequence diagrams useful in documenting how a future system should behave.

Interactions in UML 1 were represented either as sequenced message annotations on collaboration diagrams, or as separate sequence diagrams.

As the example above shows, generic sequence diagrams -- and in fact all UML diagrams -- closely map the Java language syntax.

These business scenarios are also expressed in UML collaboration and sequence diagrams.

Base on sequence diagrams, this paper proposed an approach for object-oriented testing at class and cluster-levels.

Design and share multiple diagram types, including use case, activity and sequence diagrams.

Wait until you begin to detail the use-case flows and scenarios and capture them in the OV-6c sequence diagrams (see below).

With the introduction of sequence fragments, sequence diagrams are much better.

These enhancements have made sequence diagrams much easier to edit.

Even if you are not using Rational Harmony, the sequence diagrams can be reused as test cases.

The example messages in Figure 5 show synchronous messages; however, in sequence diagrams you can model asynchronous messages, too.

Example behavior diagrams are activity, use case, and sequence diagrams.

Sequence diagrams are excellent for documenting method logic.

Existing sequence diagrams can be reused as test cases.

Sequence diagrams are used to model the logic of usage scenarios.

Don't assign operations to classes without exploring use cases and sequence diagrams.

Simply put, instance names in sequence diagrams are underlined; roles names are not.

The UCD team initially did the sequence diagrams with respect to the object diagrams.

Figure 11 shows a sequence diagram that references the sequence diagrams "Balance Lookup" and "Debit Account. "

Ultimately, sequence diagrams are maps of interaction.

The paper presents an approach to generate test cases from UML sequence diagrams.

For more information on sequence diagrams, you can consult the help files or RUP documentation (see Resources).

The sections that follow provide solutions to each problem and demonstrate how to produce meaningful class and sequence diagrams.

For our example application, we'll be using sequence diagrams to model a single use case scenario.

In addition, you can produce sequence diagrams, collaboration diagrams, and class diagrams from use cases.

When that occurs, use cases are often refined into one or more sequence diagrams.

It is then possible to test the specification with sequence diagrams, flowcharts, statecharts, or code-based tests.

Then an object model and sequence diagrams were created for each system.

In addition, it lets you depict typical or what if interactions between . NET classes in Sequence diagrams.

Sequence diagrams are a clear winner here because they explicitly support asynchronous messages.

During design, you probably need to add system and persistence classes, which I usually put on the right-most side of sequence diagrams.

In high-level, abstract sequence diagrams you might not want to specify the condition of the option.

This arguably points to the need to always model return values in your sequence diagrams.

You're actually building the static class model, even though you're drawing dynamic model (sequence) diagrams at the same time.

I prefer to layer the sequence diagrams from left to right.

Figure 4: UML sequence diagrams provide a simple, coherent way to represent systems.

Of course, you can create other UML diagrams, such as use case diagrams and sequence diagrams, to document your exchange.

Extended the time attributes of the Sequence diagrams, in order to describe the real-time system.

However, there is another way to pass information between sequence diagrams.

Because actors initiate and take an active part in usage scenarios, they are also included in sequence diagrams.

Nature of the problems with class and sequence diagrams

Sequence diagrams (or collaboration diagrams) in the UML are used to model interaction between objects

Simplify sequence diagrams using subsystems (optional)

Synthesizing UML statechart diagrams from sequence diagrams

A New Prototype Automatization Method Which Bases on the System Sequence Diagrams

PVS-based consistency checking for UML class diagrams and sequence diagrams

Approach of statechart synthesis from UML sequence diagrams

Generate an initial state chart from package sequence diagrams

A Tool for Analyzing UML Sequence Diagrams with Timing Constraints

Applying stereotypes and notes in UML sequence diagrams

An Approach to Generate Scenario Test Cases Based on UML Sequence Diagrams