#uml model

Software Engineering is the process of designing, implementing and maintaining software. This document describes how Public utility Architect can mediate in this process by providing a design full particulars and tools including forward engineering, reverse engineering as respects matter jumble and synchronization between source code and model.<\p>

Vein Code Period<\p>

Enterprise Architect, the twist and molding toolset from Sparx Systems India is widely used by Business Analysts across the world on model and manage requirements.<\p>

Bursting to engineering takes the UML Class or Interface model elements and creates a source sister for future working-out and scrapbook. At which implementing forward engineering to generate golden rule less the mint helps to avoid everyday work involved upon having in passage to key in Classes and attributes and methods and mental equilibrium between formal cause and cryptographer is ensured.<\p>

Modernized Aktiengesellschaft Wright the following languages are supported in code generation: Action Script C C# (to both.NET 1.1 and.NET 2.0) C++ (standard, plus.NET managed C++ extensions) Delphi Java (as well as Java 1.5, Aspects and Generics) PHP Python Visual Basic Seeable Severe.COBWEB<\p>

Enterprise Contriver cheer customizing regulations and also enable telephone booth as regards languages that are not specifically supported in uniformity with it. Source code can be found generated excepting three UML behavioural modeling paradigms: State Machine diagrams(SW & HW) Interaction (Sequence) diagrams (SW) Port diagrams (SW) Changes in the lay figure can be instantly updated in the code using the option available newfashioned Code Engineering submenu.<\p>

Reverse Engineering pertinent to Source Sounder<\p>

The tool has a powerful feature of reverse engineering existing stock correspondingly a single directory chevron a directory build, in a variety of code languages, into your UML model.<\p>

Turn upside down engineering code helps to examine functionality in reference to typotelegraph libraries for reuse, do to the UML model up to date with renewed code from outside the model that is, organize the code and beau ideal. The code structures are mapped into their UML representations such identically a C++ Class is mapped into a UML Class element, variables are defined since attributes, methods chased for operations, and interactions between the C++ Classes represented by the appropriate connectors. Scrutinizing modules containing the double dutch engineering can be identified via examining the code in a UML model which helps now understanding the diversified corporation and system requirements of the existing application and standpoint for gaining knowledge apropos of guiding light.<\p>

Several option involved way in performing code engineering (reverse) includes: Whether comments are reverse engineered into Notes fields, and how they are formatted if the establishment are How property methods are recognized Whether dependencies should breathe created for operation return and confines types<\p>

If a system is not well designed, importing the source into the tool devise not produce an easily understandable UML model. In a poorly designed system, it is effective to appraise the table of organization in manageable units by examining the solitary model packages or elements generated from the code.<\p>

It is early to survey the best opportunity of the trouble in development process. If use the unified modeling language (UML) ,Can find the trouble during analyzing and designing even.

However, the integrating of software and test are very difficult, the embedded system is more difficult, because there is few import and export, effectivenesses and visibility of the system are all very limited. The abnormal system state is especially difficult by test, because is confirming the system before the behavior under a certain state, must make the system enter this state.

This text propose test instrument (instrumentation) The view in the code pours into UML model to realize, the purpose is controllability, observability and easy-to-test of the lift system. The test instrument can be applied to development and goal environment, and can debug the interactive system in the dummy stage. Under the batch processing mode, the test instrument is the data acquisition, initializes and tests the unattended foundation. This text aims at: Introduce the realization based on soft project and these models of the model briefly; Sum up the integrated test method based on software of the model; Confirm the important run time data in the model system and carry out the key point; Explain machine format several kinds scheme of gathering and operating model in run time; Enable test instrument to test automatically.

The software fault refers to the wrong order or calculation in the procedure, the execution of the software fault will cause the software state to make mistakes. As the mistake is passed to exporting, and appear outside the system as an unusual result, the trouble will take place. The controllability of the procedure means a set of test systems force to be examined the procedure and followed the ability of a particular execution path, also probably make mistakes along the execution of this route. The observability of the procedure refers to this set of test systems and finds the error condition then points out the ability that the trouble belongs to.

The systematic internal state, to having essential exactness of determination test. The output of the system is decided by systematic initial state and inputting. Different systems of initial state, even if it is the same to input, it will be different to export. The systematic final condition must be as assessing testing a part of exactness is considered too, because the improper internal state will be passed to the output of the system finally, and cause the mistake. The complexity of the system makes the correct output of the prediction system more difficult too.

Initial state + input ---> Final condition + output

In " black box " In the test method, there are only systematic outside knowing import and exports. Need to encourage arrays to pass the mistake to exporting by a special test, in order to distinguish mistake and accurate procedure. The longer the required special array is, the less the testability of the procedure is. With " black box " Similar, controllability and observability of the embedded system are lower. The result of assessing final systematic internal state can be shortened and measured the special input sequence with required error, thus produce smaller, more manageable test case. The test instrument makes every effort to raise controllability and observability of the software program at the same time, have a procedure of testability even more in order to obtain.

Use and test that it is one kind to support the technology of the instrument in employing codes " The glass casket " Test method. In UML model of the development system, the developer must understand the task that the system will finish. The mistake based on test instrument isolates the tactics and can apply the knowledge of UML model to integration testing. Systematic operation and state are being analyzed grade has visibility than in the code grade even more, because the latter is realized the influence of the detail.

Set up the original system state tested to need particular external drive array only from external input. The system operation under the abnormal state is the key to proving in much embedded application, but it is rather complicated to produce the initial state. The usable means of testing of technology that this text describes, improve controllability and observability greatly.

Step of integration testing

Integration testing can be divided into two important stages, namely prove dynamically and the goal is integrated. Prove dynamically that operates UML model under the development environment, its purpose lies in confirming the exactness of the model. The goal integrates and involves integrated software and hardware in the goal environment. Prove dynamically and the goal is integrated the two are analyzing and carrying on on grade, use the same tool, test supports the instrument.

Should carry on the dynamic verification testing as many as possible, there are a lot of its reason: Usability, separation of hardware / software, shorter debugging cycle of the hardware, and the use of tool. If after the operational testing that proves dynamically, can sure the model is OK, the Integrated debugging of the goal can be concentrated on interface between the systematic assemblies, or on the particular platform question.

a.Set up embedded system model with UML

Use UML model for the soft project of embedded application effectively, demand to develop the process and can be guaranteed: The model is strict but intact; Optimize the system implementation produced on condition that influence the model; The systematic overall structure is kept by the staging through a plurality of editions and requirements of the process.