Architecture in Java

Encoder QR Code ISO/IEC18004 in Java Architecture
6 Architecture
Creating Quick Response Code In Java
Using Barcode generation for Java Control to generate, create QR Code ISO/IEC18004 image in Java applications.
What Is Software Architecture Why Architecture Key Concepts in Enterprise Application Architecture Approaches to Software Architecture Putting It All Together Summary
Bar Code Printer In Java
Using Barcode drawer for Java Control to generate, create bar code image in Java applications.
Software architecture is one of those terms that everyone claims to understand but no one can define precisely or at least, not precisely enough to satisfy everyone else
Decoding Bar Code In Java
Using Barcode recognizer for Java Control to read, scan read, scan image in Java applications.
This is partly because of the relatively short existence of the software profession itself and partly due to the newness of the concept of architecture in the context of software
Making QR Code JIS X 0510 In Visual C#
Using Barcode generator for Visual Studio .NET Control to generate, create QR Code JIS X 0510 image in Visual Studio .NET applications.
In this chapter, we take a closer look at software architecture and some of the key concepts involved in it
QR Generation In .NET
Using Barcode creator for ASP.NET Control to generate, create QR Code image in ASP.NET applications.
What Is Software Ar chitecture
Painting QR Code In VS .NET
Using Barcode encoder for .NET framework Control to generate, create QR-Code image in .NET framework applications.
Most software architecture definitions involve references to one or more of the following:
Quick Response Code Generation In VB.NET
Using Barcode encoder for Visual Studio .NET Control to generate, create QR Code 2d barcode image in Visual Studio .NET applications.
Static structure of the software Static structure refers to how elements of software relate to each other
UCC-128 Creation In Java
Using Barcode generator for Java Control to generate, create GS1 128 image in Java applications.
Dynamic structure of the software, meaning the relationships that change over the lifetime of the software and determine what the software looks like when it is running
Printing Data Matrix In Java
Using Barcode drawer for Java Control to generate, create ECC200 image in Java applications.
Composition (or decomposition) of the software This refers to the type of significant but smaller pieces, such as subsystems and modules, that can be part of the software
Paint Bar Code In Java
Using Barcode creation for Java Control to generate, create barcode image in Java applications.
Components and interaction among them This refers to the various pieces that make up the software and how they interact with each other
Making Code 39 Full ASCII In Java
Using Barcode encoder for Java Control to generate, create Code39 image in Java applications.
Layers and interaction among them Layering allows imposition of a specific ordering or structure upon the software, thereby permitting and/or preventing certain relationships as deemed appropriate for the software
Drawing GS1 - 12 In Java
Using Barcode drawer for Java Control to generate, create GTIN - 12 image in Java applications.
Organization of the physical software pieces to be deployed The physical source code must be organized into appropriate types of deployable units, for example, jar, war, and exe files, for optimal usage
International Standard Serial Number Creator In Java
Using Barcode drawer for Java Control to generate, create ISSN image in Java applications.
Constraints on the software Limitations, either natural or self-imposed For example, the requirement for software to be written in the Java language
Read EAN 13 In .NET Framework
Using Barcode scanner for VS .NET Control to read, scan read, scan image in .NET applications.
Rationale for the software That is, why does the software look the way it does This is important because from an architectural perspective, if something cannot be explained, then it isn't really part of the architecture
GTIN - 128 Generator In Visual Studio .NET
Using Barcode maker for ASP.NET Control to generate, create UCC.EAN - 128 image in ASP.NET applications.
Style that guides the software development and evolution Functionality of the software In other words, what does the software do Set of significant decisions about the organization of the software system Other considerations such as reuse, performance, scalability, and so on
Make EAN / UCC - 13 In VS .NET
Using Barcode generation for VS .NET Control to generate, create GS1 128 image in .NET applications.
The following definition perhaps best captures the essence of software architecture:
Printing Code-39 In .NET
Using Barcode creator for ASP.NET Control to generate, create Code 3 of 9 image in ASP.NET applications.
The software architecture of a program or computing system is the structure or structures of the system, which comprise software components, the externally visible properties of those components, and the relationships among them [B a s s
ECC200 Drawer In .NET Framework
Using Barcode generation for VS .NET Control to generate, create Data Matrix image in VS .NET applications.
1 9 9 7 ]
Paint ECC200 In Visual Basic .NET
Using Barcode encoder for Visual Studio .NET Control to generate, create DataMatrix image in .NET applications.
Software architecture is additionally concerned with:
Drawing UPC Symbol In .NET Framework
Using Barcode generator for ASP.NET Control to generate, create UPC-A Supplement 2 image in ASP.NET applications.
usage, functionality, performance, resilience, reuse, comprehensibility, economic and technological constraints and trade-offs, and aesthetics [Kruchten
1999 ]
Some of these latter aspects of software architecture, of course, have a somewhat more ethereal nature and do not lend themselves easily to precise analysis as do structure and decomposition, for example
It should be clear from the preceding definitions that architecture is multifaceted As such, no single diagram or drawing can be viewed as representing the architecture of given software Nor is architecture just a representation of the underlying infrastructure or the detailed design of the system
Architecture is only concerned about the internal details of the software to the extent that these internal details are manifested externally (for example, how a component behaves when viewed from the outside)
Why Architecture
Every piece of software ever created has architecture The architecture exists regardless of whether the designer of the software created it knowingly or even knew what the term software architecture meant
So, the real question is not whether your software needs to have architecture but whether you need to create it in a deliberate fashion
The following list contains a few reasons why it is important to focus on software architecture:
An ad hoc approach to software structure will eventually lead to a soft ware system that is brittle and hard to add to because no consideration was given to the need to adapt to new or changed requirements
Decomposition of the software into smaller pieces makes the software easier to understand, manage, develop, and maintain If done properly, it can also significantly improve reusability across projects
Software architecture aids in component-based software development Performance can be managed by architecting the software properly from the start Consider a project that requires a service throughout the software system Whereas in a haphazard and unplanned version of the project, the same code may be redone over and over again leading to unpredictable performance, a properly architected software that pro vides the service via a single component would have more predictable performance
Better reuse can be achieved via proper architecture Consider a product line requiring the same basic services with slight variations With a layering approach, only the topmost layers may need to be replaced Without layering, extensive changes may be necessary to support multiple products
Ill-conceived constraints can hamper the software evolution, for instance, a constraint to have a monolithic, nondistributed system because distributed software systems are harder to build
Failure to understand and identify beforehand how the software could be modified to accommodate more users and heavier data processing, provide newer services, take advantage of new technologies, and so on, can lead to a situation where the software has to be rewritten because the original architecture did not consider scala bility and
evolution needs Availability and reliability of the software system are largely dependent on the scalability of the system
Having a documented architecture makes it easier to understand and communicate the intent and substance of the software system to the development team
Security built into the software, testability of the software, maintainability, and overall manageability of the software are also strongly influenced by the architecture of the software system