The following diagram displays a conceptual flow of the ATAM: INCLUDEPICTURE "http://www.sei.cmu.edu/architecture/atam_flow.gif" \* MERGEFORMATINET Figure SEQ Figure \* ARABIC 2: The conceptual flow of ATAM The ATAM process consists of gathering stakeholders together to analyze business drivers and from these drivers extract quality attributes that are used to create scenarios. CT059-3.5-3 Software Architecture Testing Software Architecture Analysis Method (SAAM) Step 4 – Individually evaluate Indirect Scenarios • Once the scenario is selected, map to the architectural description • Show how the architecture would need to be changed to accommodate the scenario • This will allow the stakeholders to have in-depth understanding • For each scenario the changes to the architecture … Hong Zhang 3. trailer Step 3: Identify candidate architectural drivers, thats to identify architecturally significant requirements that apply to the element being designed. ATAM is one approach for analyzing architectures, which evaluates attributes of interest under different scenarios. This style fits a program analyzing and formatting text or data, but is not so useful for an interactive system. An Architecture Tradeoff Analysis Method-based technique is the most rigorous of the three approaches discussed in this book and as such may yield the best results, providing that the review is conducted by closely following the Architecture Tradeoff Analysis Method process and the review team has gone through the formal Architecture Tradeoff Analysis Method evaluator training. Software Architecture Analysis Method (SAAM) 2.1.1. software architectures it is a useful analysis method. The high-definition Software Architecture PowerPoint template has been designed by professional graphic designers upon vector-base. The Software Architecture Analysis tool can be applied to XMI output generated by a UML modelling tool. increased communication among stakeholders. This is in contrast to traditional computer science approaches to the design and creation of software systems, which emphasize data structures and algorithms over structure. t � 6������� ��6� � � �� �� �� ��� 4� 4� 0000001286 00000 n U 0000000671 00000 n The Top-down Microarchitecture Analysis Method based on the Top-Down Characterization methodology aims to provide an insight into whether you have made wise choices with your algorithms and data structures. Example: A trivial architectural drawing containing a client and server component, connected by an RPC connector. t � 6������� ��6� � � �� �� �� ��� 4� 4� A stack of boxes or a number of concentric circles is often used to represent a layered architecture graphically. 0000002878 00000 n identified risks early in the life-cycle . Architecture is a high level design. It is easy to extend if a scheduler is needed, it is added as a new accesso , no existing component needs to be changed. 0000001426 00000 n ware Architecture Analysis Method (SAAM). <]>> 0000001564 00000 n It defines a structured solutionto meet all the technical and operational requirements, while optimizing the common quality attributes like performance and security. These scenarios are then used in conjunction with architectural approaches and architectural decisions to create an analysis of trade-offs, sensitivity points, and risks (or non-risks). 0000001069 00000 n SOFTWARE ARCHITECTURE ANALYSIS METHODS 2.1 Scenario-based analysis method Scenario-based analysis method was developed in 1993 to better understand the general concepts of architecture. We'll also talk about how the architecture touches on the process of software development. l a� yt�-� $����&�#$/�� If gd�-� gd�hD N O P Q R � � S � M kd& $$If �l � �� � In software engineering, Architecture Tradeoff Analysis Method (ATAM) is a risk-mitigation process used early in the software development life cycle. l a� yt�-� R S T U b c d � � S = = = ��$����&�#$/�� If ^��gd H M kd� $$If �l � �� � 0000000016 00000 n / K L M N O P Q R S T U a b c d e g h i j k ����컬����월��k���V )h�e� 5�B*CJ OJ QJ \�^J aJ ph =j h�-� 5�B*CJ OJ QJ U\�^J aJ mH nH ph uh�e� h H 5�\� h�e� 5�\� h�e� h�e� 5�\� h�e� h�e� h�e� h�e� B*CJ aJ phHC) h�e� h�e� CJ aJ )h�e� 5�B*CJ0 OJ QJ \�^J aJ0 ph6_� h�e� 5�CJ0 OJ QJ \�^J aJ0 h�e� j h�e� UmH nH tHu . See the Figure SEQ Figure \* ARABIC 6: A blackboard (repository) architecture Example: A student registration system of a university, Repository contains all the data about students, courses, schedules� and accessors like admin, approvals, registration, reports which perform operations on the data. It is Attribute-Driven Design, a method for designing the software architecture of a system or collection of systems based on an explicit articulation of the quality attribute goals for the system(s). Layered Architecture Layered architecture, focus on the different abstraction levels in a system, such as the software in a personal computer. reusable set of well-defined functionality that encapsulates its implementation and exporting it as a higher-level interface Styles Definition: Style of software architecture is an established pattern of components with a name, such as client-server architecture. INCLUDEPICTURE "http://www.cs.cmu.edu/~acme/docs/images/SimpleClientServer.png" \* MERGEFORMATINET Figure SEQ Figure \* ARABIC 13 : Simple Client-Server Diagram The client component is declared to have a single send-request port, and the server has a single receive-request port. 740f02presentations22 3 Software Architecture Analysis Methods Presented By 1. There are known patterns to achieve various qualities and functionality. Allowing design to begin early enough in the life cycle to support modern time-to-market requirements. 0 endstream endobj 100 0 obj<. INTRODUCTION The first step in making good software is making a Many are downloadable. Analyze architectural approaches - Perform step 6 again with the added knowledge of the larger stakeholder community. Figure SEQ Figure \* ARABIC 10: CAM design of a Chat application Figure SEQ Figure \* ARABIC 11: DAOP-ADL specification of the components and aspects Figure SEQ Figure \* ARABIC 12: DAOP-ADL specification of the Composition Rules ACME: It is an ADL (Architecture Description Language) that was developed to create a common interchange format in the software engineering community. %%EOF V 0000003203 00000 n ��ࡱ� > �� � � ���� � � � � � � � � � � � � � � � � � � ������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������ � �� 0 ED bjbj���� 7� �� �� �; n �� �� �� � ] ] � � � ���� � � � � � � � � �� Z � � G G G G �# @ $ $ u� w� w� w� w� w� w� $ P� � � � �� � "$ F# | �# "$ "$ �� ] ] G G � �� v' v' v' "$ � ] R G � G u� v' "$ u� v' v' b �� $ � " �� G ���� ������� � �$ � �� V a� Ƙ 0 �� � � Ğ �% � Ğ � �� �� � Ğ � }� � "$ "$ v' "$ "$ "$ "$ "$ �� �� v' "$ "$ "$ �� "$ "$ "$ "$ ���� ���� ���� ���� ���� ���� ���� ���� ���� ���� ���� ���� ���� ���� ���� ���� ���� Ğ "$ "$ "$ "$ "$ "$ "$ "$ "$ # : Software Architecture Design and AnalysisSoftware Architecture Course[18-04-2009] Introduction Software architecture is the study of large software systems, from the perspective of their structure. ATAM was developed by the Software Engineering Institute at the Carnegie Mellon University. Styles Types: Pipe-and-Filter In a pipe-and-filter system the data flow in the system is in focus. Its purpose is to help choose a suitable architecture for a software system by discovering trade-offs and sensitivity points. ��0_�0�ˮ�i%��{���,->����C�qr�}7�mp⨝������Pv��ܡ�e�H��b}qՂ�$��4cD����-� @�< �5�A��@~�-�M�E�����}MZϐjZCl�e�ص������d���z\�s��T���c`% ۺ* UZW+�_J�d�� $hҘ�������dG�տlux�6{f�03 Choose the solutions that are most appropriate for the high priority architectural drivers. In its pure form, communications between the different layers must only occur in the interfaces between two adjacent layers. xref 0000002149 00000 n It has the following limitations − Lack of tools and standardized ways to represent architecture. Keywords— software architecture, analysis, metric collection I. Then from these drivers quality attributes and business scenarios are created. 0000002600 00000 n Only one connector style in this � read/write Figure SEQ Figure \* ARABIC 7: Example Client-Server Architecture This architecture is especially fit when the hardware is organized as a number of local computers (e.g. Experience with SAAM and SAAM-related techniques will be recounted in Section 3. Representations (methodologies): ADD method ATAM method ADD method: What is ADD? Components do not directly communicate with each other. Most of the time your professors restrict you to a specific board size and number of boards. A flexible annotation mechanism supporting association of non-structural information using externally defined sublanguages. n Figure SEQ Figure \* ARABIC 5: The layered architecture of a personal Blackboard Architecture A blackboard (or repository) architecture draws the attention to the data in the system. 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