Summary of a workshop on software intensive systems and uncertainty at scale. Oct 09, 2000 ieee recommended practice for architectural description for software intensive systems abstract. In proceedings of the 14th international working conference on variability modelling of softwareintensive systems vamos 20. The thresholds may vary considerably depending on software size, cost, nature of team, software process being used, software quality framework being used, and so on. Modeling is a wellproven technique for technical research and development. An outline of an architecturebased method for optimizing dependability attributes of software intensive systems. In highly complex systems with emphasis on quality attributes, architecture decisions may need to dominate functional capability choices 5. The characteristics of any software product include features which are displayed by the product when it is installed and put in use. The method prescribes creating a notional architecture as soon as the most preliminary requirements work has been completed. A softwareintensive system is any system where software contributes essential influences to the design, construction, deployment, and evolution of the system as a whole. Many applications today are dataintensive, as opposed to computeintensive. Proceedings of the seventh international workshop on variability modelling of software intensive systems predicting quality attributes of software product lines using software and network measures and sampling. Sw architecture can be used as a basis for mutual understanding, negotiation, consensus, and communication among stakeholders. Why software architects must be involved in the earliest.
Variability in software systems is usually concerned with variability in features and functionality. Software quality can be measured at various levels and stages of the software development process, from architecture to code, and it is particularly suited for software intensive systems. They are not the services which are provided by the product. Ieee 1471s contributions can be summarised as follows in this list, items in italics are terms defined by and used in the standard. Functionality, usability, reliability, performance and supportability are together referred to as furps in relation to software requirements. They have five characteristics maier, 1998 that make the system of systems designation krygiel, 1999. An outline of an architecturebased method for optimizing. Summary of a workshop on softwareintensive systems and. Service level agreements as vehicles for managing acquisition of software intensive systems. In dialogdriven software systems, we vest particular importance in the uniformity, clarity and simplicity of the dialogs. Maier, the aerospace corporation david emery, mitre rich hilliard, consentcache, inc. Ieee 1471 was created to provide a basis for thinking about the architecture of softwareintensive systems. This document contains provisions for the processes and products related to the engineering of requirements for systems and software products and services throughout the life cycle.
Architecting sos quality attributescharacteristics and subcharacteristics of any type of softwareintensive systems, needs to be updated to. The development, acquisition, and delivery of software are key to the navys ability to successfully conduct its warfighting and business operations. Adopt a strategic approach to softwareintensive mission assurance integrate preventive practices into development to support ongoing creation of evidence in support of assurance. With modern, complex software intensive systems, quality requirements may even vary depending on changes to deployment scenario and end users. Methods and principles addresses the complex issues associated with software engineering environment capabilities for designing realtime embedded software systems. What is the definition of softwareintensive system. Interoperability is an attribute of the system or part of the system that is responsible for its operation and the transmission of data and its exchange with other external systems. Use features like bookmarks, note taking and highlighting while reading architecting software intensive systems. Smu software intensive systems research overview prepared by.
Service level agreements as vehicles for managing acquisition. In 2006, the national defense industrial association ndia convened a top software issues workshop 2 to examine the current most critical issues in software engineering that impact the acquisition and successful deployment of software intensive systems. Architectural design is a crucial first step in developing complex software intensive systems. Feature attributes in extended feature modeling v3. Acq 101 module 15 software acquisition flashcards quizlet. Ieee standard 1471 is the recommended practice for architectural description for software intensive systems, developed by the ieees architecture working group awg under the sponsorship of the software engineering. Software proect management lessons learned quality attributes. Software intensive systems are of various types, ranging from enterprise systems to iots and cps to industrial control systems where software plays a vital role towards design, construction and implementation of such systems. Quality concerns in largescale and complex software.
Software intensive systems, included in appendix a, may provide insight into the. Candidate naval surface warfare center, dahlgren division approved for public release. Pdf softwareintensive systems become more and more important in our everyday lives. Recently these systems have emerged as system of systems sos. Software intensive systems are inherent in todays complex systems and are often the primary cost, schedule, and performance drivers in naval programs. Software quality model an overview sciencedirect topics. Isoiecieee international standard systems and software. Cadcam for softwareintensive systems modelcentric all problemsolution information is represented in a comprehensive multifaceted product model virtualized a system is defined by building, predeploying, and validating it in software for a hybrid hardwaresoftware virtual environment. Download it once and read it on your kindle device, pc, phones or tablets. Pdf a science of design for softwareintensive systems. Assessing the quality of large, softwareintensive systems. Architecting for variability in quality attributes of.
This recommended practice addresses the activities of the creation, analysis, and sustainment of architectures of software intensive systems, and the recording of such architectures interms of architectural descriptions. An investigation on quality attributes of systems of systems daniel soares santos thiago bianchi. Ieee 1471 is the short name for a standard formally known as ansiieee 14712000, recommended practice for architecture description of software intensive systems. Mar 10, 2020 boolean and nonboolean attributes can be attached to features. Architecture is an indepth blueprint for constructing and integrating all aspects of a software intensive system. The acdm is geared toward organizations and teams building software intensive systems and puts the software architecture frontandcenter during all phases of the project. It defines the construct of a good requirement, provides attributes and characteristics of requirements, and discusses the iterative and recursive. Ieee recommended practice for architectural description for.
In the past decade, as engineers have attempted to build softwareintensive systems of. Summary of a workshop on softwareintensive systems and uncertainty at scale. Learn the main techniques, standards and processes to develop dependable softwareintensive systems with illustration in the field of automotive and aerospace systems understand what modeldriven software engineering for dependable embedded systems entails be able to assess the dependability with analytical models. Military and naval science computer services industry contracts outsourcing defense contracts information management information technology services industry. Supporting architectural design of acknowledged softwareintensive. Communication among stakeholders every stakholder has different concerns. Aug 12, 2019 in todays software intensive systems, the software architecture also greatly influences system quality attributes, even when no such connection is apparent to the system designers. My focus here is on softwareintensive systems, which the ieee defines as follows. This connection is one reason designers must pay attention to the relationship of the needed software to the systemlevel decomposition.
Raw cpu power is rarely a limiting factor for these applicationsbigger problems are usually the amount of data, the complexity of data, and the speed at which it is changing. Finally, the directions of research and the new frontiers on testing data intensive software systems are discussed. Productivity and policy naval postgraduate school acquisition symposium 11 may 2011 kathlyn loudin, ph. Uml includes a set of graphic notation techniques to create visual models of software intensive systems. In proceedings of the 14th international working conference on variability modelling of. An outline of an architecturebased method for optimizing dependability attributes of softwareintensive systems. Modeling of software intensive systems, using the unified modeling.
As the evaluation of the quality properties differ in architecture and code and even when the system is running, various evaluation methods and techniques may. Performance shows the response of the system to performing certain actions for a certain period of time. Predicting quality attributes of software product lines using. Cmusei2003tr016 1 1 introduction in softwareintensive systems, the achievement of qualitiessuch as performance, availability, security, and modifiabilityis dependent on the software architecture. Master in information and computer sciences master in. Within institute of electrical and electronics engineers ieee parlance, this is a recommended practice, the least normative of its standards. The architecture of the system had a number of characteristics that. Start studying acq 101 module 15 software acquisition. Concepts of the architecture of softwareintensive systems.
Architecture is recognized as a critical element in successful softwareintensive systemscomplex systems where software contributes essential influences to the design, construction, deployment and evolution of the system as a whole. This groundbreaking work provides relevant theoretical foundations, principles, methodologies, frameworks, and the latest research findings in. Introduction to software engineeringuml wikibooks, open. Learn vocabulary, terms, and more with flashcards, games, and other study tools. However, variability also occurs in quality attributes e. Finally, the directions of research and the new frontiers on testing dataintensive software systems are discussed. The software system should enable flexible data input on the part of the user and should carry out plausibility checks on the input. Qosintensive systems are ones in which services must either continually meet a wide range of strict qos limits or face serious to catastrophic consequences. Principles of the architecture of softwareintensive systems description. Software quality assurance in large scale and complex software intensive systems presents novel and highquality research related approaches that relate the quality of software architecture to system requirements, system architecture and enterprisearchitecture, or software testing.
To be complete, there is usually a fourth category of maintenance activities focused on anticipated. An investigation on quality attributes of systemsofsystems. Boolean and nonboolean attributes can be attached to features. Qosintensive systems are necessarily also psaintensive, because largescale distributed systems arent sufficiently fixed over time for their qos certifications to remain adequately. Together, reliability, availability, serviceability, usability and installability, are referred to as rasui. Mar 18, 2020 the diversity of software systems should be communicating with each other.
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