Assessing the quality of large, softwareintensive systems. Softwareintensive systems, included in appendix a, may provide insight into the multifaceted task of preparing for sustainment doaf 03. This paper examines software intensive system acquisition, including best practices and assessment framework. Software intensive systems will act as global computers in highly dynamic environments and will be based on and integrated with serviceoriented and pervasive computing. We at ieee software and systems technical committee are interested to hear your understanding of the term software intensive systems, and some examples of. Establishes business decision artifacts to manage risk and enable successful software acquisition and development. What is the definition of softwareintensive system. There are several definitions for software intensive. Other possible sources of information include the defense systems management colleges acquisition logistics guide dsmc 97 and the dods national security space acquisition policy dod 04. Ulssis is defined as ultralargescale software intensive systems somewhat frequently. The programs that are part of the system software include assemblers, compilers, file. 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. Architecture is an indepth blueprint for constructing and integrating all aspects of a. How is ultralargescale softwareintensive systems abbreviated.
Verification and validation of modern software intensive systems brings the classic approaches up to date to apply them to contemporary computing methods. Sisos is defined as software intensive system of systems rarely. As dod changes the way it manages software intensive systems, it must take steps to ensure better acquisition outcomes. Agile at scale, safetycritical systems, monitoring software intensive system acquisition programs, managing intellectual property in the acquisition of software intensive systems, and managing operational resilience. 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. Establishes business decision artifacts to manage risk and. Ultralargescale system ulss is a term used in fields including computer science, software engineering and systems engineering to refer to software intensive systems with unprecedented amounts of hardware, lines of source code, numbers of users, and volumes of data. And increased hardware and software capability are driving highly touted plans to maximize system integration and. An electronic intensive care unit eicu is a form of telemedicine that utilizes state of the art technology to provide an additional layer of critical care service. Includes processes, procedures, people, material and information required to support, maintain and operate the software aspects of a system sei definition.
Ieee recommended practice for architectural description for software intensive systems abstract. How is softwareintensive system of systems abbreviated. Systems engineering for softwareintensive systems, graduate. Establishes the software acquisition pathway as the preferred path for acquisition and development of software intensive systems. Softwareintensive system of systems listed as sisos. Students may pursue the certificate concurrently with any. Reducing risk in dod softwareintensive systems development.
Oct 26, 2015 ultimately, sei curated recommended practices on five software topics. Software intensive system how is software intensive system abbreviated. What is your understanding of software intensive systems. Softwareintensive system of systems how is software. Sisos software intensive systems of systems acronymattic. Acq 101 module 15 software acquisition flashcards quizlet. Verification and validation of modern softwareintensive. Engineering dependability requirements for software. It has been observed by several consultants, researchers, and authors that inadequate requirements are a major cause of accidents involving software. How is ultralargescale software intensive systems abbreviated.
However, actual practice shows that the techniques for engineering software intensive systems suffer from many severe deficiencies in quality and methodological shortcomings. The required contents of an architecture description are specified. System software refers to the files and programs that make up your computers operating system. Mitre recruits, employs, trains, compensates, and promotes regardless of age, color, race, disability, marital status, national and ethnic origin, political affiliation, religion, sexual orientation, gender identity, veteran status, family medical or genetic information, and other protected status. In the past decade, as engineers have attempted to build softwareintensive systems of a scale not. Comprehensive requirements to support, maintain and operate the software capabilities of a system. Software intensive system of systems listed as sisos. A conceptual framework for architectural description is established. Concepts of the architecture of softwareintensive systems description architecture is recognized as a critical element in successful softwareintensive systems complex systems where software contributes essential influences to the design, construction, deployment and evolution of the system as a whole. There is a growing body of knowledge in the application of architectural concepts to. Agile at scale, safetycritical systems, monitoring softwareintensive system acquisition programs, managing intellectual property in the acquisition of softwareintensive systems, and. Citeseerx document details isaac councill, lee giles, pradeep teregowda. Candidate naval surface warfare center, dahlgren division approved for public release.
Projects, products, and processes paperback sei series in software engineering. Ieee 1471 is a superseded ieee standard for describing the architecture of a softwareintensive system, also known as software architecture. An artifact is one of many kinds of tangible byproducts produced during the development of software. 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. Ansiieee 1471 background ansiieee 1471, the ieee recommended practice for architectural description of softwareintensive systems ansiieee, 2000 was developed in response to the recent and widespread interest in software architecture and the emergence of common practices in that field which could be standardized. How is software intensive system of systems abbreviated.
Sisos stands for software intensive system of systems. The term equipment in the it definition means equipment that is used solely by a component. Software intensive system how is software intensive. Many softwareintensive systems have significant safety and security ramifications and need to have their associated safety and securityrelated requirements properly engineered. Characterizing architecture description languages for softwareintensive systemsofsystems. Ulssis stands for ultralargescale software intensive systems. Software sustainment under secretary of defense for. The composition of systems has changed from primarily hardware to highly software intensive.
Which of the following softwareintensive systems are categorized as embedded and c41sr systems. These proceedings consist of papers from the first international conference on complex, intelligent and software intensive systems held at the vienna u. Software problems in government systems regularly make national headlines and have been featured in government reports dsb 00, gao 04. Ultimately, sei curated recommended practices on five software topics. This recommended practice addresses the activities of the creation, analysis, and sustainment of architectures of softwareintensive systems, and the recording of such architectures interms of architectural descriptions. Sustaining softwareintensive systems may 2006 technical note mary ann lapham contributor carol woody. Software intensive system sis development can be understood as having three aspects. Softwareintensive system of systems how is softwareintensive system of systems abbreviated. Mitre is proud to be an equal opportunity employer. The process of finding and defining an architecture in systems engineering is called architecting. If we think of the computer system as a layered model, the system software is the interface between the hardware and user applications. 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.
Hybrid model b software dominant, depicts how a software intensive product development can include a mix of incrementally deployed software products or releases that include intermediate software builds. There are several definitions for software intensive systems including ieee 14712000. Although this article focuses on software intensive systems, it is important to remember that a software intensive system still needs hardware in order to execute and that certain qualities, such as reliability or performance, are achieved through a combination of software and hardware. A defining characteristic of software is that it affords unprecedented opportunities for systems in the field to be changed or reconfigured quickly and for customizing. Start studying acq 101 module 15 software acquisition.
The workshop on engineering softwareintensive systems took place in edinburgh. The scale of these systems gives rise to many problems. Sustainment done well leads to wellsupported software intensive systems and reduced total ownership costs and should help organizations meet current and new mission area and capabilities requirements. Within institute of electrical and electronics engineers ieee parlance, this is a recommended practice, the least normative of its standards. This definition appears rarely and is found in the following acronym finder categories. Software is becoming a more ubiquitous element of defense systems, and it is also playing an increasingly.
System files include libraries of functions, system services, drivers for printers and other hardware, system preferences, and other configuration files. A conceptual model of architecture description is established. Productivity and policy naval postgraduate school acquisition symposium 11 may 2011 kathlyn loudin, ph. Software intensive systems georgia tech software development. Verification and validation of modern softwareintensive systems schulmeyer, g. Ulssis stands for ultralargescale softwareintensive systems.
However, actual practice shows that the techniques for engineering softwareintensive systems suffer from many severe deficiencies in quality and methodological shortcomings. There are several definitions for software intensive systems. Ulssis is defined as ultralargescale softwareintensive systems somewhat frequently. Enterprise engineering enterprise technology, information, and infrastructure information and data management. The defense testing and acquisition community is faced with systems in development that are increasingly software intensive, making use of a wide variety of methods of software development. Early in the panels work, it became clear that software is a critical path through which systems achieve their performance objectives. Softwareintensive systems will act as global computers in highly dynamic environments and will be based on and integrated with serviceoriented and pervasive computing. Sisos softwareintensive system of systems acronymfinder. System software is a type of computer program that is designed to run a computers hardware and application programs. Engineering safety and security related requirements for. Oliveira our experiences in helping to define, acquire, develop, and assess 21st century softwareintensive systems of.
Software intensive system how is software intensive system. The content of an architectural description is defined. This leads firms to come to us for staff augmentation for software engineering and product management. The process of modifying a software system or component after delivery to correct faults, improve performance or other attributes, or adapt to a changed environment. All of the comments about incremental software fielding associated with model 3 in paragraph 5c3d apply to this model as well. October 2008 integration of software intensive systems copyright 2008 lockheed martin corporation. Ieee recommended practice for architectural description.
The program is designed to teach students the infrastructure of systems engineering, which involves the integration of electronics, mechanics, ergonomics, aerodynamics, software, etc. We therefore recognized the need for special attention to softwareintensive systems and better understanding of how operational testing is conducted on software. Software maintenance and software sustainment are often used interchangeably. It also empowers us to provide efficient, expert ongoing support with a host of operational best practices, like security and maintenance updates and automating manual qa tests. It has been observed by several consultants, researchers, and authors that inadequate requirements are a major cause of accidents involving softwareintensives systems, and poor security. Sisos stands for softwareintensive system of systems.
Software maintenance the process of modifying a software system after delivery to correct faults, improve performance or adapt it to a changed environment ieee definition actual changesupdates to the software code. 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. Software is becoming a more ubiquitous element of defense systems, and. Ieee 1471 is the short name for a standard formally known as ansiieee 14712000, recommended practice for architecture description of software intensive systems. Sustaining softwareintensive systems sei digital library. Establishes the software acquisition pathway as the preferred path for acquisition and development of softwareintensive systems. Sustainment done well leads to wellsupported softwareintensive systems and reduced total ownership costs and should help organizations meet current and new mission area and capabilities requirements.
Ieee recommended practice for architectural description for. Learn vocabulary, terms, and more with flashcards, games, and other study tools. This 2006 report discusses questions about sustaining new and legacy systems. We therefore recognized the need for special attention to software intensive systems and better understanding of how operational testing is conducted on software. Architecture viewpoints, architecture frameworks and architecture.
A softwareintensive system is any system where software contributes essential influences to the design, construction, deployment, and evolution of the system as a whole. Students may pursue the certificate concurrently with any graduate degree program in the school. Projects, products, and processes paperback sei series in software engineering stutzke, richard d. Dependability of these systems relies heavily on the emergent properties that result from the complex interdependencies that exist among the involved systems and their environments. The unsuccessful softwareintensive systems have suffered dramatic cost and schedule overruns, impacting modernization. Principles of the architecture of softwareintensive systems description. The secretary of defense should, to ensure dod has the knowledge it needs to oversee softwareintensive acquisitions, have acquirers require software contractors to collect and report metrics related to cost, schedule, size, requirements, tests, defects. Maier, the aerospace corporation david emery, mitre rich hilliard, consentcache, inc. An eicu support center can provide care to patients in multiple hospitals. Engineering dependability requirements for softwareintensive systems is inherently difficult. Verification and validation of modern softwareintensive systems.