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Andy and Chris were on a panel with Phil Cameron at the AADL Game Con! We talked about “How to GM like a pro”. Thanks to everyone who came out! It was a lovely time. The panel is also on youtube if you want to watch us talk instead of listen.
Welcome to The Gayest Generation, where we hear LGBTQ older adults speak for themselves. Every episode, we sit down with a different member of the LGBTQ community who laid the foundation for the freedoms we have today. Their stories make noise where there is silence and that silence has lived for far too long. In this episode, we speak with theater director and educator Michael Walling. We discuss growing up in Portland during the 70's, being a New Yorker during the AIDS crisis, and the staying power of Tom Selleck's moustache. AADL is excited to announce that you can listen to this episode, or any episode of The Gayest Generation, on Apple Podcasts, Spotify, or YouTube! If you or someone you know is interested in being a guest on the show, email thegayestgeneration@aadl.org.
Welcome to The Gayest Generation, where we hear LGBTQ older adults speak for themselves. Every episode, we sit down with a different member of the LGBTQ community who laid the foundation for the freedoms we have today. Their stories make noise where there is silence and that silence has lived for far too long. In this episode, we speak with Lisa Middleton. We learn about what it's like to be one of first openly transgender people elected to an American city council, how libraries played a role in her quest to live authentically, and how true love can look like driving around the same roundabout for three hours. AADL is excited to announce that you can listen to this episode, or any episode of The Gayest Generation, on Apple Podcasts, Spotify, or YouTube! If you or someone you know is interested in being a guest on the show, email thegayestgeneration@aadl.org.
Welcome to The Gayest Generation, where we hear LGBTQ older adults speak for themselves. Every episode, we sit down with a different member of the LGBTQ community who laid the foundation for the freedoms we have today. Their stories make noise where there is silence and that silence has lived for far too long. It is time we let their voices fill the room. In this episode, we speak with Kansas State Congresswoman Stephanie Byers. We learn about what it's like to be one of first openly transgender people elected to a State Legislature, growing up as a member of the Chickasaw nation, and what it means to live life authentically. AADL is excited to announce that you can listen to this episode, or any episode of The Gayest Generation, on Apple Podcasts, Spotify, or YouTube! If you or someone you know is interested in being a guest on the show, email thegayestgeneration@aadl.org.
Welcome to The Gayest Generation, where we hear LGBTQ older adults speak for themselves. Every episode, we sit down with a different member of the LGBTQ community who laid the foundation for the freedoms we have today. Stories—their stories—make noise where there is silence and that silence has lived for far too long. It is time we let their voices fill the room. In this episode, we hear from CEO of the LGBTQ Victory Fund and former Mayor of Houston, TX Annise Parker. We learn about how she overcame immense adolescent anxiety, what an average day looks like for the mayor of a major American city and the unexpected kindnesses that led Mayor Parker to where she is today. AADL is excited to announce that you can listen to this episode, or any episode of The Gayest Generation, on Apple Podcasts, Spotify, or YouTube! If you or someone you know is interested in being a guest on the show, email thegayestgeneration@aadl.org.
In this SEI Podcast, Aaron Greenhouse, a senior architecture researcher with Carnegie Mellon University's Software Engineering Institute, talks with principal researcher Suzanne Miller about use of the Bell–LaPadula mathematical security model in concert with the Architecture Analysis and Design Language (AADL) to model and validate confidentiality. Greenhouse and Miller also discuss 11 analysis rules that must be enforced over an AADL instance to ensure the consistency of a security model. Mapping Bell–LaPadula to AADL allows the expression of key concepts within the AADL model so that they can be analyzed automatically.
Welcome to The Gayest Generation, where we hear LGBTQ Elders speak for themselves. Every episode, we sit down with a different member of the LGBTQ community who laid the foundation for the freedoms we have today. Stories—their stories—make noise where there is silence and that silence has lived for far too long. It is time we let their voices fill the room. In this episode, we hear from Ann Arbor's own Annie Wolock. We learn what is was like growing up Jewish in Detroit, Ann Arbor's forgotten Disco scene, and we remember Michigan Womyn's Music Festivals. Due to adult language, listener discretion is advised. AADL is excited to announce that you can listen to this episode, or any episode of The Gayest Generation, on Apple Podcasts, Spotify, or YouTube! If you or someone you know is interested in being a guest on the show, email thegayestgeneration@aadl.org.
Welcome to The Gayest Generation, where we hear LGBTQ Elders speak for themselves. Every episode, we sit down with a different member of the LGBTQ community who laid the foundation for the freedoms we have today. Stories—their stories—make noise where there is silence and that silence has lived for far too long. It is time we let their voices fill the room. In this episode, we get to know Ann Arbor's own Carol E. Anderson. You will hear about her experiences growing up in a fundamentalist Baptist home, what it was like to live in Ann Arbor during the freewheeling 70's , and how to make your relationship last. Due to adult situations and language, viewer discretion is advised. This is the Gayest Generation. We want to give a special thank you to Carol for speaking with us. Be sure to check out her memoir, "You Can't Buy Love Like That: Growing Up Gay in the Sixties." AADL is excited to announce that you can listen to this episode, or any episode of The Gayest Generation, on Apple Podcasts, Spotify, or YouTube! If you or someone you know is interested in being a guest on the show, email thegayestgeneration@aadl.org.
In this episode, we get to know Washtenaw County drag legend Maxi Chanel. We'll hear about her experiences growing up in Nigeria, what it was like to be a part of Ann Arbor's soon-to-be-forgotten gay club scene, and the purpose of drag, which is all the more important during these grim times. Due to adult situations and language, viewer discretion is advised. This is the Gayest Generation. We want to give a special shout out to Maxi Chanel and the Boylesque drag troupe. To keep up with their events, be sure to follow them on Facebook at facebook.com/boylesque.michigan. AADL is excited to announce that you can listen to this episode, or any episode of The Gayest Generation, on Apple Podcasts (or whatever your preferred place for podcast listening is!) If you or someone you know is interested in being a guest on the show, e-mail thegayestgeneration@aadl.org.
We finally did it, we reached episode 30! To celebrate the 'big 3 0' we decided to invite back co-hosts Raymond Wiley and Austin Gandy to get the proceedings in full swing, and booked a guest that we've been hankering after for a while now. To top this off, we also recorded the show live (something we plan to do from now on), and our audience gave us some great questions!The guest in question, Isaac Bonewits, has had a fantastically rich career in occultism. From becoming the ArchDruid of the RDNA, to helping reconstruct the 'Caliphate' branch of the OTO, Isaac gives us a fantastically engaging, frank and often funny, interview.Discussed this week: Why Neo-paganism appears to be changing, How to get thrown out of the Church of Satan by Aton Lavay, being awarded the only recognised academic degree in 'Magic', the effect of 'crud' on estoterism, and uncle Aleister.Of course, no show would be complete without a musical interlude from the amazing Daddytank and his chorus of noise! This weeks entertainers:Each Paw Gremlin Small - IIIseye.r.o.d.e - R03Early Paintings - FundamentalistWe'll keep you posted on the site for when we're doing the next live show. You can also follow site developments on Twitter, just follow @sittingnowenjoy!Isaac Bonewits Bio:Bonewits, P. E. I. (Isaac) (1949–?) One of the brightest and most colorful figures of the Neopagan movement, Philip Emmons Isaac Bonewits is best known for his leadership in modern Druidism. He is a priest, magician, scholar, author, bard and activist, and has dedicated himself to reviving Druidism as a “Third Wave” religion aimed at protecting “Mother Nature and all Her children.“Bonewits was born on October 1, 1949, in Royal Oak, Michigan — the perfect place, he likes to joke, for a future Archdruid. The fourth of five children (three girls, two boys), he spent most of his childhood in Ferndale, a suburb of Detroit. When he was nearly 12, the family moved to [Southern California, first on the actual beach of Capistrano Beach, later to] San Clemente, California.From his mother, a devout Roman Catholic, Bonewits developed an appreciation for the importance of religion; from his father, a convert to Catholicism from Presbyterianism, he acquired skepticism. He bounced back and forth between parochial and public schools, largely due to the lack of programs for very bright students — his I.Q. was tested at 200.His first exposure to magic came at age 13, when he met a young Creole woman from New Orleans who practiced Voodoo. She showed him some of her magic and so accurately divined the future [and so successfully performed spells] that he was greatly impressed. During his teen years, he read extensively about magic and parapsychology. He also read science fiction, which often has strong magical and psychic themes.In ninth grade, Bonewits entered a Catholic high-school seminary. He soon realized, however, that he did not want to be a priest in the Catholic faith. He returned to public school and graduated a year early. After spending a year in junior college to get foreign language credits, he enrolled at the University of California at Berkeley in 1966. At about the same time, he began practicing magic, devising his own rituals by studying the structure of rituals in books, and by observing them in various churches.His roommate at Berkeley, Robert Larson, was a Druid, an alumnus of Carleton College, where the Reformed Druids of North America (RDNA) had been founded in 1963. Larson interested Bonewits in Druidism and initiated him into the RDNA. The two established a grove in Berkeley. Bonewits was ordained as a Druid priest in October 1969. The Berkeley grove was shaped as a Neopagan religion, unlike other RDNA groves, which considered the order a philosophy. The Neopagan groves became part of a branch called the New Reformed Druids of North America (NRDNA).During college, Bonewits spent about eight months as a member of the Church of Satan, an adventure that began as a lark. The college campus featured a Spot where evangelists of various persuasions would lecture to anyone who would listen. As a joke, Bonewits showed up one day to perform a satirical lecture as a Devil’s evangelist. He was so successful that he was approached by a woman who said she represented Anton Szandor LaVey, the founder of the Church of Satan. Bonewits attended the church’s meetings and improved upon some of their rituals but dropped out after personality conflicts with LaVey. The membership, he found, consisted largely of middleclass conservatives who were more “rightwing and racist” than Satanist.Bonewits had intended to major in psychology but through Berkeley’s individual group-study program fashioned his own course of study. In 1970 he graduated with a bachelor of arts degree in magic [and thaumaturgy], the first person ever to do so at a Westem educational institution. He also was the last to do so in the United States[?]. College administrators were so embarrassed over the publicity about the degree that magic, witchcraft and sorcery were banned from the individual group-study program.The fame of his degree led to a book contract. In 1971 Real Magic was published, offering Bonewits’ views on magic, ritual and psychic abilities. A revised and updated edition was published in 1979 and reissued in 1989.In 1973 Bonewits met a woman named Rusty [Elliot], a folksinger in the Berkeley cafes. They moved to Minneapolis, where they were married, and where Bonewits took over the editorship of Gnostica, a Neopagan journal published by Carl Weschcke of Llewellyn Publications. He gaveGnostica a scholarly touch and turned it into the leading journal in the field. But the job lasted only 1 1/2 years, for the editorial changes resulted in the loss of many non-Pagan readers, who found the magazine too high brow.Bonewits remained in Minneapolis for about another year. While there he established a Druid grove called the Schismatic Druids of North America, a splinter group of the RDNA. He also joined with several Jewish pagan friends and created the Hasidic Druids of North America, the only grove of which existed briefly in St. Louis, where its membership overlapped with that of the Church of All Worlds. In 1974–75, Bonewits [partially] wrote, edited and self-published The Druid Chronicles (Evolved), a compendium of the history, theology, rituals and customs of all the Reformed Druid movements, including the ones he invented himself.[During this same time] he also founded the Aquarian Anti-Defamation League (AADL), a civil liberties and public relations organization for members of minority belief systems, such as the Rosicrucians, Theosophists, Neopagans, Witches, occultists, astrologers and others. [See The Aquarian Manifesto.] Bonewits sought to convince such persons that they had more in common with each other than they realized. By banding together, they could effectively fight, through the press and the courts, the discrimination and harassment of the Judeo-Christian conservatives.Bonewits served as president of the AADL and devoted most of his income — from unemployment insurance — to running it. The organization scored several small victories in court, such as restoring an astrologer to her apartment, after she had been evicted because a neighbor told her landlord that her astrology classes were “black magic seances.” In 1976 Bonewits and Rusty divorced, and he decided to return to Berkeley. The AADL disintegrated shortly after his departure.In Berkeley, Bonewits rejoined the NRDNA grove and was elected Archdruid. He established The Druid Chronicler (which later became Pentalpha Journal) as a national Druid publication in 1978. He attempted to make the Berkeley grove as Neopagan as the groves in Minneapolis and St. Louis, which caused a great deal of friction among the longtime members. After a few clashes, Bonewits left the organization. Pentalpha Journal folded.[Also in 1978 , he researched and wrote Authentic Thaumaturgy, essentially a rewrite of Real Magic for players of fantasy role-playing games such as Dungeons & Dragons. It was published in booklet format, shown left, in 1978 and 1979 by The Chaosium, publishers of the Runequest and Call of Cthulu games. “A.T.” became highly influential in the RPG community, even though no more than 1,000 copies were ever printed. Many years later, in 1998, he published a dramatically expanded and updated edition, shown right, for Steve Jackson Games, which released it as a large trade paperback. Excerpts from this new edition can be foundhere.]In 1979 he married for a second time, to a woman named Selene [Kumin]. That relationship ended in 1982 [after a brief stay in Santa Cruz, California, where he worked as a typesetter]. In 1983 he was initiated into the New Reformed Order of the Golden Dawn [the San Francisco Bay Area’s best known, and stereotypically “eclectic,” Wiccan tradition]. The same year, he married again, to Sally Eaton, the actress who created the role of the hippie Witch in the Broadway musical, Hair. [During the early 1980s, Bonewits and Eaton were heavily involved in the California revival of the Ordo Templi Orientis, or “O.T.O.,” best known for its most important historical figure, Aliester Crowley.] They moved to New York City in 1983 where Bonewits met Shenain Bell, a fellow Neopagan, and discussed the idea of starting a Druidic organization.The fellowship, Ár nDraíocht Féin (“Our Own Druidism” in Irish Gaelic), was born as a fresh Neopagan religious organization with no ties to the ancient Druids or to the RDNA, which by this time was apparently [but not exactly] defunct. Bonewits became Archdruid, and Bell became ViceArchdruid.In 1986 Bonewits and Eaton separated, and he moved to Kansas City for several months, where he worked as a computer consultant. He then returned to Berkeley but could not find work in Silicon Valley, which was in a slump [they had a glut of unemployed technical writers at the time]. He moved back to the East Coast, to Nyack, New York, near Manhattan, in November 1987, with his intended fourth wife, Deborah Lipp, a Wiccan high priestess [and married her in 1988]. He continued work as a computer consultant and worked on the building of Ár nDraíocht Féin. He also began work on a book on the creation, preparation and performance of effective religious rituals [finally published as Rites of Worship: A Neopagan Approachin 2004 and as Neopagan Rites in 2007].[From 1988 through 1995, Bonewits and Lipp were partners (along with several others across the continent) in making ADF the largest and most successful Neopagan Druid organization in North America, with legal standing and tax exempt status in the USA. For most of this time, they were also partners in running a Gardnerian Wiccan “Pagan Way” group and then a coven in New York and New Jersey.][1990 saw the birth of Bonewits’ first known child, Arthur Lipp-Bonewits, at their home in Dumont, New Jersey. Arthur quickly became known among East Coast Neopagans as an intelligent, self-aware, and hyperactive child. 1990 also saw, however, a serious blow to Bonewits’ health, when he began showing symptoms of a newdisease called Eosinophilia Myalgia Syndrome, caused by chemically contaminated L-Tryptophan tablets manufactured in Japan and consumed by tens of thousands of Americans in 1989. This multisystemic disease caused Bonewits an increasing inability to perform his secular or Archdruidic duties, leading to his loss of employment in 1992 and his resignation as Archdruid of ADF, and assumption of the Archdruid Emeritus title, on January 1, 1996. In 1997 and 1998, Bonewits began to show signs of recovering from the disease’s worst effects, except for relapses in the winter months, but by this time the disease had also caused severe damage to his marriage with Deborah, and in 1998 they separated.]The “10–year gap.” Bonewits has discovered, he says, a “10–year gap” between many of his views and their acceptance among Neopagans. In 1973 he was the first Neopagan to state publicly that the alleged antiquity of Neopagan Witchcraft (Wicca) was “hogwash.” The Craft, he said, did not go back beyond Gerald B. Gardner and Doreen Valiente [Now he is willing to push it all the back to the 1920’s. See Witchcraft: A Concise Guide]. Bonewits was held in contempt by many for that, yet by 1983, Neopagans generally acknowledged that Neopagan Witchcraft was a new religion, not the continuation of an old one. The Aquarian Anti-Defamation League was also ahead of its time. In 1974–75, Neopagans were not ready to admit that they needed public relations and legal help. By a decade later, a number of such organizations were in existence.Around 1985 Bonewits began regularly discussing the need to provide social services for domestic and personal problems and drug dependencies. Neopagans, he points out, represent a cross section of the population, and such problems cut across religious lines. Bonewits estimates that as many as 80 percent of Neopagans come from “non[‘dys-’]functional family” backgrounds. Neopagans, he observes, are brighter and more artistic than average, but also, therefore, “more neurotic.” [He now thinks much of it may be related to “Aspergers Syndrome”] The community has been quick to address these social issues with programs [such as various “Pagan 12-Step Programs”].Bonewits also began lobbying for financial support for full-time Neopagan clergy (the priesthood is essentially a volunteer job), but the idea fell on uninterested ears. In 1988 Bonewits was pursuing a goal of buying land and establishing an academically accredited Pagan seminary. [As of 2006, there are dozens of Pagan-owned land sanctuaries, and a few Pagan seminaries earning accreditation from the national accreditation agencies. Alas, ADF is not among them, though a couple of ADF groves own their own land. A few Neopagan clergy have managed to obtain employment via the Covenent of Unitarian Universalist Pagans (CUUPS) as UU ministers.][On July 23, 2004, Isaac was handfasted to ceremonial magician, Wiccan priestess, and early member of CUUPS, Ms. Phaedra Heyman. On December 7th of 2007, Isaac and Deborah were legally divorced and Isaac and Phaedra were wed on December 31, 2007. They now reside in Rockland County, New York, and have recently written a book together: Real Energy: Systems, Spirits, and Substances to Heal, Change, and Grow (New Page, March 2007).
In this episode of AADL Reads, we got to talk to Cecil Richards about her book, "Make Trouble: Standing Up, Speaking Out, and Finding the Courage to Lead" and also about some of her own favorite reads!
Stephen Mack Jones stopped by the studio to discuss a lot of books, including his own "Lives Laid Away"!
Software Engineering Radio - The Podcast for Professional Software Developers
Sam Procter of the SEI discusses architecture design languages, specifically Architecture Analysis and Design Language, and how we can leverage the formal modeling process to improve the security of our application design and improve applications overall.
Software Engineering Radio - The Podcast for Professional Software Developers
Sam Procter a researcher at the Software Engineering Institute of Carnegie Mellon University discusses Security in Software design. Justin Beyer spoke with Procter about Architecture Design Languages, specifically Architecture Analysis and Design Language (AADL) about what it is, how it can be used for security and privacy. Specifically, he discussed AADL, the tooling that is […]
Sarah Dessen, author of The Rest of the Story and SO MANY other YA novels, stopped and talked with us for a while about YA fiction, movie adaptations, and more!
Classifying errors in a component-based system is challenging. Components, and the systems that rely on them, can fail in myriad, unpredictable ways. It is nonetheless a challenge that should be addressed because component-based, software-driven systems are increasingly used for safety-critical applications. In this podcast, SEI researchers Peter Feiler and Sam Procter present the Architecture Analysis and Design Language (AADL) EMV2 Error Library, which is an established taxonomy that draws on a broad range of previous work in classifying system errors.
In this episode of AADL Reads, we got to talk with Brigit Young about her debut children's novel, Worth a Thousand Words. We also couldn't miss the opportunity to discuss the ever-controversial topic of movies that are better than the book (and more!)
In the first episode of AADL reads, we chatted with Sarah Vowell not only about her latest book, Lafayette in the Somewhat United States, but also about her relationship with reading, her go-to classics, and more!
Michelle Kuo, author of the memoir, Reading with Patrick, was kind enough to talk with us about her own writing, books that we would be shocked she loves, and also about what is currently on her reading list!
Episode three of Cut the Cliches, and host Liam Fitzpatrick is in Sydney to get the thoughts of Steve Sinha COO (and acting-CEO) of the Australian Alliance for Data Leadership. We chat with him back in the middle of winter, when we both had colds and England were still in the World Cup. Discussion topics ranged from his background, the role for agencies, the changing role for marketers, the rise of customer experience and what's next for AADL.
The woman the papers called "the pretty Michigan housewife" had never left the United States before planning her 1967 flight around the world. Not in a modern jet, but in a 30-year-old plane that had 14 previous owners, one crash landing, and most recently was set ablaze for firefighting practice. This was the plane 30-year-old Ann Pellegreno used to fly around the world, following the path charted by Amelia Earhart 30 years before. This is the story of the amazing Ann Pellegreno and her flight around the world. Music by Stepdad. This episode is part of the 2017 AADL Summer Game. There are sound effects in this episode that offer clues to questions on the AADL Summer Game site. Get the questions right and earn points and a special badge in the Summer Game. Learn more about Ann Pellegreno's flight around the world in the AADL archives.
This first Ann Arbor Stories walking tour is intended to be listened to while actually exploring a few city blocks in downtown Ann Arbor. It takes listeners from the corner of Huron and Fourth, outside the Embassy Hotel all the way to the corner of Liberty and Ashley and the C. Walker Building. There’s no right or wrong way to experience this story. Ideally, you’ll stroll along the same streets we’re talking about, looking at the same buildings we’re describing and letting your mind wander back in time. But you could still listen to this in your car or at home and check these sites out in person later. Use Google street view. We're not telling you how to consume your media. Music by Frontier Ruckus. Listener warning: This episode contains references to sex, pornography, murder, riots, death, ghosts, gay bars and bankers. For those of you who want to experience this podcast at ground level, a few tips: First, if you’re not standing at the corner of Huron and Fourth Street, then get there before you start the episode. This walking tour will take you from this point to the corner of Liberty and Ashley. It’s not a long walk, but you will have to cross some streets and some of the sidewalks might be busy so please please please keep your head up and be aware of your surroundings, as tempting as it may be to submit fully to my words and the siren of history. It’s often easier to see some of the taller buildings from the opposite side of the street, but it’s up to you on how you want to do this. Get up close to the building and touch the old brick, or step back and peer up into the sky. Maybe both. But watch out for cars and people - we're serious, we don’t want anyone getting hurt. One last thing. If it’s the summer of 2017 and you’re playing the AADL Summer Game, three of the locations on this walking tour have signs in the window that get into the history of those spots and have special game codes that can be inputted at play.aadl.org for points. Visit the AADL website and search for Ann Arbor Stories for more details. Go at your own pace. Pause, rewind, stop halfway through for a drink at a famous establishment. This is your walking tour, not ours. Enjoy.
Ann Arbor loves hosting dignitaries, celebrities and heads of state like any other Midwestern city. In 1966, Ann Arbor had the pleasure of hosting newly-elected Philippines President Ferdinand Marcos and his lovely wife Imelda. He wasn't a dictator yet. Hadn't murdered 3,257 of his own people. Tortured 35,000 more. That would come six years later. In 1966, when the president and his wife enjoyed lunch in the Michigan League, they still looked at him like Southeast Asia's JFK, rather than one of the most brutal modern-day dictators. Music by Ben Benjamin, courtesy of GhoLicense Parental listener warning: Contains references to torture, murder, beauty pageants and hidden World War II treasure. See photos from Ferdinand and Imelda Marcos' trip to Ann Arbor in the AADL archives
In this podcast, Peter Feiler describes a textual requirement specification language for the Architecture Analysis & Design Language (AADL) called ReqSpec. ReqSpec is based on the draft Requirements Definition and Analysis Language Annex, which defines a meta-model for requirement specification as annotations to AADL models. A set of plug-ins to the Open Source AADL Tool Environment (OSATE) toolset supports the ReqSpec language. Users can follow an architecture-led requirement specification process that uses AADL models to represent the system in its operational context as well as the architecture of the system of interest. ReqSpec can also be used to represent existing stakeholder and system requirement documents. Requirement documents represented in the Requirements Interchange Format can be imported into OSATE to migrate such documents into an architecture-centric virtual integration process. Finally, ReqSpec is an element of an architecture-led, incremental approach to system assurance. In this approach, requirements specifications are complemented with verification plans. When executed, these plans produce evidence that a system implementation satisfies the requirements. Listen on Apple Podcasts.
In 2013, the AADL Standards meeting was held at SEI headquarters in Pittsburgh, Pa. The SEI Podcast Series team was there, and we interviewed several members of the AADL Standards Committee. This podcast is the fourth in a series based on these interviews. Listen on Apple Podcasts.
Safety-critical systems, such as those used in avionics and the medical and aerospace domains, are becoming increasingly reliant on software. Malfunctions in these systems can have significant consequences, including mission failure and loss of life. As a result, they must be designed, verified, and validated carefully to ensure that they comply with system specifications and requirements. A car contains many electronic control units (ECUs)—today’s standard vehicles can contain up to 30 ECUs—that communicate to control systems such as airbag deployment, antilock brakes, and power steering. The design of tightly coupled software components distributed across so many nodes may introduce problems, such as early or late data delivery, loss of operation, or concurrent control of the same resource. In addition, errors introduced during the software design phase, such as mismatched timing requirements and values beyond boundaries, are propagated in the implementation and may not be caught by testing efforts. If these problems escape detection during testing, they can lead to serious errors and injuries. Also, because such systems are designed to be operational for many years, errors are often found when reviewing code from legacy systems designed and built more than 20 years ago and still operating, as in the avionics and aerospace domains. Unfortunately, late discovery of errors leads to major rework efforts and often postpones product delivery. Such issues are not specific to a particular domain and may occur in all in safety-critical systems. During the last 10 years, SEI researchers have been working on methods, languages, and tools to design safety-critical systems, find potential issues at the earliest phase in the development process, and avoid potential re-engineering efforts. Our techniques help system architects design the system and check requirements enforcement without having to implement the system. This webinar introduces the Architecture Analysis and Design Language (AADL), the architecture modeling language used to specify safety-critical systems. We show its use in the Open Source AADL Tool Environment (OSATE) to design and validate a generic automotive application—a speed-regulation system. In particular, this webinar will demonstrate analysis capabilities of the tool for different perspectives, including resources budgets, performance/latency, and safety.
Given that up to 70 percent of system errors are introduced during the design phase, stakeholders need a modeling language that will ensure both requirements enforcement during the development process and the correct implementation of these requirements. Previous work demonstrates that using the Architecture Analysis and Design Language (AADL) early in the development process not only helps detect design errors before implementation but also supports implementation efforts and produces high-quality code. Previous research has demonstrated how AADL can identify potential design errors and avoid propagating them through the development process. Verified specifications, however, are still implemented manually. This manual process is labor intensive and error prone, and it introduces errors that might break previously verified assumptions and requirements. For these reasons, code production should be automated to preserve system specifications throughout the development process. In this podcast, Julien Delange summarizes different perspectives on research related to code generation from software architecture models. Listen on Apple Podcasts.
In 2013, the AADL Standards meeting was held at SEI headquarters in Pittsburgh, Pa. The SEI Podcast Series team was there, and we interviewed several members of the AADL Standards Committee. This podcast is the third in a series based on these interviews. Listen on Apple Podcasts.
In this podcast, Julien Delange discusses two extensions to the Architecture Analysis and Design Language: the behavior annex and the error-model annex. The behavior annex represents the functional logic of AADL components and interacts with the other system elements. SEI researchers are currently participating in the ongoing improvements of this extension of the AADL by connecting it to other analysis tools. The error model annex augments the architecture description by specifying safety concerns of the system (error propagation, error behavior, etc.). The language is the foundation of new analysis tools that provide qualitative and quantitative assessment of system safety and reliability. SEI researches have defined new tools that analyze the model and produces safety validation documents, such as the one required by safety standard such as the SAE ARP4761. Listen on Apple Podcasts.
In 2013, the AADL Standards meeting was held at SEI headquarters in Pittsburgh, PA. The SEI Podcast Series team was there, and we interviewed several members of the AADL Standards Committee. This podcast is the second in a series based on those interviews. Listen on Apple Podcasts.
In 2013, the AADL Standards meeting was held at SEI headquarters in Pittsburgh, Pa. The SEI Podcast Series team was there, and we interviewed several members of the AADL Standards Committee. This podcast, with Peter Feiler and Etienne Borde of Télécom Paris Tech, is the first in a series based on these interviews. Listen on Apple Podcasts.
In this episode, Peter Feiler, primary author of the Architecture Analysis & Design Language (AADL) standard, discusses the latest changes to the standard, the second version of which was released in January 2009. First published in 2004 by SAE International, AADL is a modeling notation that employs both a textual and graphical representation to provide modeling concepts to describe the runtime architecture of application systems in terms of concurrent tasks, their interactions, and their mapping onto an execution platform. Development organizations use AADL to conduct lightweight, rigorous, yet comparatively inexpensive analyses of critical real-time factors such as performance, dependability, security, and data integrity. Listen on Apple Podcasts.
In this episode, Julien Delange and Peter Feiler discuss the latest developments with the Architecture Analysis and Design Language (AADL) standard. First published in 2004 by SAE International, AADL is a modeling notation that employs both a textual and graphical representation. AADL provides modeling concepts to describe the runtime architecture of application systems in terms of concurrent tasks, their interactions, and their mapping onto an execution platform. Development organizations use AADL to conduct lightweight, rigorous, yet comparatively inexpensive analyses of critical real-time factors such as performance, dependability, security, and data integrity. Listen on Apple Podcasts.
Andy & Dave talk with the AADL technology manager, Eli Neiburger about the future of libraries and their involvement in gaming. Yes, we also know the episode is more then an hour. Dave's call.