AT&T Tech. J.Pub Date : 1900-01-01DOI: 10.15325/ATTTJ.1996.6772886
Stephen Chen, T. S. Chow
{"title":"Information technology - Best practices in design and development","authors":"Stephen Chen, T. S. Chow","doi":"10.15325/ATTTJ.1996.6772886","DOIUrl":"https://doi.org/10.15325/ATTTJ.1996.6772886","url":null,"abstract":"In the foreword to this issue of the AT&T Technical Journal, Dan Stanzione reiterates the need for sharing best practices across the company, especially in the area of software development. Software is the key integrating element in information technology (IT). Although definitions abound, IT is used here to describe the set of technologies employed in the design, development, and deployment of information systems.","PeriodicalId":135932,"journal":{"name":"AT&T Tech. J.","volume":"57 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122074090","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
AT&T Tech. J.Pub Date : 1900-01-01DOI: 10.15325/ATTTJ.1996.6772890
R. Sulgrove
{"title":"Scoping software projects","authors":"R. Sulgrove","doi":"10.15325/ATTTJ.1996.6772890","DOIUrl":"https://doi.org/10.15325/ATTTJ.1996.6772890","url":null,"abstract":"The key to risk management is to be as complete as possible in identifying project risks. This paper discusses the project-scoping process, which is being successfully used by software developers at AT&T Global Information Solutions. Project scoping is a method or process used for identifying and assessing risks to determine a project's feasibility. Lists of requirement categories and risk factors are provided as facilitating tools. Project scoping provides a basis for defining a less risky project and for redefining or discontinuing projects that are too risky. The project-scoping process also provides a basis for continuously monitoring risks during development to detect emerging problems at the earliest possible moment — while there is still time to take effective corrective action. Thus, project management can focus on development problems in addition to tracking schedule compliance. The bottom line is that by implementing project scoping, management has better control over a project.","PeriodicalId":135932,"journal":{"name":"AT&T Tech. J.","volume":"15 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129724532","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
AT&T Tech. J.Pub Date : 1900-01-01DOI: 10.15325/ATTTJ.1996.6772893
G. Johnson, Mark G. Westwater
{"title":"Usability and self-service information technology: Cognitive engineering in product design and evaluation","authors":"G. Johnson, Mark G. Westwater","doi":"10.15325/ATTTJ.1996.6772893","DOIUrl":"https://doi.org/10.15325/ATTTJ.1996.6772893","url":null,"abstract":"Self-service products such as automatic teller machines are becoming more complex as they support new services, are being used in new environments, and employ new technologies. End-users' expectations of self-service products also are being raised as they gain more experience with interactive technologies. This paper describes the cognitive engineering activities of self-service information technology, including end-user perceptions, performance, and satisfaction. Such issues as specifying usability at concept stages, integrating prototype evaluations, and incorporating design recommendations also are discussed. In addition, the paper presents practical methods to design self-service products, including heuristic usability evaluations, “Wizard of Oz” investigations, and formal task-based evaluations. The paper also draws upon a number of usability studies conducted by self-service product and advanced technology developers.","PeriodicalId":135932,"journal":{"name":"AT&T Tech. J.","volume":"114 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122006686","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
AT&T Tech. J.Pub Date : 1900-01-01DOI: 10.15325/ATTTJ.1996.6772891
D. S. Yochum, Elaine P. Laws, Gretchen K. Barlow
{"title":"An integrated human resources approach to moving information technology professionals toward best in class","authors":"D. S. Yochum, Elaine P. Laws, Gretchen K. Barlow","doi":"10.15325/ATTTJ.1996.6772891","DOIUrl":"https://doi.org/10.15325/ATTTJ.1996.6772891","url":null,"abstract":"Software is integral to every part of AT&T's business. More than 30,000 company employees are involved in some aspect of software development. Until recently, however, the AT&T information technology (IT) population was not recognized and supported as a professional community. In 1994, this situation began to change when a group called the People Team was established as part of a larger initiative to address AT&T's software competitiveness. The team comprised technical managers and human resources (HR) professionals appointed by the AT&T business units and divisions. Its objective was to develop different approaches to migrating the IT community to best-in-class HR practices. To guide its work, the People Team benchmarked HR practices for software professionals in selected high-technology companies. Key outputs from the team included a curriculum guide, recruiting and staffing strategies, and reward and recognition practices. Thus, AT&T software professionals are now better able to keep their technical knowledge and skills up to date and remain prepared for technology changes as they occur. In addition, AT&T's future leadership in IT and software development is ensured.","PeriodicalId":135932,"journal":{"name":"AT&T Tech. J.","volume":"71 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127386739","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
AT&T Tech. J.Pub Date : 1900-01-01DOI: 10.15325/ATTTJ.1996.6772889
Nelson R. Deutschen, E. Bowers, Jerry W. Lankford
{"title":"ASCC: The impact of a Silver Bullet","authors":"Nelson R. Deutschen, E. Bowers, Jerry W. Lankford","doi":"10.15325/ATTTJ.1996.6772889","DOIUrl":"https://doi.org/10.15325/ATTTJ.1996.6772889","url":null,"abstract":"The AT&T Network Systems Silver Bullet Project, launched in August 1990, represents a major breakthrough in software engineering. It optimizes and accelerates the software development process by incrementally improving business, organizational, and technical processes used by the Operations Systems (OS) Business Unit. In July 1991 OS opened the Advanced Software Construction Center (ASCC) to define and implement an organizational and business model based on the Silver Bullet processes and to expose the model to the stresses of developing products for OS. Since then, the ASCC has developed more than 14 products, achieved International Organization for Standardization (ISO) 9001 certification, and reduced its average product interval from 25 to 15 weeks. It has also been evaluated as one of the top three software organizations in AT&T, based on software process assessments. All this was achieved while keeping its costs one-third lower than the rest of the business unit. The application of the Silver Bullet processes to the OneOS Change Program — an AT&T initiative to create an integrated set of OS assets that can be delivered as an integrated product offering — illustrates the applicability of these processes to larger, more complex systems and organizations. This paper traces the evolution of the ASCC, describes how it operates today, and provides current measures of the interval and quality of ASCC software development.","PeriodicalId":135932,"journal":{"name":"AT&T Tech. J.","volume":"112 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131698978","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
AT&T Tech. J.Pub Date : 1900-01-01DOI: 10.15325/ATTTJ.1996.6772888
J. Moreland, Eileen M. Sieli, Maria Socratous, S. Udovic
{"title":"Small-team development in a competitive environment","authors":"J. Moreland, Eileen M. Sieli, Maria Socratous, S. Udovic","doi":"10.15325/ATTTJ.1996.6772888","DOIUrl":"https://doi.org/10.15325/ATTTJ.1996.6772888","url":null,"abstract":"The telecommunications industry is undergoing rapid and continuous change. To be successful in today's dynamic market, competitors must quickly identify and embrace new opportunities. Fortunately, companies have at their disposal enormous amounts of data and high-speed computers that can help them analyze opportunities and hasten their entry into new markets. Unfortunately, the software needed to support these efforts takes precious time to design and develop. Traditional software development methodologies might not suffice in such a fast-paced environment. Thus, alternatives are needed to shorten response time and provide greater flexibility to market-driven changes. This paper discusses AT&T's successes with a small-team approach to software development. Rather than maintaining separate functional organizations having well-defined roles and responsibilities, a single, closely knit team is established consisting of customers, systems engineers, and developers. The team's overarching goal is to help AT&T customers solve business problems as quickly as possible.","PeriodicalId":135932,"journal":{"name":"AT&T Tech. J.","volume":"26 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124916116","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
AT&T Tech. J.Pub Date : 1900-01-01DOI: 10.15325/ATTTJ.1996.6772892
David G. Belanger, Y. Chen, Neal R. Fildes, B. Krishnamurthy, P. H. Rank, Kiem-Phong Vo, Terry E. Walker
{"title":"Architecture styles and services: An experiment involving the signal operations platforms-provisioning operations system","authors":"David G. Belanger, Y. Chen, Neal R. Fildes, B. Krishnamurthy, P. H. Rank, Kiem-Phong Vo, Terry E. Walker","doi":"10.15325/ATTTJ.1996.6772892","DOIUrl":"https://doi.org/10.15325/ATTTJ.1996.6772892","url":null,"abstract":"The process of designing vertically integrated applications is enhanced if the distinct architectures, or architecture styles, and relevant performance constraints and interactions can first be identified. Applications, although running in varied environments, also may require specific architecture services, non-operational features such as portability or fault-tolerance that might be common across several architectural styles. The application design process should be an iterative exercise of first understanding system requirements and then determining how they may be partitioned according to styles and services. An integral part of this process is to identify software components and subsystems that must be developed or can be reused from other systems. This paper describes a design-partitioning process applied to the new Signal Operations Platforms-Provisioning (SOP-P) operations system. The experiment shows that it is feasible to identify large design components confined within a few architecture styles that are common to network management and operations software.","PeriodicalId":135932,"journal":{"name":"AT&T Tech. J.","volume":"190 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129008583","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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