AT&T Technical Journal - new TOC TOC Alert for Publication# 6731003
- Visualizing corporate datael abril 30, 2014 a las 7:36 pm
Visualization is an emerging technology for understanding large, complex, information-rich data sets. Just as spreadsheets revolutionized our ability to understand small amounts of data, visualization is revolutionizing the way we understand large data sets. AT&T has developed a suite of applications, based on a common software infrastructure, to analyze strategic data sets and solve key business problems. Even as these software tools are being used internally, AT&T is also selling them in the commercial marketplace. The four case studies presented in this paper demonstrate the technology's general applicability and its use within AT&T to address strategic business problems and motivate its guiding research principles.
- Scoping software projectsel abril 30, 2014 a las 7:36 pm
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.
- Forewordel abril 30, 2014 a las 7:36 pm
In the May 1995 issue of the AT&T Technical Journal, which focused on the 1B processor. I wrote about the importance of sharing success stories across the R&D community. Nowhere is this more important than in the area of software development. Software is part of virtually all of AT&T's products and services and is the preeminent integrating technology.
- Usability and self-service information technology: Cognitive engineering in product design and evaluationel abril 30, 2014 a las 7:36 pm
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.
- Architecture styles and services: An experiment involving the signal operations platforms-provisioning operations systemel abril 30, 2014 a las 7:36 pm
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.