Evolution of Earth Observation Online Data Access

With the Heterogeneous Missions Accessibility (HMA) initiative, the OGC standard “Web Coverage Service (WCS) Earth Observation Application Profile” has been developed to harmonize online access to very large primary Earth Observation data holdings. Although its use in web mapping servers has proven valuable capabilities, this standard is not yet widely adopted. Its acceptance for data download by end users is hampered by the lack of interpretation guidelines and its complexity requiring considerable server and client implementation efforts. In this context, the project “Evolution of EO Online Data Access Services” funded by the European Space Agency (ESA) and presented in this paper analyses relevant scenarios and technologies for data publication and access, identifies potential for improvements of standards and their implementations, prototypes and evaluates selected improvements and proposes standard extensions for future releases. We hope hereby to considerably improve the acceptance of online EO data access services and standards and to promote their evolution and diffusion

UTILIZING PATTERNS IN DEVELOPING DESIGN THEORIES

Aside from specialized design artifacts solving \u27wicked\u27 problems in a distinct organizational context, prescriptive (design) theories for solving classes of problems are well-accepted results of design science research. Especially for intricate problem fields, as IT service management or EA management, the development of such theories remains a highly complex research endeavor spanning a longer period of time. In this paper, we discuss how patterns, i.e. practice-proven, re-usable solutions to recurring problems, can be used to ease the establishment of a design theory, and to provide practice-relevant intermediary results prior to theory completion

The relevance of model-driven engineering thirty years from now

International audienceAlthough model-driven engineering (MDE) is now an established approach for developing complex software systems, it has not been universally adopted by the software industry. In order to better understand the reasons for this, as well as to identify future opportunities for MDE, we carried out a week-long design thinking experiment with 15 MDE experts. Participants were facilitated to identify the biggest problems with current MDE technologies, to identify grand challenges for society in the near future, and to identify ways that MDE could help to address these challenges. The outcome is a reflection of the current strengths of MDE, an outlook of the most pressing challenges for society at large over the next three decades, and an analysis of key future MDE research opportunities

ENTERPRISE ARCHITECTURE MANAGEMENT FROM A KNOWLEDGE MANAGEMENT PERSPECTIVE – RESULTS FROM AN EMPIRICAL STUDY

Within the context of EAM numerous approaches proposed by researches exist. Still, it is not easy for companies to choose the most suitable one from the multitude of architecture frameworks and methods. Additionally trends in the global economy and the resulting pressure on the part of competitors force companies to introduce more effective management processes. As a consequence, EAM faces the similar challenge as that of knowledge management that is identifying, collecting and maintaining process-specific information in an efficient way. This research article addresses the aforementioned challenge by identifying weaknesses of existing approaches to enterprise architecture management and proposing future areas of research. Thereby, the future research topics are identified in two steps. Firstly, an extensive literature analysis from a knowledge management perspective derives hypotheses on possible fields for improvement and future research. These hypotheses are evaluated according to their relevance in practice in an online survey conducted among enterprise architecture management practitioners from companies belonging to various industry branches in Europe