Projektübergreifendes Management - Der strategische Applikationslebenszyklus am Beispiel des BMW Q-Cockpit

Zusammenfassung: Oft scheitern oder verzögern sich Softwareprojekte, weil die Veränderungsfähigkeit des Unternehmens überschätzt wird und zu viele Zielsetzungen gleichzeitig verfolgt werden. Basierend auf den Erkenntnissen aus einem Entwicklungsprojekt bei der BMW Group werden die Ziele für eine nachhaltige Softwareentwicklung und -einführung anhand eines strategischen Applikations-Lebenszyklus (SALZ) auf vier Evolutionsphasen verteilt. Diese verzahnte Entwicklung von Software und Geschäftsprozessen ist der Schlüssel für ein nachhaltiges und erfolgreiches Business-IT-Alignment (BITA) auf der Applikationsebene

The Seventh Data Release of the Sloan Digital Sky Survey

This paper describes the Seventh Data Release of the Sloan Digital Sky Survey (SDSS), marking the completion of the original goals of the SDSS and the end of the phase known as SDSS-II. It includes 11663 deg^2 of imaging data, with most of the roughly 2000 deg^2 increment over the previous data release lying in regions of low Galactic latitude. The catalog contains five-band photometry for 357 million distinct objects. The survey also includes repeat photometry over 250 deg^2 along the Celestial Equator in the Southern Galactic Cap. A coaddition of these data goes roughly two magnitudes fainter than the main survey. The spectroscopy is now complete over a contiguous area of 7500 deg^2 in the Northern Galactic Cap, closing the gap that was present in previous data releases. There are over 1.6 million spectra in total, including 930,000 galaxies, 120,000 quasars, and 460,000 stars. The data release includes improved stellar photometry at low Galactic latitude. The astrometry has all been recalibrated with the second version of the USNO CCD Astrograph Catalog (UCAC-2), reducing the rms statistical errors at the bright end to 45 milli-arcseconds per coordinate. A systematic error in bright galaxy photometr is less severe than previously reported for the majority of galaxies. Finally, we describe a series of improvements to the spectroscopic reductions, including better flat-fielding and improved wavelength calibration at the blue end, better processing of objects with extremely strong narrow emission lines, and an improved determination of stellar metallicities. (Abridged)Comment: 20 pages, 10 embedded figures. Accepted to ApJS after minor correction

EXPLORING THE SHADOWS: IT GOVERNANCE APPROACHES TO USER-DRIVEN INNOVATION

Information Systems (IS) researchers traditionally have the assumption that Information Technology (IT) innovations are conceived within the IT department. Developments like ubiquitous computing, web services and the emerging culture of digital natives challenge this foundational assumption as they enable individuals to implement their own IT innovations quickly. Placing such empowered individuals into a strictly regulated IT environment will drive them away from the IT department and towards their own IT solutions and inevitably to non-compliance. Such user- or business-driven solutions are not necessarily the result of strict policies or limited user rights but may be caused by the inability of the IT department to fulfil business needs. The phenomenon of user-driven fulfilment of requirements is called Shadow IT (SIT). While receiving very limited scholarly attention, SIT is a widespread challenge amongst IT departments. We employ a triangulation approach using three independent data sources to address this phenomenon within the three domains of IS research, IS Security (ISsec), IT Governance (ITG) and Business IT Alignment (BITA). Our findings suggest that practitioners follow three different ITG approaches to SIT based on their business or IT strategy: IT-control, user-oriented and user-driven