<p>Databases nowadays used in all kinds of application areas often differ greatly in a number of properties. These varieties add complexity to the handling of databases, especially when two or more different databases are dependent.</p><p>The approach described here to propagate updates in an application scenario with heterogeneous, dependent databases is the use of a rule-based mediator. The system EruS (ECA rules updating SCOP) applies active database technologies in a bioinformatics scenario. Reactive behaviour based on rules is used for databases holding protein structures.</p><p>The inherent heterogeneities of the Structural Classification of Proteins (SCOP) database and the Protein Data Bank (PDB) cause inconsistencies in the SCOP data derived from PDB. This complicates research on protein structures.</p><p>EruS solves this problem by establishing rule-based interaction between the two databases. The system is built on the rule engine ruleCore with Event-Condition-Action rules to process PDB updates. It is complemented with wrappers accessing the databases to generate the events, which are executed as actions. The resulting system processes deletes and modifications of existing PDB entries and updates SCOP flatfiles with the relevant information. This is the first step in the development of EruS, which is to be extended in future work.</p><p>The project improves bioinformatics research by providing easy access to up-to-date information from PDB to SCOP users. The system can also be considered as a model for rule-based mediators in other application areas.</p>

<p>In recent times companies have been forced to become more and more digitalized in order to spread company information and facilitate communication with clients, con-sumers and their own employees. The knowledge to integrate software and launch the company into the digital world cannot always be found within the company itself. Therefore, companies often resort to employing consulting companies to enable this for them. Because of copyright, the software created does not solely belong to the employing company – the intellectual property rights automatically stay with the con-sulting company that made it.</p><p>When the consulting company omits details concerning intellectual property rights in the employment contract, the standard rules in the Swedish Copyright Act and the international directives kick in and give the consulting company the full rights to the programmes that it has created – with a few exceptions. The employing company may only alter the software in order to ensure that it is fully compatible with the al-ready existing programmes it utilises and the operating system it uses. Even reverse engineering is permitted as long as the information gathered is only used for ensuring the compatibility.</p><p>Information in databases is protected as it is creatively arranged in systematic or me-thodical way by the one that has made a substantial investment in obtaining, verifying or presenting the information. The substantial investment depends on the one that has taken the risk of investing in the particular database. As databases are rarely made by consulting companies on behalf of a client, and the rules are sufficiently clear as to whom the ownership of the database is, there are few questions concerning data-bases. Because of this, the assumption would be that the current legislation is work-ing properly.</p><p>One of the more troubling issues in regards to copyright is that even though reverse engineering is illegal, proving infringement comes down to evidence and what parts that are quantitatively or qualitatively significant in the original programme. Cur-rently, there is no registry of copyrighted works in Sweden and so there is not telling who made the programme first if the work happens to spread. The creators of soft-ware have expressed concern and allegedly lobbied for a new directive giving more protection to the original creators. The culmination of the lobby work was the Soft-ware Patent Directive, which proposed that software should be seen as an invention and therefore eligible for patenting. However, there were many reasons as to why software should not be patented, most notably increased cost and the years of wait-ing for the patent grant, and the directive was rejected. Still, the concerns persisted and no greater protection has been given to the creators of software.</p>

<p>Syftet med arbetet som beskrivs i denna rapport var att undersöka om den Oracle-baserade laborationsmiljö som användes hos ADIT gick att överföra till MySQL. Oracle är ett komplext system som är krävande att administrera, något som ADIT ansvarat för med egen personal och egen hårdvara och detta var inte idealiskt. I kombination med ett stort intresse från studenter att använda just MySQL vid laborationer hos ADIT beslutades det att man skulle undersöka om MySQL nu var moget att axla den roll som Oracle tidigare haft. Utifrån detta går rapporten igenom vad som behövde göras med det befintliga laborationsmaterialet. En introduktion till relations¬modellen och SQL samt förklaringar av skillnader i features mellan Oracle och MySQL som hade betydelse för laborationerna återfinns också. Det visade sig att överföringen var enkel att göra och sist i rapporten sammanställs våra erfarenheter.</p>

Thesis (M. Sc(Computer Science))--University of Pretoria, 2009. / Includes bibliographical references (leaves [180]-191).

Thesis (M.S.)--Naval Postgraduate School, 2002. / Thesis advisor(s): Dale Courtney, Dan Boger. Includes bibliographical references (p. 79-80). Also available online.

Thesis (M.S.)--Kutztown University of Pennsylvania, 2000. / Source: Masters Abstracts International, Volume: 45-06, page: 3187. Typescript. Abstract precedes thesis as preliminary leaf. Includes bibliographical references (leaves 75-76).

Thesis (M.S.)--Brigham Young University. Dept. of Computer Science, 2004. / Includes bibliographical references (p. 47-50).

Thesis (M. Sc.)--University of Canterbury, 2008. / Typescript (photocopy). "October 2008." Includes bibliographical references (p. [81]-85). Also available via the World Wide Web.

Thesis (M. Phil.)--University of Hong Kong, 2002. / Includes bibliographical references.

Thesis (Ph. D.)--University of Hong Kong, 2002. / Includes bibliographical references (leaves 69-72).