Erik, stupend work, very easy of reading. It is good stuff to introduce openEHR to clinicians, easy to read , fantastic examples. I?m sure your defense will be brilliant! Cheers Jussara R?tzsch MD, MSc Director, OpenEHR Foundation Owner, Giant Global Graph ehealth Solutions
On Thu, Jan 31, 2013 at 11:42 PM, <richardh at iinet.net.au> wrote: > I have been following OpenEHR for some time > Have found it difficult to get a grasp > This Thesis is easy to read and clarifies a lot of points for me > Interesting ideas > Well done! > > Richard Hosking > > > ----- Original Message ----- > From: > "For openEHR clinical discussions" <openehr-clinical at lists.openehr.org> > > To: > "For openEHR clinical discussions" <openehr-clinical at lists.openehr.org> > Cc: > "For openEHR technical discussions" <openehr-technical at lists.openehr.org>, > "For openEHR implementation discussions" > <openehr-implementers at lists.openehr.org> > Sent: > Wed, 30 Jan 2013 17:24:59 +0000 > Subject: > Re: PhD thesis online: Scalability and Semantic Sustainability in Electronic > Health Record Systems > > > > Erik, > > Congrats, it must feel really nice to be able to reach this point. Best of > luck for the defense :) > > Best regards > Seref > > > On Sun, Jan 27, 2013 at 3:44 PM, Erik Sundvall <erik.sundvall at liu.se> > wrote: >> >> Hi! >> >> My thesis entitled "Scalability and Semantic Sustainability in Electronic >> Health Record Systems" is now available online. It contains many >> openEHR-related papers and discussions (see abstract included below). >> >> Permanent link to electronic version of the thesis: >> http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-87702 >> >> Public PhD defence will be held the 15:th of February, in Link?ping, >> Sweden. Faculty opponent: prof. Dipak Kalra, UCL. >> Temporary event-information page: http://www.imt.liu.se/~erisu/2013/phd/ >> (That page also contains a form where you have the possibility to indicate >> interest in online participation or in getting a recording.) >> >> Best regards, >> Erik Sundvall >> erik.sundvall at liu.se http://www.imt.liu.se/~erisu/ Tel: +46-13-286733 >> >> Abstract >> This work is a small contribution to the greater goal of making software >> systems used in healthcare more useful and sustainable. To come closer to >> that goal, health record data will need to be more computable and easier to >> exchange between systems. >> Interoperability refers to getting systems to work together and semantics >> concerns the study of meanings. If Semantic interoperability is achieved >> then information entered in one information system is usable in other >> systems and reusable for many purposes. Scalability refers to the extent to >> which a system can gracefully grow by adding more resources. Sustainability >> refers more to how to best use available limited resources. Both aspects are >> important. >> >> The main focus and aim of the thesis is to increase knowledge about how to >> support scalability and semantic sustainability. It reports explorations of >> how to apply aspects of the above to Electronic Health Record (EHR) systems, >> associated infrastructure, data structures, terminology systems, user >> interfaces and their mutual boundaries. >> >> Using terminology systems is one way to improve computability and >> comparability of data. Modern complex ontologies and terminology systems can >> contain hundreds of thousands of concepts that can have many kinds of >> relationships to multiple other concepts. This makes visualization >> challenging. Many visualization approaches designed to show the local >> neighbourhood of a single concept node do not scale well to larger sets of >> nodes. The interactive TermViz approach described in this thesis, is >> designed to aid users to navigate and comprehend the context of several >> nodes simultaneously. Two applications are presented where TermViz aids >> management of the boundary between EHR data structures and the terminology >> system SNOMED CT. >> >> The amount of available time from people skilled in health informatics is >> limited. Adequate methods and tools are required to develop, maintain and >> reuse health-IT solutions in a sustainable way. Multiple levels of modelling >> including a fixed reference model and another layer of flexible reusable >> ?archetypes? for domain specific data structures, is an approach with that >> aim used in openEHR and the ISO 13606 standard. This approach, including >> learning, implementing and managing it, is explored from different angles in >> this thesis. An architecture applying Representational State Transfer (REST) >> to archetype-based EHR systems, in order to address scalability, is >> presented. Combined with archetyping this architecture also aims at enabling >> a sustainable way of continuously evolving multi-vendor EHR solutions. An >> experimental open source implementation of it, aimed for learning and >> prototyping, is also presented. >> >> Manually changing database structures used for storage every time new >> versions of archetypes and associated data structures are needed is likely >> not a sustainable activity. Thus storage systems that can handle change with >> minimal manual interventions are desirable. Initial explorations of >> performance and scalability in such systems are also reported. >> >> Graphical user interfaces focused on EHR navigation, time-perspectives and >> highlighting of EHR content are also presented ? illustrating what can be >> done with computable health record data and the presented approaches. >> >> Desirable aspects of semantic sustainability have been discussed, >> including: sustainable use of limited resources (such as available time of >> skilled people), and reduction of unnecessary risks. A semantic >> sustainability perspective should be inspired and informed by research in >> complex systems theory, and should also include striving to be highly aware >> of when and where technical debt is being built up. Semantic sustainability >> is a shared responsibility. >> >> The combined results presented contribute to increasing knowledge about >> ways to support scalability and semantic sustainability in the context of >> electronic health record systems. Supporting tools, architectures and >> approaches are additional contributions. >> >> _______________________________________________ >> openEHR-clinical mailing list >> openEHR-clinical at lists.openehr.org >> >> http://lists.openehr.org/mailman/listinfo/openehr-clinical_lists.openehr.org > > > > _______________________________________________ > openEHR-clinical mailing list > openEHR-clinical at lists.openehr.org > http://lists.openehr.org/mailman/listinfo/openehr-clinical_lists.openehr.org
