Source:http://linkedlifedata.com/resource/pubmed/id/11604836
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| Predicate | Object |
|---|---|
| rdf:type | |
| lifeskim:mentions | |
| pubmed:issue |
Pt 1
|
| pubmed:dateCreated |
2001-10-17
|
| pubmed:abstractText |
A strategy and toolset (FixIT) for migrating a specific type of legacy systems--based on the FileMan DBMS of the U.S. Department of Veterans Affairs--to a two-tier client/server and web browser-based architecture was presented in MEDINFO'98. In the current paper we discuss the further migration to a multitier software component architecture. A literature survey and industry contacts were used to specify an open, component-based target architecture for healthcare information systems to be reached by the year 2005, as well as a phased migration strategy from the present FileMan/FixIT-based systems towards the target. The target architecture is based on large-grained business components and accommodates heterogeneous elements on the intra-component, intra-application, intra-organization and inter-organizational levels. Four logical tiers are identified within a business component. Three migration paths are specified for different cases: the tier-by-tier, piece-by-piece, and web-wrapping paths. It is argued that the architecture, supported by off-the-shelf toolsets, application frameworks and a new software development process, makes it possible to turn legacy systems into a valuable asset, split monolithic applications into reusable components, and ultimately replace the legacy parts at a feasible pace
|
| pubmed:language |
eng
|
| pubmed:journal | |
| pubmed:citationSubset |
IM
|
| pubmed:status |
MEDLINE
|
| pubmed:issn |
0926-9630
|
| pubmed:author | |
| pubmed:issnType |
Print
|
| pubmed:volume |
84
|
| pubmed:owner |
NLM
|
| pubmed:authorsComplete |
Y
|
| pubmed:pagination |
745-9
|
| pubmed:dateRevised |
2008-7-10
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| pubmed:meshHeading | |
| pubmed:year |
2001
|
| pubmed:articleTitle |
From legacy and client/server systems to components in healthcare information systems in Finland.
|
| pubmed:affiliation |
Computing Centre, University of Kuopio, 70211 Kuopio, Finland. Juha.Mykkanen@uku.fi
|
| pubmed:publicationType |
Journal Article,
Research Support, Non-U.S. Gov't
|