摘要：Web Information Systems (WIS) are becoming more and more ubiquitous along with the changes in information technology.There have already been several studies on modeling various aspects of WIS.This paper attempts to investigate the most recent paradigms of WIS description taking into account the Web service approaches,Service Oriented Architecture and Cloud computing.One of the modeling and analysis approaches is the Artifact Centric Business Process that unifies both the behavioural and information aspects of business processes carried out in a WIS environment.The information aspect frequently incorporates in the form of unstructured or semi-structured document that indirectly influences the content of the underlying database through several tiers of the given architecture.A business event stimulates a business process along with some set of data and triggers a process at the user interface level.The process initiates a chain of processes that goes through the tiers of architecture until the content of the database is affected.The Story Algebra,or more generally the Process Algebra approach provides a formal framework that promises a formal describing method for modeling precisely the event triggered processes coupled with data in document format.
其他摘要：Veb informacioni sistemi (WIS) sve više dobijaju na značaju usled novina u oblasti informacionih tehnologija.U dosadašnjoj literaturi je sprovedeno nekoliko istraživanja o modelovanju različitih aspekata WIS-a.Cilj ovog rada je da pokuša da istraži najčešće paradigme opisa WIS-a oslanjajući se na veb servise,servisno-orjentisanu arhitekturu i računarstvo u „oblaku“ (Cloud Computing).Jedan od pristupa modelovanju i analizi je poslovni proces orijentisan na dokumenta (Artifact centric business process) koji objedinjuje aspekte informacija i dinamičkog ponašanja procesa koji se odvijaju u WIS okruženju.Informacioni aspekt uključuje nestruktuirana ili polustrukturirana dokumenta koja neposredno utiču na sadržinu date baze podataka kroz nekoliko slojeva date arhitekture.Poslovni događaj aktivira poslovni proces podsredstvom nekog skupa podataka i započinje proces na nivou korisničkog interfejsa.Proces inicira lanac procesa koji se kreće kroz slojeve arhitekture sve dok se ne izmeni sadržaj baze podataka.Algebra „priče“ (Story Algebra) ili šire Algebra procesa (Process Algebra) nudi okvir koji daje formalni metod za opisivanje modelovanja tačno onih procesa koji su aktivirani događajima praćenim podacima u dokumentovanom formatu.
关键词：Web Information System;Artifact Centric Process and Data Modeling;Story Algebra;Process Algebra.
其他关键词：veb informacioni sistem;proces orijentisan na dokumenta;modelovanje podataka;algebra priče;algebra procesa.
