In this thesis, we provide a overview of Web Services and ebXML. We discuss that mobile computing is the future trend of the networks. From kinds of new technologies, we choose Web Services and ebXML as the candidates of the future network trends. 　In Web Services, there are three components：SOAP, UDDI, and WSDL. SOAP is a message exchange protocol, UDDI is a repository of service profiles, and WSDL is the language that describes the contents of the services. The three components constitute a complete Web Services infrastructure. This thesis maps Web Services into Internet and explains how this infrastructure works.EbXML, founded by UN/CEFACT and OASIS, will be a new standard for business processes. It establishes common business process in order to let business partners do transactions more easily. 　This thesis combines the two technologies above mentioned to create a new business network environment. This new environment will reduce cost, increase effectiveness, and improve communications abilities. We provide a simple demo system to show the concepts and hope this thesis will be a better reference for readers.

Bachelor-Arbeit Univ. St. Gallen, 2007.

To effectively use Web services, providers and consumers need to be connected by a registry. Several registry solutions exist today, including UDDI and WSIL. Also, many organizations simply use Web pages to list available Web services and their descriptions. This research describes a microformat for representing Web service description documents. These microformatted documents can be converted back to the original format for use by machines. They can also contain additional information, making them more useful to people. A registry, allowing indexing and searching of microformatted service descriptions, is also described. The benefits of this solution include: using existing standards; allowing customization of presentation for people; allowing existing search tools to find descriptions; and providing for future, context-based searching to make locating Web services even easier.

Workshop Mensch-Computer-Vernetzung Übersicht über die technischen Grundlagen von Web Services Abgrenzung zu anderen RPC-Mechanismen Beispiele für Beschreibungssprachen

Introduction Web Services is a relatively new concept to distributed data systems. It provides a new way for companies to easily integrate with other companies. With UDDI, companies are able to host their services in a wider market and also connect to other companies. However, with business expansion also follows trust issues. In order to share Web Services in a business partner relationship it is necessary to have a relation of trust. Purpose The purpose of this thesis is to investigate about this issue, i.e. how Web Services with the use of UDDI can be made as a “network of trust” and additionally obtain an idea about how the use of these two will look like in the future. The question of trust between partners sharing Web Services is still open. There has therefore been an interest to look at this problem. The aim for this thesis is to find possible solutions that can be used to address the problem. Method To investigate this we chose to do a literature study and continue with a survey consisted by interviews and questionnaires. Interviews were used to find which solutions that are available in reality and the questionnaires provide information about to what extent Web services and the found solutions are used. The questionnaire was done on random Swedish companies and was sent by e-mails. The interviews were done on two global Swedish companies, Volvo and Ericsson. This way information was found and could be compared in how the issue is dealt with in the literature and what is actually done in reality. Conclusion The outcome of the entire investigation is that Web Services today, even though it exists in most companies, is still in testing phase. As for this, the use of UDDI has had little attention and so has the issues regarding trust. The solution we found to the most applicable to create a network of trust is the Liberty Alliance Project. Web Services, UDDI, trust / Web Services är ett relativt nytt concept vad gäller distribuerade system. Det skapar ett nytt sätt att integrera mellan företag. Med UDDI så kan företag registerar sina tjänster på en bredare marknad och kan även ansluta sig till andra tjänster och företag. När dessa tjänster (Web Services) delas i affärspartners syfte så är det nödvändigt att företagen har en pålitlig relation. Problemet är om denna pålitlighet finns i företagen, vilket är utforskat i denna uppsats.

The Internet became a standard way of exchanging business data between B2B and B2C applications and with this came the need for providing various services on the web instead of just static text and images. Web services are a new type of services offered via the web that aid in the creation of globally distributed applications. Web services are enhanced e-business applications that are easier to advertise and easier to discover on the Internet because of their flexibility and uniformity. In a real life scenario it is highly difficult to decide which J2EE application server to go for when deploying a enterprise web service. This thesis analyzes the various ways by which web services can be developed & deployed. Underlying protocols and crucial issues like EAI (enterprise application integration), asynchronous messaging, Registry tModel architecture etc have been considered in this research. This paper presents a report by analyzing what various J2EE application servers provide by doing a case study and by developing applications to test functionality.

Τόσο τα Web Services (WS) όσο και τα P2P Συστήματα, δύο ακμάζουσες μορφές της πληροφορικής και του Διαδικτύου, έχουν τύχει ευρείας αποδοχής στις μέρες μας. Τα Napster, Gnutella και LimeWire, αποτελούν λίγες μόνο από τις υλοποιήσεις της τεχνολογίας των P2P Συστημάτων. Από την άλλη τα WS ακμάζουν στον χώρο των επιχειρήσεων και του επιχειρηματικού σχεδιασμού με κατεύθυνση το Internet. Τα e-Bay, Amazon και Microsoft είναι μόνο λίγες από τις εταιρείες που κάνουν ευρεία χρήση των τεχνολογιών των WS. Μέχρι σήμερα οι δύο αυτές τεχνολογίες αναπτύσσονται σχεδόν ξεχωριστά η μία από την άλλη. Το κίνητρο το οποίο ενέπνευσε αυτή την εργασία, ήταν η ύπαρξη του UDDI κεντρικού καταλόγου για την αναζήτηση και εκτέλεση των WS. Ο τρόπος υλοποίησής και λειτουργίας του UDDI καταλόγου, επιφέρει ένα σημαντικό μειονέκτημα, την κεντρικοποίηση του ίδιου του UDDI καταλόγου και την πλήρη απουσία κατανομής του. Τοποθετώντας, όλη την πληροφορία σε ένα σημείο, πολύ γρήγορα μπορούν να εμφανιστούν προβλήματα bottleneck και επομένως κατακόρυφης πτώσης της απόδοσης ενός συστήματος. Βασικός στόχος επομένως, είναι πώς θα μπορούσε ο UDDI κατάλογος να κατανεμηθεί ώστε να βελτιωθούν οι χρόνοι ανακάλυψης και εκτέλεσης των WS που βρίσκονται σε αυτόν. Στην προσπάθεια αυτή συγκαταλέγεται η λειτουργικότητα και η δομή των P2P Συστημάτων, ως κατανεμημένων δομών. Στην παρούσα Μεταπτυχιακή εργασία έγινε μια προσπάθεια συγκερασμού των τεχνολογιών των P2P Συστημάτων και των WS, ώστε εξάγοντας τα πλεονεκτήματα από το καθένα, κατασκευάστηκε ένα P2P Σύστημα το οποίο μπορεί να κατανέμει WS και να υποστηρίζει αποδοτικότερη και ταχύτερη ανακάλυψη απ’ ότι στον UDDI κατάλογο. Στην προσπάθεια αυτή ενσωματώθηκαν περαιτέρω, ορισμένες παράμετροι ποιότητας υπηρεσίας των Web Services (Quality of Web Services - QoWS). Βάση αυτών δίνεται η δυνατότητα αποδοτικότερης αναζήτησης WS και η εξαγωγή αμεσότερων αποτελεσμάτων. Οι τεχνολογίες που εξυπηρέτησαν ως υπόβαθρο ανάπτυξης είναι το P-Grid, P2P πρωτόκολλο επικοινωνίας, καθώς και το Gridella, η GUI υλοποίηση αυτού, για την ανακάλυψη αρχείων σε ένα P-Grid P2P δίκτυο. Εν τέλη, εξάγονται συμπεράσματα μέσα από πειράματα και μετρήσεις στην λειτουργία της πρότυπης εφαρμογής, που ονομάστηκε WS-Grid. / -

<p>Web service is a sophisticated SOA technology with a lot of infrastructure. In this thesis we will get to understand the core aspects and advance futures of Web services and get a solution based on Sauer-Danfoss’s requirements. The critical requirement include to find appropriate Web services application server, to realize an automatic update process and to get a general overview of Web services technology. The challenges in this thesis is obviously in getting understand Web services architecture and programming in unfamiliar language using chosen Web services framework.</p>

The PHP: Hypertext Preprocessor language (PHP) has evolved to a sophisticated mainstream programming language for rapid development of significant Web applications at major sites including Facebook.com, Wikipedia.org and Yahoo.com. Leading software vendors such as Oracle and IBM are rushing in providing tools that bridge their products to PHP. However, we have observed a gap in facilitating PHP to utilize Web services efficiently. This thesis reports our efforts in design and implementation of PHP applications that consume Web services. In doing so, I have proposed a framework facilitating PHP programs to utilize Web services with high performance capability. In addition, a number of Web service standards including WS-Addressing and those in WS-Security are integrated into my PHP implementation. Examples of using various Amazon Web Services are provided with details.

Tato diplomová práce je zaměřena na problematiku webových služeb, především pak na jejich komunikační a interakční protokol SOAP, který tvoří jejich klíčovou část. Úvod je věnován především terminologii webových služeb a jejich koncepci. Další část je již plně zaměřena na protokol SOAP a pojednává o historickém vývoji SOAPu a standardizačních aktivit okolo něj. Dále pak obsahuje rozbor základních aspektů protokolu SOAP. Další a nejpodstatnější částí této práce je rozbor problémů současných webových služeb, především jejich problémů s interoperabilitou. Tato práce tyto problémy nejen shrnuje a popisuje, ale zároveň se snaží navrhnout i řešení těchto problémů. Dále pak obsahuje i metodický postup pro hledání a odstraňování problémů interoperability webových služeb. Poslední část je věnována analýze nabídkové strany trhu webových služeb v ČR.