training material for WSO2 EI - wso2

I'm planning on taking the WSO2 EI developer certification and am looking for recommendation on training material for the platform (ideally version 6.4). I find the material available at their website rather confusing - there's a lot of do this or do that but little explanation on when to choose one possibility or another. I've already gone through WSO2 Developer's Guide by Estrada & Lázaro but still would like to check other sources. Any recommendations?
Thanks!

Did you refer [1]? This contains some of the materials that is useful. You can also follow the webinars on [2]
[1]-https://wso2.com/training/certification/certified-enterprise-integrator6-developer
[2]-https://wso2.com/library/integration/

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Google Cloud Speech-to-Text API - Multi-speaker recognition?

The new Google Cloud Speech-to-Text API is said to be the best in the market. Does it provide speaker annotation (or other speaker information) at all? Like who says what at what time. I can't seem to find anywhere on its documentation or examples provided that mentions it.
Both IBM and Amazon do it.
I'd be appreciated if anyone can let me know, thanks!
Individual speaker recognition is not currently a feature provided by the API. It’s noted in the issue tracker [1] as a feature request, however there’s no ETA for it currently. I’d recommend starring the issue to receive future comments and updates regarding it.
[1] https://issuetracker.google.com/35901846

OWL-S semantic services creation and execution

I'm trying to improve the semantic web services' discovery to satisfy better the user. For that, I choose to use OWL-S. So I created an ontology using Protégé then I generated semantic web services using OWL-S editor within Eclipse (these services have been in part generated automatically since they are already developed in Java). What I can't do now is the execution of these services: I don't know how to proceed. I need your help please, I didn't find good documentation or tutorials about the life cycle of OWL-S services. Could you please help me and suggest me some useful tools, tutorials..?
PS: do you think that OWL-S is still used or do you suggest something else? What is the most common way to develop semantic web services nowadays?
Thank you!
OWl-S is a W3C consortium standard, therefore documentation is available regarding that. Check the below links
http://www.w3.org/Submission/OWL-S/
http://www.daml.org/services/owl-s/
http://www.ai.sri.com/daml/services/owl-s/examples.html

Integrating Cloudify with vCloud

I am working on using Cloudify for vCloud. So far the information I gathered , this intgegration is possible as jCloud has interfaces for vCloud too. I am yet to explore the jCloud too. I am looking for if any effort has been put to integrate Cloudify with vCloud. Any pointers to documentation or earlier Qs/blogs which I couldn't find myself will be valuable.
Thanks
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Does WSO2 calculate SOA benefits along the time?

I am studying WSO2 Governance Registry and I am impressed with all its features. However, I would like to know whether it measures SOA benefits or not.
Some other SOA Governance tools let you inform the amount of hours spent on the development of a specific service and calculate how many hours were then saved every time that service was reused. Along the time, you get the perspective of how many hours were saved by reuse thus it is possible to have an approximate amount of money that was also saved.
In summary, does WSO2 Governance Registry (or other WSO2 product) provide that feature?
Thanks a lot!
Governance registry does not support this out of the box.
However, there are some roadmap items in AppFactory towards this direction.
This feature is available in GReg 5.0.0 onward. Now you can create lifecycle checkpoints according to pre-defined time constrains.
Please find this post.
hope this helps.

How should I allow others to dynamically find web services?

I have been fighting with this for a while now. I need to prototype SOA, and with it, the registry. I have been fiddling with jUDDIv3 on JBoss SOA Platform 5, but there don't appear to be any tools that allow me to publish to a v3 jUDDI registry. See my related questions here and here.
I realize after reading comments on those questions, and some articles on the internet (like this one) that UDDI is failing or dead, however my organization has some legacy tech we need to work with.
Also, my supervisor (I'm an intern) is adamant about sticking to standards. In principle, I agree with this, but perhaps a dead standard really isn't a much of a standard if nobody uses it.
In short, I need to provide the registry component of Service Oriented Architecture. It probably needs to be UDDI, so that it fits with the legacy tech, and satisfies the standard. Whatever the solution, it would be best if there were tools available that allow me to publish web services to that registry.
This problem has dragged on much longer than I would have liked. Any small piece of advice is really appreciated.
You may use WS-Discovery. WS-Discovery is a standard protocol for discovering services and service endpoints. This enables service clients to search for services based on a given criteria and bind with the discovered services. There are tow modes of WS-Discovery,
ad-hoc - servers advertise the services they have using a UDP multicast protocol
managed mode - servers and clients use an intermediary known as the discovery proxy for all service discovery purposes.
You can simply try this out with WSO2 Platform (free and open source under apache2 license). Please follow [1] to see a simple scenario of WS-Discovery in managed mode.
[1] http://charithaka.blogspot.com/2010/04/ws-discovery-with-wso2-carbon.html