Skip to Content
Author's profile photo Jerry Janda

Helmut Tammen — Member of the Month, December 2016

As we approach the holiday season, it’s only fitting that we close out the year by recognizing a community member who has given a gift to the community. For December, our Member of the Month is Helmut Tammen, who created an application to help members find tags in the new community.

First off, Helmut, congratulations for being the final Member of the Month for 2016! Can you tell us a bit about your work?

About twenty years ago, I had a talk about future plans and dreams with a friend. I told her that regarding my job I want to be one of the best and most known people in the area I’m working on. With the selection for Member of the Month, you help me achieve at least the “most known” aim. Thank you very much for this. It’s a great honor and pleasure to be selected by you and it’s great to see that community work gets recognized.

I’m a self-employed IT consultant and I live near Hannover in North Germany.

Originally I studied mechanical engineering. But already during studying I realized that IT was much more interesting than mechanics and after two years of working as an engineer I was lucky and found an employer in IT who gave me a chance. The next ten years I worked for two companies where I used several technologies like Fortran, C++, Pascal, Java, and some database systems.

Because I’m driven by curiosity and my employers couldn’t offer me interesting jobs, I decided to be self-employed. For more than fifteen years now I’ve been a freelancer and an SAP consultant. This time was interrupted by about five years when I was the founder and owner of a small IT consulting company. This didn’t work out for several reasons and so I’m a freelancer again.

On the one hand I work as an SAP consultant but on the other hand I still work in the non-SAP Java world. The customers I consult and realize software for are mostly Fortune 500 or DAX30 companies, which is how we call the most valuable enterprises in Germany.

Because big companies don’t like to collaborate with freelancers directly I do a lot of my SAP consulting for SAP which offers me interesting projects.

If you don’t mind me asking — why didn’t your consulting company work out?

I founded the company with a friend. At the peak we were five people. At this time organization and administration took quite a lot of time. I don’t like this type of work. I’m a technician and want to work as such. Furthermore my friend who is not a technician had other ideas of the company’s future than I had. So I left the company to do the work that’s fun and satisfies me.

Since your SAP Community profile mentions SAPUI5 — and since you created an SAPUI5 application for tag search — I’m going out on a limb and guessing you’re a bit of an SAPUI5 expert. Can you tell me a little bit about why and how you became so knowledgeable in this area?

Oh, I have to go a bit into the past to answer this question and tell you about my motivation.

My SAP career started with ABAP programming. In one of my first such projects I used ABAP Objects. That was long before there was any support in SE80. I had to do everything without tool support. But it was great to work with OO programming in ABAP. I learned what’s possible in R/3 and ABAP and always tried to squeeze the most out of it.

Two or three years later, SAP decided to purchase a portal company from Israel and released their own SAP portal shortly after that deal. This was developed with Java. Because of my background I was more than happy about that. I luckily could jump on that bandwagon very early and worked as a portal consultant for some years.

Then SAP came out with a new UI technology called Web Dynpro for Java. (Yes, it was released before Web Dynpro ABAP.) I again had the chance to work in one of the first customer projects with this technology and I widened my portfolio. After Web Dynpro for Java did not get new releases anymore, I thought about my future: Should I return to ABAP again, would there be other opportunities in the SAP world, or should I concentrate on non-SAP technologies like Java and its ecosystem? I didn’t really want to move back to ABAP because in my opinion there is much more innovation in Web technologies and in the Java world. As you can guess from what I mentioned before, I love to work with latest technologies and always try to find better IT solutions in my projects. But I also didn’t want to leave the SAP world.

Then in 2012 or 2013, I heard of SAP HANA and studied it a bit deeper because it looked like a promising innovative technology that could change the SAP IT world. While I made my first steps with HANA, I recognized SAPUI5 as new front-end technology. HANA hadn’t spread widely at that time. So I decided to focus a bit more on SAPUI5 and Fiori and I got first contracts in this area.

To learn the new technologies — namely SAPUI5, Fiori, HANA, HCP — helped me a lot. I participated in twelve online courses there and in one on (the more academic sister) so far. It’s an incredibly effective way to get an insight of new technologies.

Your profile also includes HCP, HANA, Cloud Foundry, and more. How did all of these areas become part of your career path?

As I said before, I’m driven by curiosity — I like to learn new technologies and always try to improve IT processes. I don’t only look at technologies SAP releases but also what’s hyped in the non-SAP technology world. At the moment, there is of course PaaS with Cloud Foundry and microservices in the infrastructured/DevOp area. In the programming area, there are new languages and paradigms like node.js and functional programming.

HCP is SAP’s PaaS implementation and in near future it will provide a Cloud Foundry run-time. HANA already supports it. Additionally there will be an SAP microservice platform currently called YaaS. Cloud Foundry and microservices are already adopted widely. So I think it was the right decision by SAP to also support it.

This decision enables me as an SAP and non-SAP consultant and developer to develop in non-SAP — that is, non-ABAP — fields but provide software for SAP systems. So I can work with really cool and innovative technologies that evolve much faster than ABAP but also stay in the SAP world.

I hope SAP will follow this direction in the future more often and with more intensity. This of course would be great for UI technologies as well.

Helmut shares his knowledge outside of the community as well, such as recently at UI5Con.

I’m still looking at your profile — I hope that doesn’t sound too creepy — and I see a nice mixture of activity: blog posts, questions, answers. Do you have a preference about how you participate in the SAP Community?

I love community work. Community is a place where people meet because they believe in the power of community. People give away their knowledge and they receive new knowledge. Also one meets a lot of interesting people, in virtual and (sometimes) in real life.

In SAP Community, I prefer to read and write blogs. The blogs are often a good starting point for understanding technologies or products and they often also go beyond the official SAP documentation.

When SDN started in 2003, I also loved working in the questions-and-answers section. For some time, I was under the top three contributors in the sections Web Dynpro Java and NWDI.

I’m not only active in SAP Community but also in more agile platforms with live chats. For example, there is the OpenUI5 community Slack where in the meantime more that 1,100 people meet and discuss all aspects of new SAP technology, not only UI5. To be honest, we also discuss non-SAP technologies from time to time.

Another contribution I made to the community was a session at the first UI5Con in Frankfurt, Germany at the beginning of 2016. (Writer’s note: You can watch a replay of Helmut’s  session.)

Outside the SAP Community, I’m also quite eager — such as with my open source project n-odata-server. I realized an OData server with which you can provide OData services within an amazing short time and with minimal programming skills. I personally use this to realize sample applications or being able to already develop UI5 front-end applications if the back-end developers in my projects are still at the beginning of their work. (Writer’s note: You can visit the no-odata-server site to learn more about this open project.)

OK, here’s the big question. Why did you decide to create the tag app? I’d like to know about how you went about developing it — the time it took and so on.

The answer to this question is very simple. When the new community started, there were a lot of questions like “How can I find content for area Fiori (BO, HANA, SAP ASE, and so on)?” Someone answered, “There is a Excel sheet for download that contains the technical IDs for different sections of community. Just add this ID (number) to the URL ‘’ and you’re done.” When I read that, I thought that this does not fit into the 21st century. So I sat down, converted the Excel file into JSON format, and wrote the tag app.

The initial development was done in two or three hours. In the meantime. of course I invested about two or three days because I enhanced the app a bit, played around with a few UI5 features, wrote some documentation, and did some “marketing” work.

Running — one of Helmut’s many interests

I’m assuming that you did the app in your free time — which tells me that you love to develop in and out of the office. But what else do you like to do in your spare time for fun? Any hobbies you’d like to talk about?

I like doing sports. At the moment my favorite is playing badminton. But I also like jogging. When I was twenty years younger, I participated in three marathon runs and lots of competitions over shorter distances — ten and twenty kilometers. But that’s a long time ago. Today I’m happy if I run five kilometers once or twice a week. Otherwise, I couldn’t do my community work!

Another area of interest is aviation. I would really like to get a pilot’s license and fly a gyrocopter. Some years ago I took a training lesson on a gyrocopter and one with an ultralight aircraft. It was amazing. Unfortunately, I don’t find the time for this passion. So I think I might either realize this dream when I’m retired — not that far away — or never, I’m afraid.

Getting a pilot’s license — an eventual goal for Helmut

Wow. Anything else?

What I shouldn’t forget if you ask for my spare-time activities is my dog. She requests quite a lot of time. Even though I once bought the dog for my daughter — who in the meantime has her own flat — this dog captured my heart. Dogs, compared to humans, are never resentful. They are always happy when their owners come home.

Happy together — Helmut and his dog

I have to say that your tag app is a great example of how community members work to make the community better. So I’m curious to know when and why you joined the community…

As you can see by my ID (P001984), I was one of the early guys. I registered on SDN in October 2003. So I’m a member for the last thirteen years. About my motivation…as I explained, I really love online communities and I hope the new SAP Community will become a place where great knowledge exchange will happen.

You clearly provide value to the community, but what value do you think you get in return?

As I already mentioned, people give knowledge to communities and they receive knowledge from communities. It motivates to see how others contribute to the community. If I read a valuable blog or get an answer to a question I feel that I also have to contribute to the community. If everyone thinks like that, a community really lives.

And how do you think other members can provide value? Any advice about participating in SAP Community?

As said before, everyone who gains benefit from the community should give something back. This is how open source communities work and this should be the case for SAP Community as well. The more people contribute to the community, the more benefit it will give.

For those who don’t want to or can’t contribute but who ask questions I want to say: Please define your questions as precise as possible, because the people who answer do this in their free time or during short pauses from their daily work. They want to help but they don’t want to get to the details of a problem in endless Q&A sessions.

Participation isn’t always limited to the community. I see members connecting via social media too. If people want to connect with you further, do you have a Twitter account that you’re willing to share?

Of course I’m not only active at SAP community but also on Twitter (@helmuttammen), LinkedIn (/helmuttammen), and XING (Helmut Tammen). Additionally, you can find my consultant profile created with UI5 at

Thanks for talking to me, Helmut — and thanks for everything you do for the SAP Community.

Thank you for giving me the opportunity to present myself and talk about the community.

I also would have liked to give you a video interview but because of a current and temporary disability I don’t feel well with this.

I understand, Helmut. I very much appreciate you taking the time to answer my questions. Have a great New Year!

Assigned Tags

      You must be Logged on to comment or reply to a post.
      Author's profile photo Caroleigh Deneen
      Caroleigh Deneen

      Congratulations, Helmut!  Your knowledge sharing, community spirit really comes through in this interview.

      Helmut, your experiences with running your own firm reminded me of my experiences with teaching. Between all the classroom management and administration, I missed the connections with my students.

      Nice choice, Jerry.

      Author's profile photo Helmut Tammen
      Helmut Tammen

      Thanks Caroleigh, since I gave up the expanding ideas I'm happy again and enjoy my job. I think it's better for some people to get appreciative words from colleagues and customers than to make a great career or earn much, much, much money.

      Author's profile photo Jeremy Good
      Jeremy Good

      Congrats Helmut! 

      Author's profile photo Helmut Tammen
      Helmut Tammen

      Thanks Jeremy. You are part of my story cause you and your colleagues gave me so much insight into all the new SAP products. Thank you for that.

      Author's profile photo Jeremy Good
      Jeremy Good


      Collaboration and Community go hand in hand - thank you for always making the effort to pay it forward!

      Author's profile photo Simone Milesi
      Simone Milesi

      Congratulations Helmut!
      A single tear drop fall down my cheek reading about Pascal, my 1st language when I approached the development!

      Author's profile photo Helmut Tammen
      Helmut Tammen

      Thank you Simone. Pascal / Delphi had it's advantages at least after struggling with all these memory leaks in C / C++. Nevertheless I'm happy I can work with other technologies / languages now.

      Author's profile photo Kimmo Jokinen
      Kimmo Jokinen

      Gongrats Helmut! Your contribution to the community is really appreciable. The community cannot have too much people like you that are always willing to have a conversation and share knowledge. I remember fondly of our discussions in UI5Con. Get well and looking forward to see you again.

      Author's profile photo Helmut Tammen
      Helmut Tammen

      Thanks Kimmo. I also enjoyed our discussion at UI5Con in March and to be honest I'm still waiting for the next UI5Con in Finland ;-). Would like to test the finish beer :-). But wait till summer cause our friends from Turkey, Italy, ... need at least 25 °C to be able to think 😀

      Author's profile photo Huseyin Dereli
      Huseyin Dereli

      That's true 🙂 But finish or german beer would definitely help us to think.

      Author's profile photo Gali Kling Schneider
      Gali Kling Schneider

      Congratulations Helmut on joining the ranks of MoM members - you are in good company!
      I enjoyed learning more about you and like Jeremy give thanks that you pay it forward! I too am obviously a firm believer in the power of communities! 

      Author's profile photo Christian Braukmüller
      Christian Braukmüller

      Congratulations Helmut!
      Great reading!
      Amazing to get reminded of many things from the past and very similar thoughts about self-employment and being independent.

      Thanks for being at our #UI5con in Frankfurt with your session. Hope to see (and hear!) you again in Frankfurt end of March'17. 😉


      Author's profile photo Colleen Hebbert
      Colleen Hebbert

      Congrats Helmut

      I was so happy to discover you were made MoM purely for the Tag App that you created. You wouldn't believe the number of SAP Conference Calls related to community where someone has mentioned your app when another member has struggled to find a tag relevant for them.


      Author's profile photo Joachim Rees
      Joachim Rees

      Congrats, Helmut!


      btw. I only just found out that there is a new MoM, and how to find it via Coffee-Corner:

      more precisely this comment:


      oh, and I learned how to link directly to a comment here:


      *sharing my knowledge, to help others navigate more easily*





      Author's profile photo Evgeniy Kolmakov
      Evgeniy Kolmakov


      Congratulations, Helmut!
      You've really deserved it.
      Regards, Evgeniy.

      Author's profile photo Huseyin Dereli
      Huseyin Dereli

      Congrats Helmut! Community or at least I have got a lot to learn from you. Especially about time management. There are always projects in my mind but no time or will power to realize them all.

      Author's profile photo Yüksel Akçinar
      Yüksel Akçinar

      Congratulations, Helmut!
      Thanks to MoM committee also because of choosing you as the last MoM of 2016.
      You did really a great job by developing the tags application.
      So many people were looking for this kind of a magic when new community was launched.

      Thanks and Rregards,
      Yuksel AKCINAR

      Author's profile photo Sanil Bhandari
      Sanil Bhandari

      Congratulations Helmut!


      Sanil Bhandari

      Author's profile photo Atul Kumar Jain
      Atul Kumar Jain

      Hi Helmut!,

      Great job.

      Best Regards,

      Author's profile photo Former Member
      Former Member

      Congratulations Helmut !
      Great inspiration taking from community and giving back the community that's how community live. That's really true !!
      Good Job.

      Best Regards,

      Author's profile photo Joachim Rees
      Joachim Rees

      So, who is the January 2017 MoM?

      Author's profile photo Joachim Rees
      Joachim Rees

      Found it: