Category Archives: Blog

Make some noise!

In my previous blog post I told you about my worries. I was thinking about it and even talked to a few of you about it. It reminded me of something that happened to me once. A few years ago I was hired by an organisation. I was just one of the Uniface pro’s. Besides Uniface they used another development platform. I witnessed something very interesting, let me share this with you.

Both disciplines had their own room. In one room all went well, a dozen men worked in silence, behind a closed door they achieved their goals on time and within budget. The applications they maintained were very stable and performed as expected. The other room on the other hand was very lively, the walls were filled with all kinds of merchandise. The young developers had all kinds of technical issues, played arcade games in their breaks and drank beer after work.

Can you guess in which room the Uniface developers worked? Easy one, I know. If you can guess the next answer, I’ll buy you a beer. Which platform was preferred by the management?

I am afraid this is going to cost me a fortune on beer. We all know the answer. Of course, the other guys did a great job. I am, like most of us, too negative about them and the tooling they use. The reason they were not that productive was caused by the tools they used. But did they win?

Change the point of view. Let’s say you are the management of a company. The company depends completely on a few Uniface applications. Very stable and low on maintenance costs. In the near future you expect major changes in the organisations strategy and the markets are changing rapidly. You need to invest in new applications and/or change the existing ones. Are you going to use Uniface or go for something completely new? Choosing Uniface is the rational choice, isn’t it. Imagine, you have all these experienced guys (sorry ladies, but this is a man’s world…). But you never hear them. Sometimes you wonder if they even exist! How do you know if they use modern techniques? And what if you need a dozen more of these pro’s? Where and how can you find them? When you consult you’ll find all kinds of software warehouses to deliver you support on that other tool, while on Uniface all you find in the top 10 is Uniface itself.

If I had to give advice to this management, my advice would be to choose this other tool. Regardless which tool. Being a Uniface developer, as I am, I can tell you this hurts a lot. But it’s just a rational thing. Or isn’t it?

This reminds me. Once in a small village in The Netherlands the only shop closed down. All inhabitants did their grocery in the large supermarket in the adjacent city. Quiet normal, I guess you see this everywhere in the world. The next day an alderman announced in the newspaper that it would be a good idea to not only close the small shop, but also close the complete village. If the inhabitants loved the city to do their grocery, why not go and live there. This action did not save the local shop. But what if this one guy achieved to create a kind of movement. Let’s say, he achieved to motivate some entrepreneurial people. With this small group they could create new business for the local store. Instead of competing with the large competitor, focusing on the strengths. Sometimes you need the help of a community. Today, the strength is the community!

All successful tools I know have communities. Some very successful tools even are created by the community! A product community can be a partner or a critic ally for the company, but always fight on the same side. But, where is the Uniface community? All I see is a great product and a website ( with lots of fans. But that is not a community! It is something created by Uniface. I want to create a real Uniface community.  I truly believe we have the strength to unite and make the difference!

You can either participate or wait behind a closed door and I believe I can hear some melancholic seventies music. Let’s make some noise…. Let the world know we are here…. In my next blog I will share my ideas and plans with you all. Do you have idea’s? Please contact me  🙂

I love Uniface

If you think ‘hey, this is a strange posting? Where is the technical stuff?’, you are right. Most of you don’t know who I am. My name is Peter Lammersma. I am an entrepreneur and work with Uniface since 1996. Uniface was my employer from 1997 to 2001. The reason I am starting to blog here, is because I am worried. In this first blog posting I will try to explain why. I asked Uniface BV (the company) to give me, although I am not employed by them, permission to write this blog on Because I believe that we are the solution.

As you might know, I love Uniface. If there were ‘I love Uniface’ coffee mugs, I would drink my coffee out of it. Every day, really. If there were T-shirts, I would take good care and give it a special place in the wardrobe.

This feeling I have since 1996. Twenty year ago I swore that Uniface would be last software development tool I would ever use. As an entrepreneur for many years I am busy with several businesses, a few IT related, most of them not. And Uniface? I tried to escape, but she is always returning on my path. And believe me, I am more experienced with Uniface than I am with English :).

Now I am 45 I dare to admit, I like building software. To be honest, I don’t have a very objective point of view comparing Uniface with other tools. I am not interested in other tools, as long as Uniface serves my needs.

And it certainly does. Don’t you agree? Proven every day when we develop and maintain the software for our customers. With a minimum effort we produce highly effective applications. I believe this is called the return on investment. This is a very important business indicator. Every rational thinking decision maker can calculate and decide to use this wonderful tool forever! I certainly would. But, I have terrible news….

There is something wrong. I am worried and I want to share my worries with you.

Lack of Eagerness

I just realized that I am still using Uniface 9.6. While I should be interested in the new mobile features in 9.7. Wait, let’s skip 9.7. I should have downloaded Uniface 10, from the first day it was available. But I did not. Somehow Uniface 9.6 has everything that I need and I am not eager enough anymore to learn new stuff.

Have you already downloaded version 10? Or do you, like many, work in a version 9 in a way you used to in the previous versions?

And you know what worries me most? We don’t seem to care.

Where is that New Business

On the other hand, why should we use Uniface 10? Because it’s highly productive? The redesigned GUI? It’s not really important, is it. We all work like we did in Uniface 7. Sure, we use some of the new functions or statements, but in the end we try to hold on to what we once learned and used.

And why should we. New business is rare. Building or buying, the oldest question in software. When an organisation decides to build software, they will choose a sexy software development tool. Rather than proven technology with a huge install base. A game changer is always nice to talk about in the businessclub. You never hear someone say: ‘I choose this product because my dad used it in his business twenty years ago’.

Despite all commercial activities, most of us are stuck with the maintenance of the current applications. No need for new stuff.

So what

All above gives me a headache. You see, I want to use Uniface in future too. But I am doubting there is a long future. There is something that must be done. It’s not enough for Uniface (who came up with the idea to give the company the same name as the product?) to release a brand new product and wait what will happen. Nothing will happen by itself.

And we? Are we also just waiting for things to happen? We, the Uniface users, should find a way to regain our enthusiasm, our eagerness. I am thinking about this for a while now. But I wonder. Do you share my worries? I am very interested hearing from you all. So please respond to this blog. I am looking to forward to hearing from you (send me a message or comment below)!

In the meanwhile I’ll need a coffee and wait for something to happen…. Or?

Uniface mobile – Custom Cordova plugin support

Some would have noticed that this week has seen the release of two new Uniface patches – G302 for 9.7.02 and F102 for 10.2.01. Normally I wouldn’t post about a patch, however, this time, there is something new that has been included that I would like to share with you. It is now possible to include custom plugins into your mobile app.

In 9.7.02 we introduced the ability to access the Buildozer online build services to compile iOS and Android apps. Included in this integration was the facility to select, from a predefined list, a number of plugins to be included and made available, in JavaScript, to your DSP application. The latest patches have increased this support to enable you to also include plugins from third parties or ones you have created yourself.

Looking in the development environment with the application shell type set to Mobile you will see it is possible to set the mobile app’s properties. With these patches, a new field has been added to the properties screen that allows you to specify one or more public (git) repository where the plugins reside. Now, with the plugins selected in application startup shell, you can submit your app to be built and, as part of server processing, the plugin will be downloaded automatically and included within your project.

Mobile app definitions
Mobile app definitions screen

As an example, we have been asked for the ability to interface with Bluetooth to print a label on a wireless connected printer. A quick search on Google (for Cordova Bluetooth plugin) offered me several options that seem to fit the bill one of which, picked at random, is If I was to include their repository ( in my Uniface definitions, before building my app, I would be given access to the device’s Bluetooth capabilities using the documented API.

The Uniface G302 and F102 patches also include the latest documentation which has been updated to include this topic.

The new Uniface Integrated Development Environment .. more than just a new term

Uniface 10 is all about the new environment for developing Uniface applications. To underline that, we  have given it a new name: the Uniface Integrated Development Environment, or Uniface IDE.

For thirty odd years, we have referred to our development environment as ‘the IDF’. What does the term IDF stand for? How is IDE different from IDF? Is the difference relevant at all? Here in  the Lab, we use the terms IDF and IDE to make the following distinction:

  • IDE is the development environment for Uniface 10
  • IDF is the development environment for all Uniface 9 versions.

The IDE in Uniface 10 has its own new executable, called ide.exe. You can find it in the common/bin folder.
This new IDE uses a new assignment file, named ide.asn. This file is in the uniface/adm folder.

So, some things have changed, others have not. The logical path to the database that stores the repository is still called $IDF in Uniface 10.

IDE and IDF are totally different applications with their own characteristics and a very different user interface. Added to that: the repository has been changed substantially to cater for new functionality in the IDE. So, it’s important for us to distinguish between IDE and IDF.
The Uniface 10.2 IDE is largely composed of a completely new set of editors. Editors for components, modeled entities and projects, to name a few.
And yes, the IDE still contains a subset of editors that also exist in the IDF – you will find these under ‘More Editors’ in the IDE’s top menu. Over time, the old style editors will be replaced by new style editors, i.e.  IDE style editors

Where does the term IDF come from?

Way back, in the late eighties and early nineties of the previous century, the days of Uniface versions 4 and 5, the Uniface development tool was called Information engineering & Design Facility, IDF for short. Here’s a screenshot of the IDF start screen, taken from the Uniface 5.2 manual (and notice that other terminology has changed over time!) 

Uniface 5.2 Manual
Uniface 5.2 Manual

The name idf was also used for the executable that started the development tool: idf.exe on Windows and VMS, or just idf on Unix.
To use the development tool on Unix in those days, you would typically use the environment variable $idf that was defined by the install scripts. And to keep things simple, a predefined logical database path $IDF is used by Uniface to this very day to define where the repository is stored. 

In later versions the term Information engineering & Design Facility disappeared. We introduced the term UDE, short for Uniface Development Environment. The terms UDE and Uniface Development Environment were used all over the place in the documentation,  but I don’t recall ever having seen the term UDE in the tool itself. The executable that started the UDE was still named idf.exe – we’re talking Windows only in the meantime – and the assignment file for the UDE was still named idf.asn.

Enter the $UDE function in the Uniface Proc language in Uniface 9. A function that helps the developer define custom actions on repository data, including compiling, exporting, importing, and converting. On disk, you will find a file called ude.exe. This executable is not used to start the Uniface Development environment, but is used by the $UDE function. There is no ude.asn file for the ude.exe.

And for completeness sake: for a short period in the Uniface 9 lifetime we used the term Uniface Application Platform Suite, or APSThe APS is the workbench that integrates Uniface application development with the BPM product Uniface Flow. Note that as of Uniface 9.7, Uniface Flow is no longer delivered.

Uniface IDE vs IDF
Uniface IDE vs IDF

Confused? Naah, not anymore, I hope ….


Uniface 10: Code containers, code inheritance and default behavior

One of the many nice, new things about the Uniface 10 Development Environment is the Code Container. Each of your development objects, like components, entities and fields, has its own container that houses all of its triggers, operations and entries, generically called modules.

Uniface 10: Code Containers
Uniface 10: Code Containers

With this new way of organizing code, Uniface 10 provides ProcScript code inheritance in a very clear consistent way; code inheritance is purely on the level of the individual module.

Simply put: a ProcScript module defined at a specific level, overrides any implementation that module might have at a more generic level. Or, from a different perspective: if you do not implement a ProcScript module at a specific level, Uniface will fall back to the implementation of that module at the nearest (inheritance-wise) more generic level.

For triggers, the most generic level is really very generic: it is the built-in default trigger behavior. For most triggers the default behavior is to do nothing, but some triggers do have real default behavior. For example, if you omit an entity’s trigger create at all levels, Uniface still adds an occurrence when the user presses ^ADD_OCC.

The code containers, and the uniform way of code inheritance that comes with them, make Uniface 10 a real pleasure to work with, especially in combination with the Compiled Modules Inspector, which you find at the right-hand side of the Component Editor’s Write Script worksheet. It shows all modules that were compiled into the component, wherever they came from. A simple double-click on any of them moves you right into the code container of the object where that code was defined.

I love it!