Product Perfect

Uniface is a development and deployment platform for enterprise applications that run in a large range of runtime environments, including mobile, mainframe, web, Service-oriented architecture (SOA), Windows, Java EE and .NET. Uniface is a model-driven, Rapid Application Development (RAD) environment used to create mission-critical applications. It includes capabilities such as GUI design tools, prototyping features and integration with different databases and technologies. Uniface was originally developed by Inside Automation but now belongs to Rocket Software.

Ask the right questions secure the right Uniface talent among an increasingly shrinking pool of talent.

First 20 minutes

General Uniface app knowledge and experience

The first 20 minutes of the interview should seek to understand the candidate's general background in Uniface application development, including their experience with various programming languages, databases, and their approach to designing scalable and maintainable systems.

How would you define Uniface?

Uniface is a development tool that allows developers to build enterprise applications. It is platform-independent, database-independent, and can be used to develop applications for a variety of devices.

What are the main components of Uniface?

The main components of Uniface are the Uniface Development Environment, Uniface Application Server, and Uniface Router.

Describe the difference between Uniface and other programming languages.

Unlike other programming languages, Uniface is a high-level, model-driven, and largely graphical language. It allows developers to focus on business logic rather than low-level coding.

How would you handle errors in Uniface?

Uniface provides a structured error handling mechanism. I would use the 'catch' and 'raise' statements to handle errors.

What is the purpose of the Uniface Router?

The Uniface Router is used to manage connections between Uniface clients and servers. It ensures that requests are routed to the appropriate server.

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What you’re looking for early on

Has the candidate demonstrated a strong understanding of Uniface's architecture and components?

Does the candidate have experience with SQL and databases?

Has the candidate shown problem-solving skills?

Does the candidate have experience with other programming languages?

Next 20 minutes

Specific Uniface development questions

The next 20 minutes of the interview should focus on the candidate's expertise with specific backend frameworks, their understanding of RESTful APIs, and their experience in handling data storage and retrieval efficiently.

How would you optimize a Uniface application for performance?

There are several ways to optimize a Uniface application for performance. These include optimizing database access, reducing network traffic, and using the Uniface Profiler tool to identify performance bottlenecks.

What are some of the advantages of using Uniface?

Some of the advantages of using Uniface include its platform independence, database independence, and the ability to develop applications for a variety of devices.

Describe the difference between procedural and trigger code in Uniface.

Procedural code in Uniface is used to perform a specific task, while trigger code is executed in response to a specific event.

How would you test a Uniface application?

I would use the Uniface Test Framework to test a Uniface application. This tool allows for automated testing and provides detailed test reports.

What is the role of the Uniface Application Server?

The Uniface Application Server is used to host Uniface applications. It provides services such as session management, transaction management, and security.

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At this point, a skilled Uniface engineer should demonstrate strong problem-solving abilities, proficiency in Uniface programming language, and knowledge of software development methodologies. Red flags include lack of hands-on experience, inability to articulate complex concepts, or unfamiliarity with standard coding practices.

Digging deeper

Code questions

These will help you see the candidate's real-world development capabilities with Uniface.

What does this simple Uniface code do?
activate "Hello World"
This code will display a message box with the text 'Hello World'.
What does this Uniface code do?
entry message
params
string pMessage: in
endparams
message/pMessage
end
This code defines a procedure called 'message' that takes a string parameter 'pMessage'. It then displays a message box with the content of 'pMessage'.
What does this Uniface code do?
newinstance "MyArray",$MyArray
putitem/id $MyArray,1,"Apple"
putitem/id $MyArray,2,"Banana"
This code creates a new instance of an array called 'MyArray' and then adds two items to it. The first item has an ID of 1 and a value of 'Apple', and the second item has an ID of 2 and a value of 'Banana'.
What does this Uniface code do?
activate "MyProcedure".detach
This code will start the procedure 'MyProcedure' in a separate thread, allowing it to run concurrently with the rest of the application.

Wrap-up questions

Final candidate for Uniface Developer role questions

The final few questions should evaluate the candidate's teamwork, communication, and problem-solving skills. Additionally, assess their knowledge of microservices architecture, serverless computing, and how they handle Uniface application deployments. Inquire about their experience in handling system failures and their approach to debugging and troubleshooting.

How would you handle data migration in Uniface?

Data migration in Uniface can be handled using the Uniface Data Management tools. These tools allow for data to be exported from one database and imported into another.

What are some of the challenges you might face when developing with Uniface?

Some of the challenges when developing with Uniface might include dealing with legacy code, optimizing performance, and ensuring compatibility with different platforms and databases.

Describe the difference between the Uniface Development Environment and the Uniface Application Server.

The Uniface Development Environment is used to develop Uniface applications, while the Uniface Application Server is used to host these applications.

Uniface application related

Product Perfect's Uniface development capabilities

Beyond hiring for your Uniface engineering team, you may be in the market for additional help. Product Perfect provides seasoned expertise in Uniface projects, and can engage in multiple capacities.

Uniface Consultive assessments

Uniface Application Conversion Assessment Uniface Application Integration Assessment Uniface Data & Database Integration Assessment

Custom Uniface development projects

Custom Uniface App Conversion Uniface Custom App Development Process App UI Design for Uniface Facelifts

Hiring guide for Uniface Engineers

Uniface Developer Hiring Guide

What you’re looking for early on

The ideal back-end app developer

What you’re looking to see on the Uniface engineer at this point.

Uniface Consultive assessments

Custom Uniface development projects