Product Perfect

DRAKON-D is a visual programming language that allows developers to represent their code in a flowchart-like diagram, making it easier to understand and debug. It is based on the DRAKON language, which was developed by the Russian space program for software design. The "D" in DRAKON-D stands for "diagrammatic", emphasizing its graphical nature. This language aims to reduce cognitive load on the programmer, making it easier to create error-free code. It supports several programming paradigms including procedural, object-oriented and aspect-oriented programming.

Ask the right questions secure the right DRAKON-D talent among an increasingly shrinking pool of talent.

First 20 minutes

General DRAKON-D app knowledge and experience

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

How would you define DRAKON-D?

DRAKON-D is a programming language that is based on the DRAKON visual language, designed for developing algorithms. It has a clear, visual and intuitive syntax that simplifies complex logic.

What are the key characteristics of DRAKON-D?

Some key characteristics of DRAKON-D include its visual nature, ease of understanding, lack of ambiguity, and its focus on minimizing errors through clear logic.

Describe the difference between DRAKON-D and traditional programming languages.

Traditional programming languages use text-based syntax, while DRAKON-D uses visual diagrams. This makes DRAKON-D more intuitive and easier to understand, especially for complex logic.

How would you explain the concept of 'no nonsense' in DRAKON-D?

'No nonsense' in DRAKON-D means that the language is designed to be as straightforward and unambiguous as possible. It aims to eliminate common sources of errors in traditional programming languages.

What are some of the applications of DRAKON-D?

DRAKON-D can be used in any application that requires clear and unambiguous logic, such as business processes, system design, and software development.

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What you’re looking for early on

Does the candidate have a solid understanding of DRAKON-D language?

Can the candidate demonstrate experience with DRAKON-D?

Is the candidate able to solve problems using DRAKON-D?

Does the candidate show good communication skills?

Next 20 minutes

Specific DRAKON-D 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 represent a loop in DRAKON-D?

In DRAKON-D, a loop is represented as a cycle in the diagram. The loop starts at a 'For' or 'While' icon and ends at an 'End' icon.

Describe the difference between 'Silhouette' and 'Free shape' in DRAKON-D.

'Silhouette' in DRAKON-D is a predefined shape that represents a specific command or operation, while 'Free shape' is a user-defined shape that can represent any command or operation.

What are some ways to handle errors in DRAKON-D?

DRAKON-D has built-in error handling mechanisms, such as the 'Try' and 'Catch' icons. Additionally, you can design your own error handling logic using the visual syntax.

How would you implement recursion in DRAKON-D?

In DRAKON-D, recursion can be implemented by creating a loop in the diagram that calls the same function or procedure.

Describe the difference between 'Icon' and 'Pocket' in DRAKON-D.

'Icon' in DRAKON-D is a visual element that represents a command or operation, while 'Pocket' is a container that can hold multiple icons.

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At this point, a skilled DRAKON-D engineer should demonstrate strong problem-solving abilities, proficiency in DRAKON-D 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 DRAKON-D.

What does the following DRAKON-D code do?
proc main
icon start
icon action
end
This is a basic DRAKON-D procedure named 'main'. It starts with a start icon and ends with an end icon. It doesn't perform any action.
What will be the output of the following DRAKON-D code?
proc main
icon start
icon action
print 'Hello, DRAKON!'
icon end
This DRAKON-D procedure prints 'Hello, DRAKON!' to the console.
What does the following DRAKON-D code do?
proc main
icon start
icon action
var numbers = [1, 2, 3, 4, 5]
for number in numbers
print number
icon end
This DRAKON-D procedure iterates over the elements in the 'numbers' array and prints each number to the console.
What does the following DRAKON-D code do?
proc main
icon start
icon action
thread worker
icon end
proc worker
icon start
icon action
print 'Hello from worker thread!'
icon end
This DRAKON-D code starts a new thread named 'worker' that prints 'Hello from worker thread!' to the console.

Wrap-up questions

Final candidate for DRAKON-D 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 DRAKON-D application deployments. Inquire about their experience in handling system failures and their approach to debugging and troubleshooting.

What are some of the challenges you might face when using DRAKON-D?

Some challenges might include getting used to the visual syntax, managing large diagrams, and integrating DRAKON-D with other programming languages.

How would you optimize a DRAKON-D diagram for readability?

You can optimize a DRAKON-D diagram for readability by using clear labels, keeping the diagram compact, and organizing related operations together.

Describe the difference between 'Procedure' and 'Function' in DRAKON-D.

'Procedure' in DRAKON-D is a sequence of operations that performs a specific task, while 'Function' is a procedure that returns a value.

DRAKON-D application related

Product Perfect's DRAKON-D development capabilities

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

DRAKON-D Consultive assessments

DRAKON-D Application Conversion Assessment DRAKON-D Application Integration Assessment DRAKON-D Data & Database Integration Assessment

Custom DRAKON-D development projects

Custom DRAKON-D App Conversion DRAKON-D Custom App Development Process App UI Design for DRAKON-D Facelifts

Hiring guide for DRAKON-D Engineers

DRAKON-D Developer Hiring Guide

What you’re looking for early on

The ideal back-end app developer

What you’re looking to see on the DRAKON-D engineer at this point.

DRAKON-D Consultive assessments

Custom DRAKON-D development projects