Engineering Design and Product Reliability
© Dobromir Velikov
Visualization of Technical Systems

Learning content and outcomes

Learning content


- Fundamentals of technical drawing as an information medium for design and production

- Visualization, dimensioning, and tolerance of building components

CAD course:

- Introduction to 3D computer-assisted design

- Creating 3D CAD models of individual building components and combining these into assemblies

- Deriving drawings of 3D models


Learning outcomes:

Students acquire knowledge in the following areas: 

  • Visualization and dimensioning of building components
  • Renderings of perspectives and sections
  • Material, surface and heat treatment specifications
  • Creation and maintenance of parts lists
  • Central components of technical information transfer

Specialized skills: 

  • Creating 3D CAD models of individual building components and combining these into assemblies
  • Deriving drawings of 3D models 


  • Ability to visualize and analyze simple technical systems 

Participation scope and requirements

This integrated course encompasses four lectures, during which students learn course content and important relationships, as well as five practical tutorials on technical drawing. Both of these formats are held as a single large group. During a weekly CAD course, completed in small groups, students have the opportunity to further explore and apply lecture material as well as become familiar with using CAD software. The course is two course hours per week.


If you would like to take this ungraded module and complete it with a portfolio assessment, please take note of the following requirements for the module exam registration:

- MOSES registration for the CAD tutorial (registration begins 01.04. and 01.10.)

The portfolio assessment comprises:

  • Two drawing assignments
  • Presentation of CAD homework


If you have any questions about the course or scheduling, please contact:

Dipl.-Ing. Arsalan Khoshnevis

Please discuss any technical questions with your tutor during the practical tutorial or office hours..

Staff are available in the CAD lab from Monday to Friday during office hours and can be contacted by phone at 030/ 314 24830. Office hours are not held during the lecture-free period.

Registration for the current semester

aktuelles Semester

Please use ISIS to register for the current 2023 summer semester. All further information about the semester will also be posted there.

Please note that you must register for the tutorial via MOSES:

Beginning 01.10. - winter semester

Beginning 01.04. - summer semester

Using the software

In order to use any software provided or distributed in the CAD lab, you must sign the current terms of use for academic licensed software.

You can download the terms of use under “Further links.”



Unit dimensioning?

Do I have to indicate the measurement unit in technical drawings?

No, as a rule all measurements are provided in millimeters in technical drawings. You do not need to indicate the unit.

Cross-section of thread visualization

The figure shows an example of a threaded rod cut perpendicular to the axis:

The thread representation of male and female threads in technical drawings is regulated in DIN ISO 6410-1.

Standard font for Word/PDFs etc.

When you install Solid Edge, the standard font "Solid Edge ISO" will automatically be downloaded to your Window font folder. You can then use it just like any other font in other programs. If using other fonts, select a sans-serif font. We recommend Arial.

Is the exercise catalog mandatory?

You are not required to submit the exercise catalog. It comprises all the exercises we demonstrate in the video tutorials as well as a few others. They are an opportunity for you to learn Solid Edge. You can print the catalog to have on hand and make notes when using CAD.

General information

Exam registration for DTS

You must register for the DTS portfolio assessment before completing the first component (the first online test). We recommend registering no later than two days before the exam to ensure your registration is processed by the Examination Office in time.

Below is an overview of how to successfully register for the DTS portfolio examination.

Example 1: 

You take DTS as part of the module Design Theory 1 and DTS is worth 30% of the final grade: -> Register for Design Theory 1 in QISPOS and you will automatically be registered for DTS.

Example 2: 

You take DTS separately: Register for DTS in QISPOS.

Example 3: 

You take DTS as an additional module (e.g. free elective): -> Register by submitting the form “Anmeldung zur Prüfung” to the Examination Office

Example 4: MINTgrün students: Register by sending an email to Mr. Arsalan Khoshnevis.

If anything should change during the semester, we will promptly inform you in ISIS.


The module grade for Design Theory 1 is made up of portfolio points from DTS (30 points) and Fundamentals of Design (70 points).

Portfolio components in DTS - converting DTS points at the end of the semester:

  1. Online test encompassing 25 points; in the Design Theory 1 portfolio assessment, the test is worth 10/100 points. To convert: 10 x (your points/25)
  2. Technical drawing homework encompassing 50 points; in the Design Theory 1 portfolio assessment, this assignment is worth 10/100 points. To convert: 10 x (your points/50)
  3. CAD homework encompassing 25 points; in the Design Theory 1 portfolio assessment, the homework is worth 10/100 points. To convert: 10 x (your points/25)

If you only take DTS, you will be graded on a pass/fail basis. You must earn at least 50 of the 100 points available to pass the assessment.

Portfolio components in DTS:

  1. Online test, 25 points
  2. Technical drawing homework 50 points
  3. CAD homework, 25 points

Taking Design Theory 1 - DTS and Fundamentals of Design Theory in the same semester

You must take both components - DTS and Fundamentals of Design - in the same semester as they are both part of the module Design Theory 1 and it is concluded with a portfolio assessment. For this reason, you must also complete related exams/assessments from DTS and Fundamentals of Design during the same exam period within a semester. You do not need to separately register for the DTS exam.

You can find information about the portfolio points for K1 in the introductory slides located in ISIS under “Einführungswoche.”

Design Theory 1 or Engineering Design 1?

Design Theory 1 is made up of two sub-courses: Visualization of Technical Systems and Fundamentals of Design. The module is offered for students studying industrial engineering and management, teacher training, as well as students with old study and examination regulations (StuPOs).

Engineering Design was re-designed in summer semester 2018. You first take DTS, followed by Engineering Design 1. Engineering Design 1 builds on the material taught in DTS and cannot be taken at the same time!

Please refer to your study and examination regulations or official module list in MTS to see which module you need to take.

Lecture? Office hours? Tutorials? Practical tutorials?

There are a total of three lectures during the semester.

All lecture content is taught using instructional videos/tutorials. New videos are uploaded weekly. You can work through them at your own pace.

The tutorials consist of the weekly uploaded videos on CAD and technical drawing. There are no in person class meetings. Please use the exercises and repeat tests to check that you understand the material.

Office hours are offered so that you can ask general questions as well as anything about the tutorial content and homework. In general, we recommend coming to office hours even if you do not have any questions as you have the opportunity to view machine elements, work on homework with a tutor’s support, speak with other students, as well as learn from their questions. Moses automatically assigns you to a tutor and their respective office hours. The Moses dates and allocation to an office hour in ISIS primarily serve to ensure that you have access to at least one office hour each wee. Please sign up for your office hour in ISIS. The links for participating in office hours online are posted under “Allgemein.”

In addition to homework, we also post additional exercises to help you prepare and understand the material. Further information will be provided throughout the semester.

Credits from components from previous semesters

If you fail DTS, it is not possible to have your homework assignments recognized when taking the course a second time.

If you submitted homework for credit in Engineering Design 1 but failed the exam, you can receive partial credit so that you only have to take the exam again. However, you can only have all of your homework recognized or none at all. You cannot get credit for individual assignments while repeating others. To have credits recognized, you must contact us before the first component (online test). Once you have completed an exam component this semester, it is no longer possible to have previous work recognized.

DTS second attempt

When taking the course for the second time, you repeat all the portfolio components again. Points from the first time around are not counted.

Solid Edge with Max or Linux?

Solid Edge only operates on Windows computers. If you have a Max or Linux computer, you must also have Windows installed to use SE. You can either install Windows in a separate hard drive partition or virtual machine (e.g. VirtualBox). You can find instructions on YouTube and elsewhere on the Internet.

Changing the language in Solid Edge

Generally, we recommend setting the language to German as the names of the functions are explained in German in the tutorials and are thus easier to find. The standard language is initially set based on your computer’s region settings. The only other option is English. 

As a result, you have two options:

1. Change the system language ( Settings > Time and language > Language)

2. Change the programming language to English (Einstellungen > Optionen > Hilfen > Sprache check the box "Use Englisch in the user interface")

Drawing materials

Do I need to buy pencils and stencils? To practice at home, we recommend buying good quality pencils and stencils. However, this is not required. The following material is useful for the technical drawing homework: At least two lead pencils (e.g. 0.35 mm and 0.7 mm) and a drawing stencil that contains at least numbers, arrows and important symbols like diameter, an R for radius, etc. in their standard form. Additionally, circle stencils and stencils with the complete alphabet can be helpful.