SlideShare a Scribd company logo
1 of 7
Download to read offline
Process Safety and Control
Integrity and Reliability of Networks
and Distributed Systems
Summer Term 2022
Prof. Dr.-Ing. Andreas Bück
Institute of Particle Technology
Friedrich-Alexander-Universität Erlangen-Nürnberg
Prof. Dr.-Ing. A. Bück | LFG | Summer Term 2022
Introduction
2
What is this course about?
§ Many industrial and civil functions are
realised as networks (SmartSystems, IoT)
§ CEP: distributed energy generation,
transmission through power grids
§ How can we guarantee the function of complex
networks (structurally)?
§ How to defend the network against
external influences (natural or not)?
[Wikipedia.org/Power
grid]
Introduction
3
[Wikipedia.org/Social Network Analysis]
[Manipur,
I.,
Granata,
I.,
Maddalena,
L.
et
al.
BMC
Bioinformatics
21,
349
(2020)]
Introduction
4
Topics
- Introduction to process safety concepts
- Description and analysis of networks (introduction to graph theory)
- Steady-state analysis of network structure and function
(Boolean analysis, Fault tree analysis)
- Reliability analysis and improvement by redundancy and control
(Statistics and Monte Carlo simulations)
- Cyber security: Detecting and deflecting attacks on networks
§ Analysis: by hand (pen and paper), computationally (programming required)
Introduction
5
Schedule
§ One lecture per week: Wed, 10:00 – 12:00
§ One seminar per week: Wed, 14:00 – 16:00
Reality
§ One lecture per week: Wed, 10:00 – 12:00
§ Seminars: (a) self-study, (b) in-person (approx. bi-weekly rotation)
Task sheets for each seminar will be provided. Students are expected to work on them
individually in the self-study period. Discussion and solutions will be provided in the
in-person seminars.
Final schedule will be published in this week (StudOn).
Introduction
6
Material
§ Lecture notes will be made available before the lectures (slides, texts, …)
§ Notes will be supplemented by material (e.g., research articles) as we go along
§ Task sheets will be uploaded approx. one week before self-study seminar
§ Also: Discussion forum will be installed (mostly for you, I will have a look sometimes)
Introduction
7
Grading
Exam (100%): oral, ca. 30 min
Practical: Additional ECTS points (please check whether you want/need them)
§ Get in contact, if you want to take the practical. Tasks will be distributed beginning
of the second half of this course.
Incentive programme
On each task sheets, there will be one (extended) task. Successful completion of the task
will be rewarded by 1 point. If more than three points are achieved (> 3 points), an improvement
of the final degree by 0.3 will be granted.
Solution to the task need to be handed in two days before the next in-person session (email).

More Related Content

Similar to 00_Introduction.pdf

Technology and Project Management (MGMT7020)Assignment 1 Speci.docx
Technology and Project Management (MGMT7020)Assignment 1 Speci.docxTechnology and Project Management (MGMT7020)Assignment 1 Speci.docx
Technology and Project Management (MGMT7020)Assignment 1 Speci.docxbradburgess22840
 
Social Web: (Big) Data Mining | summer 2014/2015 course syllabus
Social Web: (Big) Data Mining | summer 2014/2015 course syllabusSocial Web: (Big) Data Mining | summer 2014/2015 course syllabus
Social Web: (Big) Data Mining | summer 2014/2015 course syllabusJakub Ruzicka
 
ASCILITE 2018: Towards authentic e-Exams at scale: robust networked Moodle
ASCILITE 2018: Towards authentic e-Exams at scale: robust networked MoodleASCILITE 2018: Towards authentic e-Exams at scale: robust networked Moodle
ASCILITE 2018: Towards authentic e-Exams at scale: robust networked Moodlemathewhillier
 
Unit 1 industry in the profession
Unit 1 industry in the professionUnit 1 industry in the profession
Unit 1 industry in the professionPaulineTorion1
 
An Application-Oriented Approach for Computer Security Education
An Application-Oriented Approach for Computer Security EducationAn Application-Oriented Approach for Computer Security Education
An Application-Oriented Approach for Computer Security EducationXiao Qin
 
GEMS-1-opening-1.pptx
GEMS-1-opening-1.pptxGEMS-1-opening-1.pptx
GEMS-1-opening-1.pptxAndrey63387
 
Introduction and administrative information (MS Word 97 format)
Introduction and administrative information (MS Word 97 format)Introduction and administrative information (MS Word 97 format)
Introduction and administrative information (MS Word 97 format)butest
 
discussion_3_project.pdf
discussion_3_project.pdfdiscussion_3_project.pdf
discussion_3_project.pdfKuan-Tsae Huang
 
Machine Learning
Machine LearningMachine Learning
Machine Learningbutest
 
Analysis And Design Of Internship Report And Thesis Mentoring Management System
Analysis And Design Of Internship Report And Thesis Mentoring Management SystemAnalysis And Design Of Internship Report And Thesis Mentoring Management System
Analysis And Design Of Internship Report And Thesis Mentoring Management SystemWendy Hager
 
Circuit design presentation
Circuit design presentationCircuit design presentation
Circuit design presentationDebopriyo Roy
 
Short performance task
Short performance taskShort performance task
Short performance taskY202
 
CIS_170_05_F15F2F_Paurus
CIS_170_05_F15F2F_PaurusCIS_170_05_F15F2F_Paurus
CIS_170_05_F15F2F_PaurusJordan Bushaw
 

Similar to 00_Introduction.pdf (20)

Technology and Project Management (MGMT7020)Assignment 1 Speci.docx
Technology and Project Management (MGMT7020)Assignment 1 Speci.docxTechnology and Project Management (MGMT7020)Assignment 1 Speci.docx
Technology and Project Management (MGMT7020)Assignment 1 Speci.docx
 
PPT.pptx
PPT.pptxPPT.pptx
PPT.pptx
 
Social Web: (Big) Data Mining | summer 2014/2015 course syllabus
Social Web: (Big) Data Mining | summer 2014/2015 course syllabusSocial Web: (Big) Data Mining | summer 2014/2015 course syllabus
Social Web: (Big) Data Mining | summer 2014/2015 course syllabus
 
CC 207 Module.docx
CC 207 Module.docxCC 207 Module.docx
CC 207 Module.docx
 
ASCILITE 2018: Towards authentic e-Exams at scale: robust networked Moodle
ASCILITE 2018: Towards authentic e-Exams at scale: robust networked MoodleASCILITE 2018: Towards authentic e-Exams at scale: robust networked Moodle
ASCILITE 2018: Towards authentic e-Exams at scale: robust networked Moodle
 
Computer engineering university
Computer engineering university Computer engineering university
Computer engineering university
 
Unit 1 industry in the profession
Unit 1 industry in the professionUnit 1 industry in the profession
Unit 1 industry in the profession
 
An Application-Oriented Approach for Computer Security Education
An Application-Oriented Approach for Computer Security EducationAn Application-Oriented Approach for Computer Security Education
An Application-Oriented Approach for Computer Security Education
 
GEMS-1-opening-1.pptx
GEMS-1-opening-1.pptxGEMS-1-opening-1.pptx
GEMS-1-opening-1.pptx
 
Introduction and administrative information (MS Word 97 format)
Introduction and administrative information (MS Word 97 format)Introduction and administrative information (MS Word 97 format)
Introduction and administrative information (MS Word 97 format)
 
discussion_3_project.pdf
discussion_3_project.pdfdiscussion_3_project.pdf
discussion_3_project.pdf
 
Machine Learning
Machine LearningMachine Learning
Machine Learning
 
Analysis And Design Of Internship Report And Thesis Mentoring Management System
Analysis And Design Of Internship Report And Thesis Mentoring Management SystemAnalysis And Design Of Internship Report And Thesis Mentoring Management System
Analysis And Design Of Internship Report And Thesis Mentoring Management System
 
Chapter0 fall 2005[one.]
Chapter0 fall 2005[one.]Chapter0 fall 2005[one.]
Chapter0 fall 2005[one.]
 
Cs 643 syllabus
Cs 643   syllabusCs 643   syllabus
Cs 643 syllabus
 
0-Welcome.ppt
0-Welcome.ppt0-Welcome.ppt
0-Welcome.ppt
 
Circuit design presentation
Circuit design presentationCircuit design presentation
Circuit design presentation
 
Short performance task
Short performance taskShort performance task
Short performance task
 
CIS_170_05_F15F2F_Paurus
CIS_170_05_F15F2F_PaurusCIS_170_05_F15F2F_Paurus
CIS_170_05_F15F2F_Paurus
 
Syllabus
SyllabusSyllabus
Syllabus
 

Recently uploaded

UNIT-V FMM.HYDRAULIC TURBINE - Construction and working
UNIT-V FMM.HYDRAULIC TURBINE - Construction and workingUNIT-V FMM.HYDRAULIC TURBINE - Construction and working
UNIT-V FMM.HYDRAULIC TURBINE - Construction and workingrknatarajan
 
247267395-1-Symmetric-and-distributed-shared-memory-architectures-ppt (1).ppt
247267395-1-Symmetric-and-distributed-shared-memory-architectures-ppt (1).ppt247267395-1-Symmetric-and-distributed-shared-memory-architectures-ppt (1).ppt
247267395-1-Symmetric-and-distributed-shared-memory-architectures-ppt (1).pptssuser5c9d4b1
 
(ANJALI) Dange Chowk Call Girls Just Call 7001035870 [ Cash on Delivery ] Pun...
(ANJALI) Dange Chowk Call Girls Just Call 7001035870 [ Cash on Delivery ] Pun...(ANJALI) Dange Chowk Call Girls Just Call 7001035870 [ Cash on Delivery ] Pun...
(ANJALI) Dange Chowk Call Girls Just Call 7001035870 [ Cash on Delivery ] Pun...ranjana rawat
 
(ANVI) Koregaon Park Call Girls Just Call 7001035870 [ Cash on Delivery ] Pun...
(ANVI) Koregaon Park Call Girls Just Call 7001035870 [ Cash on Delivery ] Pun...(ANVI) Koregaon Park Call Girls Just Call 7001035870 [ Cash on Delivery ] Pun...
(ANVI) Koregaon Park Call Girls Just Call 7001035870 [ Cash on Delivery ] Pun...ranjana rawat
 
Sheet Pile Wall Design and Construction: A Practical Guide for Civil Engineer...
Sheet Pile Wall Design and Construction: A Practical Guide for Civil Engineer...Sheet Pile Wall Design and Construction: A Practical Guide for Civil Engineer...
Sheet Pile Wall Design and Construction: A Practical Guide for Civil Engineer...Dr.Costas Sachpazis
 
High Profile Call Girls Nagpur Meera Call 7001035870 Meet With Nagpur Escorts
High Profile Call Girls Nagpur Meera Call 7001035870 Meet With Nagpur EscortsHigh Profile Call Girls Nagpur Meera Call 7001035870 Meet With Nagpur Escorts
High Profile Call Girls Nagpur Meera Call 7001035870 Meet With Nagpur EscortsCall Girls in Nagpur High Profile
 
High Profile Call Girls Nagpur Isha Call 7001035870 Meet With Nagpur Escorts
High Profile Call Girls Nagpur Isha Call 7001035870 Meet With Nagpur EscortsHigh Profile Call Girls Nagpur Isha Call 7001035870 Meet With Nagpur Escorts
High Profile Call Girls Nagpur Isha Call 7001035870 Meet With Nagpur Escortsranjana rawat
 
(PRIYA) Rajgurunagar Call Girls Just Call 7001035870 [ Cash on Delivery ] Pun...
(PRIYA) Rajgurunagar Call Girls Just Call 7001035870 [ Cash on Delivery ] Pun...(PRIYA) Rajgurunagar Call Girls Just Call 7001035870 [ Cash on Delivery ] Pun...
(PRIYA) Rajgurunagar Call Girls Just Call 7001035870 [ Cash on Delivery ] Pun...ranjana rawat
 
Introduction to Multiple Access Protocol.pptx
Introduction to Multiple Access Protocol.pptxIntroduction to Multiple Access Protocol.pptx
Introduction to Multiple Access Protocol.pptxupamatechverse
 
Structural Analysis and Design of Foundations: A Comprehensive Handbook for S...
Structural Analysis and Design of Foundations: A Comprehensive Handbook for S...Structural Analysis and Design of Foundations: A Comprehensive Handbook for S...
Structural Analysis and Design of Foundations: A Comprehensive Handbook for S...Dr.Costas Sachpazis
 
MANUFACTURING PROCESS-II UNIT-5 NC MACHINE TOOLS
MANUFACTURING PROCESS-II UNIT-5 NC MACHINE TOOLSMANUFACTURING PROCESS-II UNIT-5 NC MACHINE TOOLS
MANUFACTURING PROCESS-II UNIT-5 NC MACHINE TOOLSSIVASHANKAR N
 
(SHREYA) Chakan Call Girls Just Call 7001035870 [ Cash on Delivery ] Pune Esc...
(SHREYA) Chakan Call Girls Just Call 7001035870 [ Cash on Delivery ] Pune Esc...(SHREYA) Chakan Call Girls Just Call 7001035870 [ Cash on Delivery ] Pune Esc...
(SHREYA) Chakan Call Girls Just Call 7001035870 [ Cash on Delivery ] Pune Esc...ranjana rawat
 
VIP Call Girls Service Kondapur Hyderabad Call +91-8250192130
VIP Call Girls Service Kondapur Hyderabad Call +91-8250192130VIP Call Girls Service Kondapur Hyderabad Call +91-8250192130
VIP Call Girls Service Kondapur Hyderabad Call +91-8250192130Suhani Kapoor
 
APPLICATIONS-AC/DC DRIVES-OPERATING CHARACTERISTICS
APPLICATIONS-AC/DC DRIVES-OPERATING CHARACTERISTICSAPPLICATIONS-AC/DC DRIVES-OPERATING CHARACTERISTICS
APPLICATIONS-AC/DC DRIVES-OPERATING CHARACTERISTICSKurinjimalarL3
 
Porous Ceramics seminar and technical writing
Porous Ceramics seminar and technical writingPorous Ceramics seminar and technical writing
Porous Ceramics seminar and technical writingrakeshbaidya232001
 
Microscopic Analysis of Ceramic Materials.pptx
Microscopic Analysis of Ceramic Materials.pptxMicroscopic Analysis of Ceramic Materials.pptx
Microscopic Analysis of Ceramic Materials.pptxpurnimasatapathy1234
 
IMPLICATIONS OF THE ABOVE HOLISTIC UNDERSTANDING OF HARMONY ON PROFESSIONAL E...
IMPLICATIONS OF THE ABOVE HOLISTIC UNDERSTANDING OF HARMONY ON PROFESSIONAL E...IMPLICATIONS OF THE ABOVE HOLISTIC UNDERSTANDING OF HARMONY ON PROFESSIONAL E...
IMPLICATIONS OF THE ABOVE HOLISTIC UNDERSTANDING OF HARMONY ON PROFESSIONAL E...RajaP95
 
Call Girls Service Nagpur Tanvi Call 7001035870 Meet With Nagpur Escorts
Call Girls Service Nagpur Tanvi Call 7001035870 Meet With Nagpur EscortsCall Girls Service Nagpur Tanvi Call 7001035870 Meet With Nagpur Escorts
Call Girls Service Nagpur Tanvi Call 7001035870 Meet With Nagpur EscortsCall Girls in Nagpur High Profile
 
the ladakh protest in leh ladakh 2024 sonam wangchuk.pptx
the ladakh protest in leh ladakh 2024 sonam wangchuk.pptxthe ladakh protest in leh ladakh 2024 sonam wangchuk.pptx
the ladakh protest in leh ladakh 2024 sonam wangchuk.pptxhumanexperienceaaa
 

Recently uploaded (20)

Call Us -/9953056974- Call Girls In Vikaspuri-/- Delhi NCR
Call Us -/9953056974- Call Girls In Vikaspuri-/- Delhi NCRCall Us -/9953056974- Call Girls In Vikaspuri-/- Delhi NCR
Call Us -/9953056974- Call Girls In Vikaspuri-/- Delhi NCR
 
UNIT-V FMM.HYDRAULIC TURBINE - Construction and working
UNIT-V FMM.HYDRAULIC TURBINE - Construction and workingUNIT-V FMM.HYDRAULIC TURBINE - Construction and working
UNIT-V FMM.HYDRAULIC TURBINE - Construction and working
 
247267395-1-Symmetric-and-distributed-shared-memory-architectures-ppt (1).ppt
247267395-1-Symmetric-and-distributed-shared-memory-architectures-ppt (1).ppt247267395-1-Symmetric-and-distributed-shared-memory-architectures-ppt (1).ppt
247267395-1-Symmetric-and-distributed-shared-memory-architectures-ppt (1).ppt
 
(ANJALI) Dange Chowk Call Girls Just Call 7001035870 [ Cash on Delivery ] Pun...
(ANJALI) Dange Chowk Call Girls Just Call 7001035870 [ Cash on Delivery ] Pun...(ANJALI) Dange Chowk Call Girls Just Call 7001035870 [ Cash on Delivery ] Pun...
(ANJALI) Dange Chowk Call Girls Just Call 7001035870 [ Cash on Delivery ] Pun...
 
(ANVI) Koregaon Park Call Girls Just Call 7001035870 [ Cash on Delivery ] Pun...
(ANVI) Koregaon Park Call Girls Just Call 7001035870 [ Cash on Delivery ] Pun...(ANVI) Koregaon Park Call Girls Just Call 7001035870 [ Cash on Delivery ] Pun...
(ANVI) Koregaon Park Call Girls Just Call 7001035870 [ Cash on Delivery ] Pun...
 
Sheet Pile Wall Design and Construction: A Practical Guide for Civil Engineer...
Sheet Pile Wall Design and Construction: A Practical Guide for Civil Engineer...Sheet Pile Wall Design and Construction: A Practical Guide for Civil Engineer...
Sheet Pile Wall Design and Construction: A Practical Guide for Civil Engineer...
 
High Profile Call Girls Nagpur Meera Call 7001035870 Meet With Nagpur Escorts
High Profile Call Girls Nagpur Meera Call 7001035870 Meet With Nagpur EscortsHigh Profile Call Girls Nagpur Meera Call 7001035870 Meet With Nagpur Escorts
High Profile Call Girls Nagpur Meera Call 7001035870 Meet With Nagpur Escorts
 
High Profile Call Girls Nagpur Isha Call 7001035870 Meet With Nagpur Escorts
High Profile Call Girls Nagpur Isha Call 7001035870 Meet With Nagpur EscortsHigh Profile Call Girls Nagpur Isha Call 7001035870 Meet With Nagpur Escorts
High Profile Call Girls Nagpur Isha Call 7001035870 Meet With Nagpur Escorts
 
(PRIYA) Rajgurunagar Call Girls Just Call 7001035870 [ Cash on Delivery ] Pun...
(PRIYA) Rajgurunagar Call Girls Just Call 7001035870 [ Cash on Delivery ] Pun...(PRIYA) Rajgurunagar Call Girls Just Call 7001035870 [ Cash on Delivery ] Pun...
(PRIYA) Rajgurunagar Call Girls Just Call 7001035870 [ Cash on Delivery ] Pun...
 
Introduction to Multiple Access Protocol.pptx
Introduction to Multiple Access Protocol.pptxIntroduction to Multiple Access Protocol.pptx
Introduction to Multiple Access Protocol.pptx
 
Structural Analysis and Design of Foundations: A Comprehensive Handbook for S...
Structural Analysis and Design of Foundations: A Comprehensive Handbook for S...Structural Analysis and Design of Foundations: A Comprehensive Handbook for S...
Structural Analysis and Design of Foundations: A Comprehensive Handbook for S...
 
MANUFACTURING PROCESS-II UNIT-5 NC MACHINE TOOLS
MANUFACTURING PROCESS-II UNIT-5 NC MACHINE TOOLSMANUFACTURING PROCESS-II UNIT-5 NC MACHINE TOOLS
MANUFACTURING PROCESS-II UNIT-5 NC MACHINE TOOLS
 
(SHREYA) Chakan Call Girls Just Call 7001035870 [ Cash on Delivery ] Pune Esc...
(SHREYA) Chakan Call Girls Just Call 7001035870 [ Cash on Delivery ] Pune Esc...(SHREYA) Chakan Call Girls Just Call 7001035870 [ Cash on Delivery ] Pune Esc...
(SHREYA) Chakan Call Girls Just Call 7001035870 [ Cash on Delivery ] Pune Esc...
 
VIP Call Girls Service Kondapur Hyderabad Call +91-8250192130
VIP Call Girls Service Kondapur Hyderabad Call +91-8250192130VIP Call Girls Service Kondapur Hyderabad Call +91-8250192130
VIP Call Girls Service Kondapur Hyderabad Call +91-8250192130
 
APPLICATIONS-AC/DC DRIVES-OPERATING CHARACTERISTICS
APPLICATIONS-AC/DC DRIVES-OPERATING CHARACTERISTICSAPPLICATIONS-AC/DC DRIVES-OPERATING CHARACTERISTICS
APPLICATIONS-AC/DC DRIVES-OPERATING CHARACTERISTICS
 
Porous Ceramics seminar and technical writing
Porous Ceramics seminar and technical writingPorous Ceramics seminar and technical writing
Porous Ceramics seminar and technical writing
 
Microscopic Analysis of Ceramic Materials.pptx
Microscopic Analysis of Ceramic Materials.pptxMicroscopic Analysis of Ceramic Materials.pptx
Microscopic Analysis of Ceramic Materials.pptx
 
IMPLICATIONS OF THE ABOVE HOLISTIC UNDERSTANDING OF HARMONY ON PROFESSIONAL E...
IMPLICATIONS OF THE ABOVE HOLISTIC UNDERSTANDING OF HARMONY ON PROFESSIONAL E...IMPLICATIONS OF THE ABOVE HOLISTIC UNDERSTANDING OF HARMONY ON PROFESSIONAL E...
IMPLICATIONS OF THE ABOVE HOLISTIC UNDERSTANDING OF HARMONY ON PROFESSIONAL E...
 
Call Girls Service Nagpur Tanvi Call 7001035870 Meet With Nagpur Escorts
Call Girls Service Nagpur Tanvi Call 7001035870 Meet With Nagpur EscortsCall Girls Service Nagpur Tanvi Call 7001035870 Meet With Nagpur Escorts
Call Girls Service Nagpur Tanvi Call 7001035870 Meet With Nagpur Escorts
 
the ladakh protest in leh ladakh 2024 sonam wangchuk.pptx
the ladakh protest in leh ladakh 2024 sonam wangchuk.pptxthe ladakh protest in leh ladakh 2024 sonam wangchuk.pptx
the ladakh protest in leh ladakh 2024 sonam wangchuk.pptx
 

00_Introduction.pdf

  • 1. Process Safety and Control Integrity and Reliability of Networks and Distributed Systems Summer Term 2022 Prof. Dr.-Ing. Andreas Bück Institute of Particle Technology Friedrich-Alexander-Universität Erlangen-Nürnberg Prof. Dr.-Ing. A. Bück | LFG | Summer Term 2022
  • 2. Introduction 2 What is this course about? § Many industrial and civil functions are realised as networks (SmartSystems, IoT) § CEP: distributed energy generation, transmission through power grids § How can we guarantee the function of complex networks (structurally)? § How to defend the network against external influences (natural or not)? [Wikipedia.org/Power grid]
  • 4. Introduction 4 Topics - Introduction to process safety concepts - Description and analysis of networks (introduction to graph theory) - Steady-state analysis of network structure and function (Boolean analysis, Fault tree analysis) - Reliability analysis and improvement by redundancy and control (Statistics and Monte Carlo simulations) - Cyber security: Detecting and deflecting attacks on networks § Analysis: by hand (pen and paper), computationally (programming required)
  • 5. Introduction 5 Schedule § One lecture per week: Wed, 10:00 – 12:00 § One seminar per week: Wed, 14:00 – 16:00 Reality § One lecture per week: Wed, 10:00 – 12:00 § Seminars: (a) self-study, (b) in-person (approx. bi-weekly rotation) Task sheets for each seminar will be provided. Students are expected to work on them individually in the self-study period. Discussion and solutions will be provided in the in-person seminars. Final schedule will be published in this week (StudOn).
  • 6. Introduction 6 Material § Lecture notes will be made available before the lectures (slides, texts, …) § Notes will be supplemented by material (e.g., research articles) as we go along § Task sheets will be uploaded approx. one week before self-study seminar § Also: Discussion forum will be installed (mostly for you, I will have a look sometimes)
  • 7. Introduction 7 Grading Exam (100%): oral, ca. 30 min Practical: Additional ECTS points (please check whether you want/need them) § Get in contact, if you want to take the practical. Tasks will be distributed beginning of the second half of this course. Incentive programme On each task sheets, there will be one (extended) task. Successful completion of the task will be rewarded by 1 point. If more than three points are achieved (> 3 points), an improvement of the final degree by 0.3 will be granted. Solution to the task need to be handed in two days before the next in-person session (email).