Showing posts with label engineering. Show all posts

Tuesday, 23 March 2021

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Engineering Blockchain Applications

UK assignment helper March 23, 2021

Course Description

Blockchain technology is revolutionizing digitalization prospects for many industries and emerging as an exciting and rapidly growing field. By detailing the architecture of the technology, this course ensures that learners will be well versed in blockchain fundamentals. At the same time, it is designed to put learners on the leading edge by presenting the abstract nature of blockchain technology and emphasizing its broad applicability. Topics include the mathematical and cryptographic underpinnings of the technology, as well as mining, consensus protocols, networking, and decentralized governance.

Learning Outcomes

By completing this course you will be able to:

· Apply the Elliptic Curve Digital Signature Algorithm to identity management and computer security

· Determine the validity of chains given general consensus rules

· Determine whether changes in consensus rules for a Nakamoto network will result in a successful protocol fork

· Compare proof-of-work secured blockchains’ security to alternate security methods

· Evaluate an optimal mix of network design and operational parameters to ensure network scalability and throughput

· Evaluate the trade-off between security and computational complexity

· Use Hyperledger Fabric to build a custom network configuration

· Use Hyperledger Composer to build a business application

· Create your own decentralized blockchain network

· Change/add logic to a code base of a dash blockchain (forked from bitcoin)

Estimated Workload/Time Commitment

Average of 15-20 hours per week

Required Prior Knowledge and Skills

● Algebra

● Programming in Python and C++

Recommended Prior Knowledge and Skills

● Programming in node.js, Docker, Unix

Technology Requirements

Hardware

Standard with recent major OS NOTE: Linux recommended.

Software and Other

Standard

Textbook

There is no required textbook for this course; however, the course creators recommend the following text:

Bitcoin and Cryptocurrency TechnologiesA Comprehensive Introduction, Arvind Narayanan, Joseph Bonneau, Edward Felten, Andrew Miller & Steven Goldfeder (2016)

Required course readings are provided within or accessible through the course. You will find them in the week each one is assigned.

Course Content

Instruction Assessments

Video lectures

Course Grade Breakdown

NOTICE: The projects for this course are eligible, together, for inclusion in your MCS Portfolio. You may submit your portfolio report for consideration by the course instructor within the course at its conclusion.

Grade Scale

NOTE: You must earn a cumulative grade of 70% to earn a “C” in this course. Grades in this course will not include pluses

Key Course Dates

Class begins: January 7, 2019

Holiday: January 21, 2019: Martin Luther King Jr. Day (university closed)

Project 1: February 1, 2019

Project 2: February 22, 2019

Final exam and class ends: February 26, 2019

Grades due: March 3, 2019

Important Notice: Unless otherwise noted, all graded work is due at 11:59 p.m. on the Friday of the week for which it is assigned. Late penalties will be applied for work received or completed after the scheduled due date and time:

· Graded assignments: One-time 20% penalty

· Graded quizzes: One-time 15% penalty

Live Events - Weekly (meet with the course instructor and your classmates to learn more about course topics and discuss assignments):

Tuesday from 10:00-1100 a.m. Arizona time (check the Live Events page in the course for your local time and access details)

Note: These events will be recorded and uploaded to the course.

ATTENTION: The live event for the week of 1/21/19 will be held on Wednesday (not Tuesday) from 10:00-11:00 a.m. Arizona time. The Zoom link is unchanged.

Virtual Office Hours - Weekly (another chance to get your questions answered from the course instructor):

Wednesday from 1:00-200 p.m. Arizona time (check the Live Events page in the course for your local time and access details)

Course Outline

Week/Unit 1: The Blockchain’s Abstractions and Applications

Module 1: Introduction to Blockchain Technology Module 2: Benefits of Blockchain Technology Module 3: Blockchain Applications

Module 4: The Blockchain Ecosystem

Week/Unit 2: Hash Functions

Module 1: Introduction to Hash Functions

Module 2: Hash Functions for Password Handling Module 3: Application-Appropriate Hash Function Module 4: Merkle Trees and Merkle Proofs

Week/Unit 3: Cryptographic and Mathematical Foundations of the Blockchain

Module 1: Elliptical Curves Digital Signatures Module 2: Private Key Handling

Module 3: Other Mathematical Concepts

Week/Unit 4: Transactions on the Blockchain

Module 1: Introduction to Transactions Module 2: Scripts

Module 3: State Channels Module 4: Wallets

Week/Unit 5: Mining

Module 1: Introduction to Mining Module 2: Mining and Network Attacks Module 3: Mining Pools

Module 4: Mining Considerations

Week/Unit 6: Blockchain Consensus

Module 1: Introduction to Blockchain Consensus Module 2: Consensus Algorithms

Week/Unit 7: Peer-to-Peer Networks

Module 1: Introduction to Computer Network Architecture Module 2: Nodes

Module 3: Block Propagation Module 4: SPV Clients

Week/Unit 8: Governance

Module 1: Decision-Making on Decentralized Networks Module 2: Hard and Soft Forks

Module 3: Network Signaling

Module 4: Two-Tiered Network Governance

Policies

All ASU and Coursera policies will be enforced during this course. For policy details, please consult the MCS Graduate Handbook 2018 •- 2019 and/or the MCS Onboarding Course.

Course Creators

The following faculty members created this course.

Dragan Boscovic

Dragan Boscovic is a research professor in the School of Computing, Informatics, & Decision Systems Engineering (CIDSE), as well as Technical Director of CIDSE’s Center for Assured and Scalable Data Engineering and Distinguished Visiting Scholar, mediaX, at Stanford University. Dr. Boscovic also leads ASU’s Blockchain Research Lab, where his team’s mission is to advance the research and development of blockchain-based technologies for use in business, finance, economics, mathematics, computer science, and all other areas of potential impact.

He holds a Ph.D. in EE and CS, Numerical Electromagnetic Modeling from University of Bath, United Kingdom (1991) and a Magistar in EE, eq. Ph.D., Microwave and Optoelectronics from

University of Belgrade, Serbia (1988). He has 25 years of high tech experience acquired in an international set up (i.e. UK, France, China, USA) and is uniquely positioned to help data-driven technical advances within today’s global data-intensive technology arena. He is a lateral thinker with broad exposure to a wide range of scientific methods and business practices and has a proven track record in conceiving strategies and managing development, investment and innovation efforts as related to advanced data analysis services, user experience, and mobile and IoT solutions and platforms.

Darren Tapp

Darren Tapp was involved in the development of Bitcoin and is now a researcher on the digital cash (cryptocurrency) development team at dash.org, a non-profit blockchain technology startup. He earned his doctorate in mathematics from Purdue University in 2007 and holds both a bachelor’s degree in physics and mathematics and a master’s degree in mathematics from the University of Kentucky. Most recently he has taught both on-ground and online at schools including Southern New Hampshire University, NHTI - Concord's Community College, and Hesser College. He lives in New Hampshire, where he volunteers promoting STEM subjects to high-school-aged members of the Big Fish Learning Community.

Acknowledgements

The faculty wish to thank the following students and blockchain community members for their contributions to this course:

Jeremy Liu Nakul Chawla Raj Sadaye

About ASU

Established in Tempe in 1885, Arizona State University (ASU) has developed a new model for the American Research University, creating an institution that is committed to access, excellence and impact.

As the prototype for a New American University, ASU pursues research that contributes to the public good, and ASU assumes major responsibility for the economic, social and cultural vitality of the communities that surround it. Recognizing the university’s groundbreaking initiatives, partnerships, programs and research, U.S. News and World Report has named ASU as the most innovative university all three years it has had the category.

The innovation ranking is due at least in part to a more than 80 percent improvement in ASU’s graduation rate in the past 15 years, the fact that ASU is the fastest-growing research university in the country and the emphasis on inclusion and student success that has led to more than 50 percent of the school’s in-state freshman coming from minority backgrounds.

About Ira A. Fulton Schools of Engineering

Structured around grand challenges and improving the quality of life on a global scale, the Ira A. Fulton Schools of Engineering at Arizona State University integrates traditionally separate disciplines and supports collaborative research in the multidisciplinary areas of biological and health systems; sustainable engineering and the built environment; matter, transport and energy; and computing and decision systems. As the largest engineering program in the United States, students can pursue their educational and career goals through 25 undergraduate degrees or 39 graduate programs and rich experiential education offerings. The Fulton Schools are dedicated to engineering programs that combine a strong core foundation with top faculty and a reputation for graduating students who are aggressively recruited by top companies or become superior candidates for graduate studies in medicine, law, engineering and science.

About the School of Computing, Informatics, & Decision Systems Engineering

The School of Computing, Informatics, and Decision Systems Engineering advances developments and innovation in artificial intelligence, big data, cybersecurity and digital forensics, and software engineering. Our faculty are winning prestigious honors in professional societies, resulting in leadership of renowned research centers in homeland security operational efficiency, data engineering, and cybersecurity and digital forensics. The school’s rapid growth of student enrollment isn’t limited to the number of students at ASU’s Tempe and Polytechnic campuses as it continues to lead in online education. In addition to the Online Master of Computer Science, the school also offers an Online Bachelor of Science in Software Engineering, and the first four-year, completely online Bachelor of Science in Engineering program in engineering management.

Tuesday, 6 October 2020

architecture, assignment, assignment help, assignmentservices, assignmentwriting, design, engineering, engineeringassignment, keys, primary, primary keys, relationship, studenthelp, study analysis, UK

What is Database system ?

UK assignment helper October 06, 2020

MITS4003

Database Systems

Assignment 1

August 2020

Objectives(s)

This assessment item relates to the unit learning outcomes as in the unit descriptor. This assessment is designed to improve students’ skills to analyze organization database requirements, develop a data model to reflect the organization’s business rules and use data manipulation language to manage database. This assessment covers the following LOs.

1. Synthesize user requirements/inputs and analyse the matching data processing needs, demonstrating adaptability to changing circumstances;

2. Develop an enterprise data model that reflects the organization's fundamental business rules; refine the conceptual data model, including all entities, relationships, attributes, and business rules.

3. Derive a physical design from the logical design taking into account application, hardware, operating system, and data communications networks requirements;

Case Study:

Prestige Automobile Rental (PAR) is a vehicle rental company that rents old vehicles to the public. PAR has been using manual methods for keeping track of their customers and their rentals. However, the company would now like to go online and allow customers to search the available vehicles and see their rental history.

For the first time, when the customer rents a vehicle from PAR their details (name, address, phone number, driving license number and credit card number) are recorded. The date they become a customer is also stored. There are certain types of vehicles which are classified as heavy vehicles. It is a policy of PAR that these vehicles are only rented to customers who have no demerit points on their driving license.

The information about the vehicle (type, registration number, year/make/model, vin number, distance travelled and current condition) are also stored. Each vehicle has a unique ID. The customer can search for their desired vehicle and can see if it is available.

All rentals are for 7 days. Rental charges are based on the type of vehicle (Car (C) or Heavy Duty (HD)). Rental must be paid for on collection. Customers can rent up to 2 vehicles at a time. Each rentalID is for a single vehicle for one customer. (The rentalID is an auto number). When the rental is taken out the date of checkout is recorded along with calculated due date (7 days from checkout date). When the rental is returned, the date is recorded in the returned date.

PAR would like to store ‘demerit’ points for the renter in order to identify bad renters. These demerit points are accumulated at a rate of one point per day a rental is overdue. PAR will cancel the membership of the customers who have too many demerit points.

Assignment Requirements and Deliverables:

Part A - 10% (Due in week 5)

Submitted as a MS Word Document

• Develop an Entity Relationship Diagram

• Relational Schema (including Primary, Foreign Keys and all attributes).

• Supplementary Design requirements (data attribute information)

• Discuss physical design and any assumptions made during design

Marking Guide:

Marking Guide:	Marking Guide: Unacceptable	Acceptable	Good	Excellent
Entities, Primary Keys, Relationship	Does not adequately have all required Entities, Primary Keys and Relationship in ER diagram	Partially have all required Entities, Primary Keys, and Relationship in ER diagram	Most of the required Entities, Primary Keys and Relationship are there in ER diagram	All Entities, Primary Keys and Relationship are there in ER diagram
Relational Schema	Does not adequately have required tables, Primary Keys and Foreign keys	Partial have required tables, Primary Keys and Foreign keys.	Most of the required tables, Primary Keys and Foreign keys are there.	All tables, Primary Keys and Foreign keys are there.
Supplementary Design Requirements	Does not adequately have required attributes.	Partially have required attributes.	Mentioned most of the required attributes.	All required attributes are there.
Discussed physical design	Adequately discussed about relationship in physical design.	Partially discussed about relationship in physical design.	Covered most of the relationship in discussion.	Covered all relationship in discussion.

Wednesday, 30 September 2020

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Business Information Systems

UK assignment helper September 30, 2020

MITS4001

Business Information Systems

Case Study and Presentation

September 2020

Case Study Report (Individual Assignment) - 10% (Due Session 5)

The assessment assess the following learning outcomes:

1. Adapt information systems to strategically achieve organisational goals and be able to design, develop and manage IT systems implementation to achieve Business IT Alignment.

2. Develop an IT Plan that designs, implements and manages the technology supporting these information systems including computing devices, storage and processing (both systems processing and application processing).

3. Identify, synthesize and model individual functions of a database system to be used for organization data management and decision making.

INSTRUCTIONS

For this component of assessment, you are to prepare a report based on the case study below and the tasks that follow it. Your report should be limited to approx. 1400 words (not including references). Use 1.5 spacing with a 12 point Times New Roman font. You should include references in your report and these and must be in the IEEE style.

Submission Guidelines

All submissions are to be submitted through turn-it-in. Drop-boxes linked to turn-it-in will be set up in the Unit of Study Moodle account. Assignments not submitted through these dropboxes will not be considered. Submissions must be made by the due date and time (which will be in the session detailed above) and determined by the Unit facilitator. Submissions made after the due date and time will be penalized at the rate of 10% per day (including weekend days).

The turn-it-in similarity score will be used in determining the level if any of plagiarism. Turn-it-in will check conference web -sites, Journal articles, the Web and your own class member submissions for plagiarism. You can see your turn-it-in similarity score when you submit your assignment to the appropriate drop-box. If this is a concern you will have a chance to change your assignment and re-submit. However, re-submission is only allowed prior to the submission due date and time. After the due date and time have elapsed you cannot make resubmissions and you will have to live with the similarity score as there will be no chance for changing. Thus, plan early and submit early to take advantage of this feature. You can make multiple submissions, but please remember we only see the last submission, and the date and time you submitted will be taken from that submission. Your document should be a single word or pdf document containing your report.

Case Study: United Kingdom Passport Agency

The United Kingdom Passport Agency was established as an Executive Agency of the Home Office in April 1991. Its main aim was to provide passport services for British nationals in the United Kingdom promptly and economically. In 1998–99, the Agency employed an average of almost 1,800 staff in its passport offices in Belfast, Glasgow, Liverpool, London, Newport and Peterborough. The Agency’s financial objective is to recover, via the passport fee, the full cost of passport services; the full cost includes the cost of non-fee bearing consular services provided by the Foreign and Commonwealth Office to UK citizens abroad.

In July 1996 the United Kingdom Passport Agency decided to introduce the idea of digital passports in an attempt to minimise the risk of fraudulent use of passports. To do this the agency needed to replace its existing ICT system. It was envisaged that this would be done through a private finance initiative or outsourcing contract. The contractor bids were received in April 1997 and in June of that year a 10-year PFI contract was awarded to The Stationery Office (now Security Printing and Systems limited) for the printing and dispatching of digital passports, valued at 120 million GBP. In July of 1997 the Agency awarded a 10-year PFI contract for a similar value of 120 million GBP to Siemens Business Services for the collection, storage and transmission of passport application data. This included the development of a new ICT system for this purpose.

In April 1998 an announcement was made that from October of that year children not already on their parents’ passport would require their own passports to travel abroad.

In October 1998 the new information system (ICT system and procedures, including those outsourced) were introduced in the Agency’s Liverpool office. One hundred Agency staff transferred over to Siemens. In November of the same year the new information system was rolled-out at the Newport office. Ninety-six staff transferred over to Siemens at this office. During the following summer of 1999 a number of problems were experienced by the Passport Agency. Over a half a million British citizens were less than happy to discover that their new passports could not be issued on time for them to take their holiday. In June 1999, processing times for passport applications were taking up to 50 working days. Emergency measures were introduced by the Home Office in July 1999 – including free two-year extensions to passports. Coupled with a downturn in applications, these measures helped bring maximum processing times back within the Agency’s 10 working day target by the end of August. However, the Home Office had to pay millions in compensation to citizens and in staff overtime required for managing the backlog of applications.

This information systems failure appears to have been due to a number of factors. The change in the law on child passports was introduced at roughly the same time as the introduction of the new information system.

The change in legislation caused a significant increase in the volume of applications for the Summer of 1999. In May of that year, monthly output was 619,000 compared to a peak of 564,000 in the previous year. By June, the Passport Agency had around 565,000 applications still awaiting processing.

The introduction of a new passport processing system in two of the Agency’s six offices was exacerbated by a failure to assess and test adequately the time needed by staff to learn and work the new passport processing system. The new system involved changes in clerical and administrative processes as well as computerisation. A four-month delay before the start of testing the new system, and testing its impact on productivity was not completed before it went live in late 1998.

There was insufficient contingency planning in the event that implementation of the new system might not go according to plan. Despite the Passport Agency’s experience of the flawed roll-out of its previous computer system in 1989, the agency launched the new system in its largest offices, Liverpool and Newport, which accounted for half its normal processing capacity. The strategy adopted by the Agency in early 1999 to get through the busy season rested on its past experience that it would be able to increase output by increasing overtime and hiring casual staff. A recovery plan was agreed between the Agency and the Home Office in March, including the recruitment of extra staff. However, the Agency did not foresee the loss in public confidence, which led to a sharp increase in applications and enquiries about them, once the delays attracted publicity.

The agency was also criticised in its failure to communicate effectively with the public, both at a personal level in dealing with calls from the public to its telephone enquiry bureau, and more generally via the media.

A National Audit Office Inquiry (NAO, 1999) estimated that the cost of the additional measures taken by the Agency to deal with the failures during the year from October 1998 was around 12.6 million GBP, including 6 million GBP for additional staffing. The contract allowed Siemens to take responsibility for the risk associated with design and delivery of the system. However, the risk associated with business continuity remained with the Passport Agency. As a result the agency incurred extra costs of 12.6 million GBP, with Siemens paying just 2.45 million GBP, spread over several years.

Not surprisingly, the Inquiry highlighted a number of important lessons. First, the need for proper testing of new systems before committing to live operation. Second, for staff to be adequately trained in the use of new ICT systems and in new procedures required. Third, the need to have realistic contingency plans in place. Fourth, the need, when service delivery is threatened, to have the capability to keep the public well informed.

Tasks

 Elaborate the importance of business information systems, in achieving the goals of United Kingdom passport agency and address the issues, which may occur if the system was to be updated in 2020.

 Develop an upgrade plan of the business information system of the United Kingdom passport agency, considering the following key requirements:

o Computational requirements

o Processing requirements

 Using the internet as a resource, critically analayse the possible database systems, which could be employed by the agency for data management and decision making

Marking Guide: 50 Marks

Task	Description	Marks
Introduction	This section should include a few sentences which provide an outline of the assignment	5
Report Layout	The report style, language, and structure should be appropriate.	5
Elaborate	Elaborate the importance of business information systems, in 10 achieving the goals of United Kingdom passport agency and address the issues, which may occur if the system was to be updated in 2020.	10
Develop	Develop an upgrade plan of the business information system of the 10 United Kingdom passport agency, considering the following key requirements: • Computational requirements • Processing requirements	10
Critical Analysis	Using the internet as a resource, critically analayse the possible 10 Analysis database systems, which could be employed by the agency for data management and decision making	10
Conclusion	Summary of the report.	5
References	Follow the IEEE style	5