Smart Card System
Chapter 1: Client- Server Technology .1 Client-Server Concept and Architecture The term "client/server" implies that clients and servers are separate logical entities that work together, usually over a network, to accomplish a task. Client/server is more than a client and a server communicating across a network. Client/server uses asynchronous and synchronous messaging techniques with the assistance of middle-ware to communicate across a network. Client/Server uses this approach of a client (UI) and the server (database I/O) to provide its robust distributed capabilities. The company, Sigma has used this technique for over 15 years to allow its products to be ported to multiple platforms, databases, and transaction processors while retaining a product's marketability and enhanced functionality from decade to decade. Sigma's client/server product uses an asynchronous approach of sending a message to request an action and receives a message containing the information requested. This approach allows the product to send intensive CPU processing requests to the server to perform and return the results to the client when finished. Sigma's architecture is based on re-usability and portability. Sigma currently uses a standard I/O routine, which is mutually exclusive from the user interface. Sigma's current architecture supports character-based screens and a variety of
CP3 - Proposed Solution to a Realistic Problem - Apartment Administration software
CP3 - WJEC COURSEWORK Analyse, Design, Implement and Document a Proposed Solution to a Realistic Problem Title: Apartment booking software Author: Joe Ainsworth Chapter 1 - CONTENTS CHAPTER 1 - CONTENTS 1-1 CHAPTER 2 - ANALYSIS 2-2 BACKGROUND 2-2 ANALYSIS OF CURRENT SYSTEM 2-4 SECTION 2.1 - PROBLEM DEFINITION 2-8 SECTION 2.2 - OBJECTIVES 2-9 CHAPTER 3 - DESIGN 3-10 SECTION 3.1 - JUSTIFICATION OF THE PROPOSED SOLUTION 3-11 SECTION 3.2 - MODES OF OPERATION 3-14 SECTION 3.3 - HARDWARE AND SOFTWARE REQUIREMENTS 3-15 SECTION 3.4 - USER AND/OR OPERATOR INTERFACE 3-16 SECTION 3.5 - FILES CONTENT, STRUCTURE AND ACCESS 3-19 SECTION 3.6 - PROCESSING STAGES 3-21 SECTION 3.7 - TESTING STRATEGY 3-24 CHAPTER 4 - TIME PLAN 4-26 SECTION 4.1 - OVERALL TIME PLAN 4-27 CHAPTER 5 - IMPLEMENTATION 5-28 CHAPTER 6 - PROGRAM DOCUMENTATION 6-30 SECTION 6.1 - ANNOTATED LISTING 6-31 SECTION 6.2 - PROCEDURES/ SUBROUTINE DETAILS 6-66 SECTION 6.3 - CROSS-REFERENCED LIST OF VARIABLES USED 6-73 CHAPTER 7 - TESTING 7-74 SECTION 7.1 - TEST DATA/EXPECTED RESULTS 7-75 SECTION 7.2 - ACTUAL TEST RUNS 7-79 CHAPTER 8 - EVALUATION 8-83 SECTION 8.1 - EVALUATION OF THE IMPLEMENTED SYSTEM 8-84 CHAPTER 9 - USER DOCUMENTATION 9-86 SECTION 9.1 - INSTALLATION 9-87 SECTION 9.2 - USE 9-88 CHAPTER 10 - BIBLIOGRAPHY 10-89 Chapter 2 - Analysis Select and analyse a real problem. Use
Flexible Architectures in Communication Security Application
Master of Science in Computer Science and Engineering Thesis: Flexible Architectures in Communication Security Application Bryan Chong Advanced Computer Architecture Laboratory University of Michigan Ann Arbor, MI 48109 Table of Contents Acknowledgement............................................................................................ 5 Abstract ........................................................................................................ 7 Chapter 1 Introduction..................................................................................... 9 Section 1.1 Cryptography............................................................................. 9 Section 1.2 Contribution of This Thesis ...........................................................11 Chapter 2 The Nature of Cryptography ................................................................13 Chapter 3 Cipher Kernel Analysis ......................................................................17 Section 3.1 Cipher Analysis Tools..................................................................17 Section 3.2 Cipher Throughput Analysis ..........................................................18 Section 3.3 Bottleneck Analysis ....................................................................19 Section 3.4 Cipher Relative Run Time
Machine Shack Management System.
Machine Shack Management System Table Of Contents ANALYSIS 6 .1 Background Information 6 .2 Problems with current System 6 .3 Manager Interview 6 .4 Identification of prospective user(s)? 7 .5 User Requirements and acceptable limitations 7 .6 Potential Solution 8 .6.1 Technical feasibility 8 .6.2 Economical Feasibility 9 .7 Justification of Chosen Solution 9 .8 Data source(s) and destinations(s) 10 .9 Dataflow Diagram (level 1) for new system 10 .10 Entity-Relationship diagram 10 .11 Targets of New System 11 2 DESIGN 13 2.1 Structure Diagram 13 2.2 System Flow Chart 14 2.3 Data Storage and Organisation 15 2.3.1 Definition of data requirements 15 2.3.2 Identification of Storage Media and Format 15 2.4 Algorithms for data transformation 16 2.5 Identification Validations 16 2.6 User Interface (design of input and output forms) 16 2.6.1 Password 16 2.6.2 Menu System 17 2.6.3 Menu select function 17 2.6.4 Main Menu diagram 18 2.7 Data Capture 19 2.7.1 Input Forms and Output Forms 19 2.8 Sample of planned data validation 22 2.9 Description of record or database structure 22 2.10 Sample of Planned data entry 23 2.11 Sample of planned valid output 23 2.12 File Organisation and Processing 24 2.13 Database design including E-R Model 24 2.14 Security and Integrity of Data 24 2.15 System Security 24 2.16 Overall Test Strategy 25 2.16.1 Test Strategy
Computing Project
Analysis . Background to/identification of the problem I came up with my project idea through a problem my friend, a shop clerk, who runs a DVD rental shop, had faced. He used to rent out DVDs to his registered customers for the price of £1.50 for old DVD's and £3.00 for DVD's which are pretty new but the problem was that he had to do everything without a computer system which made his job quite difficult for him. So I have decided to make a system for his video rental shop as my project which would make it easier for him. The general environment is him behind a counter surrounded by loads of DVDs so he is the only person who works in the shop, there is no staff but sometimes when required, he may get someone to cover for him if needed. The current system in operation works by a customer registering with the rental shop first they then receive their unique membership number which they then quote every time they want to rent a DVD out and then pay the rental price for that DVD. The shop clerk then looks for this membership number through a file which contains all the registered customers and their membership numbers, arranged in order from smallest to biggest and every time a new customer registers they get the next available membership number with in the file. The problem with the current system is that everything is done manually which is really time consuming and may
Definition-nature of the problem solved - Car Mechanic business
Contents Contents 1 Definition-nature of the problem solved 3 Description of Business 3 Current Method Used 3 Data Flow of Current System 5 Inefficiencies and Problems 6 Origins and Forms of Data 7 Initial Problem Definition 7 Investigation and Analysis 8 Methods of Fact Finding 8 Interview Notes 9 4.6 Current Data Structures 11 4.7 Requirements Specification 12 Output requirements 12 4.8 Agreement to Requirements 14 4.9 Alternate Solutions 14 4.10 Limitations of Chosen Solution 16 Design 17 Nature of the Solution 17 5.1.1 Objectives 17 5.1.2 System Structure 18 Design of Forms 19 Design of Reports 22 Design of Mail Merged Letters 23 Design of Data Capture Forms 24 Relationships 24 ERD- Entity Relationship Diagram 24 TRD- Table Relationship Diagram 24 Table Designs 25 Query Designs 25 Data Dictionary 28 System Security 33 Data Security 34 Intended Benefits 34 Limits and scope 35 Time Line 36 Software Development 37 Input, Output and processing printouts 37 Queries 40 Data Structures 40 Definition-nature of the problem solved Description of Business * Willcare is an independent car mechanic business. The business located near the owner's home where there are a number garages available. It is a small service business promoted by the owner and has been running around 20 years. The owner may employ some workers for a specific job, but
I have been given the task to design a database for a company called Postquick Parcels. Postquick Parcels is a company, which provides a parcel delivery service, which allows customers to send consignment parcels around the UK.
INTRODUCTION 4 The Systems Life Cycle 4 Methods of Gathering data 5 Problems of Present System 5 Objectives of the new system 6 DESIGN 7 The Feasibility of a Computer Based System 7 Hardware 7 Choices of Software 8 Excel 8 Access 9 High Level Language Such as Pascal 10 Evaluation of possible software solutions 10 Data requirements 11 The Data Flow 12 Data Flow Diagram 12 Entity-Relationship diagrams 12 Entity-Relationship diagrams 13 Entity-Relationship diagrams 14 System Design 15 Top Down Design 15 Modular Design 15 Outputs 18 Consignment Note: 18 Query outputs: 18 Forms 19 Menu 19 Reports 20 Methods of Data Entry 20 Record structure 21 Customer Records 21 Destination Records 21 Parcel Records 22 Order Records 22 File Organisation 22 Security and Integrity of Data 23 Integrity 23 Input Masks 23 Validation Rules 23 List Boxes 23 Safety 24 Back up recommendations 24 Security 24 Passwords 24 Encryption 24 Other Security Recommendations 24 IMPLEMENTATION 25 Starting with a simple Database 25 The Tables 25 Linking the Tables 27 Entering Data 28 Customer Data Form 28 Parcel Data Form 28 Destination Data Form 29 Order Data Form 30 Avoiding Human Errors using input masks 32 Validation Rules 33 Queries 34 Simple Queries 34 Parameter Queries 34 Finding Existing destination 34 Finding ID 36 Updating customer data 36 Total
White Soul System Designs - creating a computer system.
- Analysis .1 - Introduction White Soul System Designs is a small computer store that designs and makes many of its own systems and products. It is situated on Queen Street in the centre of Neath. Many people swear by White Soul products and go to the store for any product they wish to purchase or repairs their computers need. Manu people in Neath use this store because the prices of products are guarantied to be the lowest you can find, and the repair system, no fix no fee is very popular. At present only two full time staff members work there. The owner Mr. Adam Williams and his only member of staff Mr. John Edwards. The store is open form 9am - 5pm every weekday. On Saturdays it is open from 10am - 6pm and on Sundays it is closed all day. Only having two members of staff working eight hours a day, six days a week is very difficult. With increasing numbers of customers Mr. Edwards and Mr. Williams are under pressure to get every ones orders and files in order. Not having a computer system means Mr. Edwards and Mr. Williams have to file all the store customers and stock records manually. This manual system means mistakes are made and customer satisfaction is lowered. This undoubtedly means a loss in profits. This made Mr. Williams think that like their computer systems, they should be up to date. He is currently looking for a new system and approached me to
With diagrams compare and contrast the relative advantages and disadvantages of digital transmission over analogue transmission in modern communication systems
With diagrams compare and contrast the relative advantages and disadvantages of digital transmission over analogue transmission in modern communication systems. There are main types of transmission that are used by two different forms of signals from one computer to another computer and they are: > Analogue Transmission > Digital Transmission Analogue Transmission An analogue transmission has no break in the signal and the movement along the sine wave will never stop. So therefore the analogue transmission is continuous. The waves fluctuate (rise or fall) a certain amount of times per unit of time this type of fluctuation over time is called frequency. Frequency is measured in hertz, this means the large amount of fluctuations the higher the frequency. The frequency will then translate into higher notes. The low frequency will produce low deep notes. This signal also fluctuates in its loudness. The loudness is called amplitude. A low volume has low amplitude. In analogue transmission the physical quantity of the signal carrying the information through (amplitude, frequency, and phase) varies in a direct relationship to the information to be transmitted. Advantage of Analogue Transmission The advantage of analogue transmission that it has no break in the signal and it's always continuous. Disadvantage of Analogue Transmission The disadvantage of analogue
Analysis of Johnson Music
Analysis Background of company Johnson Music (JMusic) was founded in 1901 at its current premises as a guitar shop. It specialised in trading in old guitars, refurbishing them and selling them on. At first the company had very few customers, but gradually grew. By 1910 the company had reasonable success, and started selling guitars directly from manufacturers. The founder, George Johnson, noticed that some guitar brands didn't sell very well, and others did. One guitar brand that did sell well was Ibanez guitars. The company gradually started selling more Ibanez guitars, becoming more successful for the company. In 1950 the shop stopped selling all guitars other than Ibanez guitars and became a dedicated Ibanez dealer. The company soon moved on from guitars and started selling more than that, including pedals, amplifiers and bass guitars. This is how the company currently stands. Johnson music is owned by George Johnson, the son of the founder of the company. Its current location is: Johnson Music 7 Churchgate Bolton BL1 1HU UK. The shop has two floors. One floor stores bass guitars and bass amplifiers, as well as bass effects pedals. The second floor stores guitars and guitar amplifiers as well as guitar effects pedals. The shop has two storage rooms: one upstairs and one downstairs. Downstairs stores all bass guitar products and upstairs stores all guitar products.
