The input signal of the access control system includes:
Landing Lever position sensor: Two position value signal (up/down)
Car entry sensor: Two values (True/false)
Car Gate sensor: Two values (True/false)
The output signal of the access control system includes:
Motor control signal for landing lever: (Up/down)
Traffic light signal: (Red/green)
The passing process of a car is:
The landing lever is in the falling state and the traffic light is red.
Design (25) Software Design of desargue Theorem
Desargues theorem and 3D plot
.
(Draw only 3D images related to the desargues configuration)
Introduction
Introduction.
This paper introduces the desargues theorem, which is a beautiful geometric theorem recognized by the Chinese and foreign mathematics circles and is also a mathematical theorem most closely relate
Schlumberger Products:Merak Peep 2007.1-iso 1DVD (software for economic evaluation and yield reduction analysis to determine the economic viability of oil and gas extraction schemes)Petrel.v2008.1-iso 1CD (Integrated reservoir description software for exploration and development)Pipesim 2007.1-iso 1CD (Pipesim product system analysis software simulates steady-sta
management, and middleware platform. I have published articles on graphic ideas and UML applications, agile design from theory to practice, and on-demand changes to RUP in the media such as programmer magazine and IBM developsworks. 10. Translated into the application framework design and implementation-. NET platform. Founder of Song coupling space (www.ou-he.com) website.
Event organizer
Csdn [China
logic used, and so on. 1.11 Restrictions Describe the restrictions that are imposed on the operation of this program. The 1.12 test Plan describes the plan for the testing of this program, including the technical requirements of the test, input data, expected results, schedule, personnel duties, equipment conditions, driver and pile modules. 1.13 Unresolved issues describes the issues that the designer believes should be resolved before the software
Original Title: Code Simplicity: The Science of development by kanat-Alexander, M .) [Introduction to translators] Translator: Yu Sheng series name: Turing Program Design Series Press: People's post and telecommunications Press ISBN: 9787115302380 Release Date: January 2013 published on: 32: version 1: 1-1 category: Computer> Software Engineering and software met
After completing the requirements analysis of the software system, the next step is to design the software system. Generally speaking, software design is often divided into two stages for larger software projects. The first is the
After completing the requirements analysis of the software system, the next step is to design the software system. Generally speaking, software design is often divided into two stages for larger software projects. The first is a p
Design Pattern-the basis for reusable object-oriented software (Bilingual edition) (15th anniversary · Limited Edition)
[Original book name] design patterns: Elements of reusable object-oriented software[Original Publishing House] Addison-Wesley professional[Author] (US) Erich Gamma; Richard helm; Ralph Johnson; John v
Software design method (reproduced)
In order to solve a problem on the platform, the last basic discovery can be implemented after a long time.
During migration to the project, we found that there was an issue that could not be solved by the platform. The problem has not been solved for a long time, and it is even unclear where the problem exists.
At last, my colleagues analyzed the problem step by st
Label:Three products of demand analysis: Business concept map, business flowchart, use case.Two inputs for database analysis: Business concept map, business flowchart.There are two types of business Modeling: Business Architecture modeling and business behavior modeling.Business Structure Modeling: The data structure is mainly analyzed;Business Behavior Modeling: The process, process and so on are mainly analyzed.Learn e-p diagram (entity diagram) and power Design.Introduction to
Detailed Software Design Manual1. Introduction1.1 , preparation purposesBased on the embarrassing situation I encountered when borrowing books, our team decided to develop the book Search Assistant software. Whenever I go to the library to borrow books, will be very bug foun
I recently bought several design books on the design model. I have been reading the essentials and patterns of software design over the past two days. this book is a series of blog Park developers and is written by Zhang Yi.
Chapter 1:
In fact, what is the use of financial software? I think it gives people a quick impression on how to use their existing wealth, how to allocate and design new financial solutions.
Generally, we don't need complicated financial management tools. We need to use this mathematical tool only for large items. For example, when buying a house or calculating income tax, we may need professional tools. So what is th
Background of software development: modern people generally lack of large-length immersive reading, so the development of this software provides users on the mobile phone to read booksThe market for software: People who want to be able to read books on the phoneKey features of the
Open eye, epiphany Software Design
[It168]The night is quiet, and the surrounding area is quiet, and the Earth is turned into silver. At this time, the stars in the sky are like countless starsThe Treasure of the dark night sky dotted with a few flashes. With this, the software development department on the third floor of Yijing company is brightly lit. The sky
Software Summary Design manual1. Introduction1.1 Purpose of writingOur team decided to develop class PIE software based on the embarrassing situation we found in class. Whenever I go to class to find a classroom, will be very unable to find the classroom, resulting in late, or go to the wrong classroom, I feel sad, it is difficult to think of running so far away,
the difference between system test case design and function test case design?
LHow can test cases be organized to complete test tasks at different stages?
The main content of this lecture is:
P 1. Review the concept of Test Cases P 2. Design of the test case framework P 3. Design of functional test case
the very beginning, I paid special attention to the knowledge of software design. The three books I have read here happen to reflect several aspects of software design and development:
Programming and Development: Design
"The beauty of Simplicity," the book is simple enough, 100 pages, there are a lot of white places. Now the publisher popular "XXX Beauty" of the wind, read the "Beauty of Mathematics", "architecture of the United States", "the Beauty of data" ... Several books of this name. At the beginning of the book, it seemed to be a philosophical analysis of what is most important in software
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