The History of Software Industry.
Chapter 3 The History of Software Industry 3.1 Introduction In recent years, the development of the computerising on management of the China enterprise is speeding, especially the giant ones, which begin to utilise information technology to improve managing method, boost the efficiency and increase the performance. During the implementation of the ERP system, more and more SMEs also use the software on finance and business management, this results in the expansion of the management software market. According to the stastics, the sales revenue of domestic software is 25.8 billion RMB in fiscal year 1997; 35.1 billion RMB in 1998, increase 36%; in 1999 this figure is 48 billion RMB, the software includes: MPRII/ERP system, financial management, business management, HRM etc. Until now, the China software has been developing for 10 years, it can be divided into four stages: accounting, financial management, enterprise management, total management. 3.2 Chinese Market In the domestic market, the management software begins from 1990s and it is not so successful, some software manufacturer researched in the enterprise management software in light of the model: MPRII, but the sales can not compare with the financial software in the past. On 26th June, 1998, the members of China Software Industry League gave the press conference to declare the R&D and distribution of management
Setting up Microsoft Excel spreadsheet to simulate projectile motion.
Access Physics Simulating Projectile Motion Using Microsoft Excel V.J. Clarke Setting up Microsoft Excel spreadsheet to simulate projectile motion. The study of the motion of a projectile, called ballistics can be simulated mathematically by use of a spreadsheet, i.e. Microsoft Excel. To create a simulation, a few assumptions have to be made about the projectile, its launch device, and the forces acting on it in a perfect situation. The mass of the projectile is irrelevant because the acceleration due to gravity is roughly the same wherever you are on Earth, and what ever the mass of the object. I assumed that acceleration due to gravity was a constant 9.8 meters/s/s, that air resistance was negligible, and that the projectile itself was suitably streamlined to reduce drag. In fact, for calculations concerning short-range projectile motion, air resistance can be totally disregarded, but calculations concerning real life long-range artillery would need to include a compensation factor to make up for this loss of momentum. The only force acting on the projectile during its flight is the constant downward vertical force caused by gravity of 9.8 N. Formulas used. U = Muzzle Velocity (velocity that projectile leaves the gun, measured in meters per second [m/s], in this case Muzzle Velocity is always 400m/s ) a = Acceleration due to gravity, rounded to a constant 9.8
LabExperiment2Report
Lab Experiment 2: Database Table creation, Maintenance & Views 2.3: Preparation (1) The primary key of a table is a column (or combination of columns in a table) that are used to uniquely identify rows in a table. This means that two different rows in a table may never have the same value in their primary key, and for every row in the table the primary key must have a value. Therefore, if the primary key column(s) are declared NULL, two or more rows in the primary key can have identical values and thus they will NOT be unique. Also the definition of the primary key states that a primary key must have a value and by declaring it NULL, the user has an option of leaving it empty, which is violating the primary key's rules. The primary key column(s) must be declared NOT NULL, to maintain the integrity of data which is entered in the primary key column. A NULL values is treated by mathematically operators, such as average, like any numeric value. These functions operate on the NULL without any problem, but produce an answer which has a value NULL. (4) The following are the entities that will be tested for normalisation, using the 1NF, 2NF and 3NF: SUPPLIER (CODE, NAME, CONTACT, ADDRESS 1, ADDRESS 2, POST CODE, TOWN, PHONE, FAX). INVENTORY (ITEM_CODE, STORE_LOCATION, QUANTITY). st Normalisation Form (1NF) basically states that the entity is in the 1NF if it consists of
A Report On Software Quality.
A Report On Software Quality Submitted By:- << Your Name Goes Here>> Table of Contents * Introduction * More on Software Quality .. * Conclusion Introduction "Quality of software product is often described in vague and broad terms. As a consequence it makes it difficult for software engineers and users to determine how quality influences their assignment and it is almost impossible for test engineers to evaluate the quality of the software product as no concrete and quantitative reference, of what quality in that context means, exists. Hence a possible way to define and measure software product quality is required. The expert designers and system analysts in general apply several methods of quality control during the differenct stages of the development of softwares." More on Software Quality... 'Software quality' is gaining its due importance. Many people think of the phrase as an contradiction, much like 'military intelligence' and 'obedient teenager'. Flawed software is widely believed to be the reason for several spectacular mission failures. The most recent of these being NASA's Mars Observer, which became silent, just three days before it was scheduled to enter its orbit around that planet. Software quality is real. The challenge lies in measuring this intangible feature, so that it can be controlled and improved. And the smart thing to do when
Abstract This report is dedicated to demonstrating and critically reviewing new features and developments happening in Microsofts new Operation System, i.e. Windows 7.
Microsoft Windows 7 Abstract This report is dedicated to demonstrating and critically reviewing new features and developments happening in Microsoft’s new Operation System, i.e. Windows 7. The research team searches through various web resources and constructs this web site. Hopefully this web site will serve you as a one-destination date resources regarding what’s newly happening in Windows 7. The report is structured into six parts as following. . Overview The kernel of Windows 7 is largely unchanged from that of Vista. Only minor upgrade has been made. In fact, lots of Changes in Windows 7 are surface User Interface (UI) changes, which directly impact users [7]. Microsoft develops Windows 7 based on the principle of guaranteeing the compatibility of applications and devices from Vista. In this way, clients will not encounter the tortuous incompatibilities when using Vista [7]. Microsoft promises to “maximize application compatibility between Windows Vista and Window 7. The majority of applications that already work on Windows Vista will continue to work with little or no issues. [19]” Microsoft refuses to give a timetable for Windows 7 development. However, Microsoft Professional Developers Conference indicates some phases as below [3]: . Pre-Beta (M3 or Milestone 3) release to developers (those that attended the PDC and / or Windows Hardware Engineering